10 Best Radiant Heating Repair, Installation, and Maintenance Contractors in Chicago

What Are the 10 Best Radiant Heating Repair, Installation, and Maintenance Contractors in Chicago in 2026?

City & Suburban Heating & Cooling leads this list because the owner performs the diagnosis, and repair gets attempted before replacement gets quoted. Its Google profile holds 5.0 across 190 reviews, and its Yelp profile 4.9 across 251. The rest, in order: Eco Temp HVAC, Chicago Heating & Cooling, WBI Warm, Besco Air, KTS Heating and Cooling, Browns Heating & Cooling, Global Heating and Cooling, A Custom Services, and American Vintage Home.

⚠️ My conflict of interest, stated up front

I am Rob, the owner of City & Suburban Heating & Cooling. City & Suburban is my own company, and I have placed it first on this list.

You should discount my opinion accordingly and check the evidence yourself. Every review I quote carries a name, a star rating, and a date, so you can verify it.

I also list the situations where you should not call us at all. If that section reads thin, the whole list is worth less.

🔎 What a radiant heat search really means in Chicago

Radiant heat in this city means three different machines. Most searches for “radiant heat repair” are really about one of them.

Some readers have cast-iron radiators fed by a steam or hot-water boiler. Some have hydronic tubing under a floor. Some have an electric mat under bathroom tile.

The contractor who is excellent at one can be a stranger to the others. That is the single biggest sorting problem in this category, and it is why boiler service in Chicago and electric mat repair rarely sit with the same crew.

Our Evaluation Criteria

This title sits between two intents, so I blended two criteria sets: best boiler and hydronic service, and best contractors in an area. Weighted in order of importance:

1. Steam versus hot-water and electric radiant competence. Highest weight. A generalist guessing at a one-pipe system is how homeowners end up with a replacement quote.
2. Who performs the diagnosis. Second. A commission-paid advisor and a technician reach different conclusions from the same fault.
3. Repair-before-replace behaviour in the review record. Third. Look for reviewers describing a repair where another firm quoted a replacement.
4. Review record with volume and dates attached. A 5.0 with 12 reviews is not evidence.
5. Service area coverage at neighbourhood level. “Chicagoland” is a marketing word, not a coverage map, which is why a published HVAC service area list matters.
6. Pricing transparency, including the diagnostic fee policy. Whether the fee is credited toward the repair.
7. Permit, inspection, and rebate handling. Chicago mechanical permits, ComEd and Nicor paperwork.
8. Residential versus commercial scope. Rooftop units and kennel floors are not the same job as a greystone radiator, so commercial HVAC service is scored separately.

Who This Guide Is For

• The homeowner whose heat failed and who needs someone to answer the phone today.
• The homeowner holding a four or five figure replacement quote they do not trust.
• The owner of a pre-war bungalow, two-flat, or greystone with an ageing boiler and radiators.
• The condo owner with radiant floor tubing, no ductwork, and no obvious specialist, where a ductless HVAC service option often comes up.
• The small landlord keeping a two-flat or six-flat running on a fixed budget.
• The small commercial manager with a radiant slab or rooftop unit and real downtime cost.

The Shortlist at a Glance

1. City & Suburban Heating & Cooling: Best for a second opinion on a boiler or radiator replacement quote.
2. Eco Temp HVAC: Best for new radiant floor installation paired with heat pump work.
3. Chicago Heating & Cooling: Best for same-day downtown furnace and HVAC response.
4. WBI Warm: Best for homeowners researching underfloor repair before calling anyone.
5. Besco Air: Best for boiler plus mini-split households wanting one large maintenance vendor.
6. KTS Heating and Cooling: Best for radiant floor and snow-melt system repair in condos.
7. Browns Heating & Cooling: Best for itemised, explained pricing on smaller repairs.
8. Global Heating and Cooling: Best for vintage-home retrofits and flat-roof equipment.
9. A Custom Services: Best for readers who found them ranking and want to compare quotes.
10. American Vintage Home: Best for North Shore radiant floor repair and installation.

Master Comparison Table

How We Evaluated

I used a live Chicago-localised Google capture from 8 August 2026, covering 30 organic rows and 15 local-pack rows across 32 distinct players. Ranking weight came from local-pack appearances, organic positions, and AI Overview citations.

Review data was verifiable for six of the ten. Four have no Google review data in that capture, and I have written that plainly rather than guessing.

What I could not verify: response times, warranty terms, licence numbers, and prices for any competitor. Where a detail was not published, the table reads “Not publicly disclosed” instead of an estimate.

 City & Suburban Heating & Cooling

🏠 Radiant and boiler related services

City & Suburban Heating & Cooling works on steam and hot-water boiler systems, radiator balancing, and hydronic diagnostics in pre-war Chicago housing. Hydronic means heat carried by water rather than by air.

That work covers bungalows, two-flats, three-flats, greystones, worker cottages, and gut-rehabbed condos. Many of these systems have been retrofitted three times across a century.

Overall service scope: heating, cooling, indoor air quality, and light commercial. Repair, installation, replacement, and maintenance across furnaces, boilers, heat pumps, hybrid heating, ductless mini-splits, duct repair and sealing, humidifiers, dehumidifiers, and air cleaners.

Coverage area: Chicago and the near north and northwest suburbs, including Skokie, Northbrook, Glenview, Winnetka, Wilmette, Niles, Park Ridge, and Des Plaines.

Equipment types: steam and hot-water boilers, cast-iron radiators, American Standard furnaces, air conditioners, heat pumps, air handlers and coils, and ductless mini-splits.

Types of service: Domestic and light commercial.

Rating: Google 5.0 across 190 reviews, and Yelp 4.9 across 251, captured 8 August 2026.

Pricing: free estimates, with the service call fee disclosed up front and credited toward the repair cost.

⭐ Why it sits at position 1

The reason is structural, not sentimental. I do the diagnosis myself, so no part of my pay rises when the answer is replacement.

Google’s own topic clustering across those 190 reviews puts fair pricing at 27 mentions, problem diagnosis at 14, and no upselling at 5. The Yelp record includes a job another company quoted at $1,800 that we closed out replacing nothing.

My father started this business in 1952, going door to door offering furnace cleaning. City & Suburban’s read is that the standard advice on old boilers gets it backwards, because age is a poor predictor and installation quality is a strong one.

When to choose: you have a boiler, radiators, or radiant tubing in an older Chicago property, and you want the person who diagnoses it to be the person accountable for it. Heater repair in Chicago starts with that diagnosis.

When not to choose: you need plumbing, sewer, or electrical work bundled into the same job; you require guaranteed overnight or Sunday emergency dispatch; your property sits outside Chicago and the near north and northwest suburbs; you need a wall-mounted or through-the-wall AC unit serviced; or duct cleaning is the primary job you are buying.

Contact details: (773) 238-3838 | Schedule Service. A public email address is not disclosed.
Address: 1225 N Cleaver St, Chicago, IL 60642.

💬 Customer reviews

“The storm on June 10 knocked out my AC unit and Rob was out the same day. He immediately identified and fixed the issue. Not only does Rob know what he’s doing, he’s responsive, a total pro, and easy to work with.”

– Gabe Young, 5.0, a month ago, City & Suburban Heating & Cooling Google – Verified Review

“The whole C&S team have been wonderful both in servicing our original furnace and air conditioning systems and with a full HVAC replacement this spring. They are knowledgeable, clear in their assessments and communication, reliable, courteous and mindful of our budget and needs.”

– Raymond Fox, 5.0, 2 months ago, City & Suburban Heating & Cooling Google – Verified Review

One honest caveat on that record. The captured corpus contains no reviews below four stars, so you are reading a one-sided sample by definition.

 Eco Temp HVAC

🔧 Radiant heating related services

Eco Temp HVAC installs radiant floor heating systems and services radiant heat in garages and living spaces. Its captured review record shows radiant work alongside ducted heat pump installation.

One reviewer describes a same-day radiant diagnosis with a follow-up visit weeks later to confirm the fix held. That return visit is the part most contractors skip, and it is the same discipline behind proper heater maintenance.

Overall service scope: radiant floor heating installation, HVAC system repair and maintenance, heat pump installation, thermostat installation, duct and vent repair, and water heater service.

Coverage area: Chicago, listed at 1210 S Indiana Ave. Suburban coverage is not publicly disclosed.

Equipment types: radiant floor systems, ducted Mitsubishi Hyper Heat heat pumps, Ecobee and other smart thermostats, and water heaters.

Types of service: Domestic, with commercial coverage not publicly disclosed.

Rating: Google 4.9 across 176 reviews, captured 8 August 2026.

Pricing: Not publicly disclosed.

⚠️ The honest read on the risk

The radiant praise is real, and so is a serious warning in the same profile. A 1.0 review describes a radiant floor install where two Ecobee thermostats could not be integrated as requested.

After final payment, one air conditioning unit still would not run, and a promised follow-up visit never happened. The reviewer states repeated calls to the call centre produced no callback.

Read that pattern carefully, because it is the exact structure I warn about. A call centre between you and the technician is where accountability leaks out, whether the job is a floor loop or a heat pump installation.

When to choose: you are installing a new radiant floor system, especially alongside a heat pump, and you want a team that plans and pre-orders parts before arriving.

When not to choose: your job depends on complex control integration across radiant and cooling, or you need certainty that post-payment warranty follow-up will be honoured promptly.

Contact details: (224) 253-8131 | ecotemphvac.com. A public email address is not disclosed.
Address: 1210 S Indiana Ave, Chicago, IL 60605.

💬 Customer reviews

“Jordan came to service radiant heat in the garage. He was on time and very knowledgeable on what he was doing. He diagnosed the issue and fixed it the same day and returned a few weeks later for a follow up to make everything was working fine.”

– Carrie Onsen, 5.0, 5 months ago, Eco Temp HVAC Google – Verified Review

“We hired this company to install a radiant floor heating system and asked that it be integrated with Ecobee thermostats… Once the final payment was made, it became nearly impossible to get anyone to respond or honor the follow-up that was promised.”

– Wai Chan, 1.0, 4 weeks ago, Eco Temp HVAC Google – Verified Review

Chicago homeowners raise the same accountability question in public. One north-side thread on radiator maintenance recommends a small independent shop specifically because it is “not backed by private equity”.

“Oasis Heating and Cooling is a compact team, but they deliver exceptional service and are not backed by private equity.”

– r/AskChicago Reddit Thread

That is not consensus, and it is one commenter’s view. It does match what I hear on service calls, though City & Suburban’s own review data leans the same way, so I may be reading it too strongly.

 Chicago Heating & Cooling

⏰ Radiant and heating related services

Chicago Heating & Cooling shows up in the local pack for this category, and its record is built on speed. Reviewers describe same-day and same-hour furnace repair downtown.

Its Google categories cover HVAC contracting, furnace repair, heating contracting, and heating equipment supply. Radiant-specific work is not evidenced in the captured reviews.

Overall service scope: HVAC repair, furnace repair and replacement, heating installation, air conditioning repair, and heating equipment supply.

Coverage area: Chicago, listed at 350 N LaSalle St, 9th floor. Suburban coverage is not publicly disclosed.

Equipment types: furnaces, HVAC systems, rooftop setups, and heat exchangers.

Types of service: Domestic, with commercial coverage not publicly disclosed.

Rating: Google 4.9 across 158 reviews, captured 8 August 2026.

Pricing: Not publicly disclosed. One reviewer references a $498 annual maintenance package for two units.

⚠️ The pattern I would check before hiring

Speed is genuine here, and so is a serious documentation warning. Two recent one-star reviews describe communication collapsing after payment.

One reviewer states a second contractor found the original heat exchanger still installed after a $3,500 replacement was paid for. That is exactly why I photograph the old part before I remove it.

When to choose: your furnace is dead downtown today, and same-day response is the single thing you are buying.

When not to choose: you need documented proof of parts replaced, a radiant or steam boiler specialist, or reliable post-payment follow-up.

Contact details: (312) 852-5152 | chicagoheatingandcooling.com. A public email address is not disclosed.
Address: 350 N LaSalle St, 9th floor, Chicago, IL 60654.

💬 Customer reviews

“Woke up this morning with my hvac system not working. Patrick was here within the hour and fixed it right up. A true professional and honest.”

– William Marcia, 5.0, 9 months ago, Chicago Heating & Cooling Google – Verified Review

“We paid over 3,500 for the replacement… We were told the heat exchanger currently installed appears to be the original old unit and was never actually replaced.”

– Tina Li, 1.0, 2 months ago, Chicago Heating & Cooling Google – Verified Review

“Waited until 3pm and no one showed up. Tried calling, texting, and emailing with no answer or response.”

– Shawn Thomas, 1.0, a month ago, Chicago Heating & Cooling Google – Verified Review

 WBI Warm

📘 Radiant heating related services

WBI Warm ranks here on content, not on service calls. Its underfloor heating repair guide and radiant heat installation guide both hold organic positions for this category, and the domain is cited in Google’s AI Overview.

Treat it as a research stop before you dial anyone. Reading it will improve the questions you ask a contractor, whether the job turns out to be a floor loop or boiler service.

Overall service scope: radiant and underfloor heating guidance and product information.

Coverage area: Not publicly disclosed.

Equipment types: radiant floor heating systems, including electric and hydronic categories.

Types of service: Not publicly disclosed as a Chicago field-service operation.

Rating: No Google review data was pulled for this player in the capture.

Pricing: Not publicly disclosed.

⚠️ Why I still included it

A publisher ranking above local contractors tells you something about the category. The information gap is wide enough that a guide outranks the people who do the work.

Use it for vocabulary, then verify anything about cost against a written local estimate. Published national ranges are estimates, not quotes.

When to choose: you want to understand how underfloor repair works before spending money on a diagnosis.

When not to choose: you have no heat now, or you need a licensed Chicago contractor on site with a permit trail. In that situation, heater repair from a licensed local team is the faster route.

Contact details: Not publicly disclosed | wbiwarm.com.
Address: Not publicly disclosed.

 Besco Air

🔥 Radiant heating related services

Besco Air runs a dedicated radiant floor heating page covering design, layout, and installation, and that page holds organic position for this category. Its review record shows real hydronic competence, meaning water-based heating.

One long-term customer describes a boiler plus seven mini-split cassettes maintained together. That combination is unusual and hard to service well.

Overall service scope: radiant floor heating design and installation, boilers, furnaces, heat pumps, air conditioning, and mini-split maintenance.

Coverage area: Chicago at 5850 N Northwest Hwy, with reviewer evidence from Glenview.

Equipment types: boilers, radiant floor systems, heat pumps, high-efficiency furnaces, and ductless cassettes.

Types of service: Domestic, with commercial coverage not publicly disclosed.

Rating: Google 4.9 across 1,484 reviews, captured 8 August 2026.

Pricing: Not publicly disclosed. One reviewer references a $200 diagnostic visit that produced no fix.

💰 What the volume does and does not prove

That review count is the largest on this list by a wide margin. Volume like that is real evidence of a functioning service department.

It also averages away individual misses. One reviewer paid for a visit, was told his condo layout could not be worked on, and had a competitor fix it the next morning.

When to choose: you have a boiler and mini-splits under one roof and want a large firm with a deep maintenance bench.

When not to choose: your job is an unusual condo layout, or you want the owner rather than an assigned technician making the call. Tight condo installs are often better served by a ductless HVAC service specialist.

Contact details: (312) 809-2695 | bescoair.net. A public email address is not disclosed.
Address: 5850 N Northwest Hwy, Chicago, IL 60631.

💬 Customer reviews

“I have a boiler for heat and 7 mini splits with 2 compressors for ac. They have been great, today I had my spring inspection and cleaning with Alex. She was very through with each casset.”

– steve jaffe, 5.0, a month ago, Besco Air Google – Verified Review

“The tech told me they wouldnt be able to work on our unit because of our condos layout… So basically, I paid besco 200 to come by and give me wrong information.”

– Zachary Hornung, 1.0, a month ago, Besco Air Google – Verified Review

 KTS Heating and Cooling

⭐ Radiant heating related services

KTS Heating and Cooling has the clearest radiant-specific review evidence of any competitor here. Its floor heating page ranks organically, and reviewers describe bedroom radiant repair, a full radiant replacement in a duplex-down condo, and snow-melt system repair.

One reviewer reports finished floor temperatures of 78 to 80 degrees after replacement. That is a measured outcome, not a promise.

Overall service repair scope: radiant floor heating repair and replacement, snow melt systems, furnace and AC repair, commercial rooftop units, and maintenance.

Coverage area: Chicago, listed at 4256 N Ravenswood Ave. Suburban coverage is not publicly disclosed.

Equipment types: radiant floor systems, Carrier equipment, snow-melt systems, thermostats, and commercial rooftop units.

Types of service: Domestic and commercial.

Rating: Google 5.0 across 123 reviews, captured 8 August 2026.

Pricing: Not publicly disclosed. One reviewer secured a Peoples Gas rebate on high-efficiency equipment.

✅ Why this one earned its place

Radiant work rewards contractors who return to verify. KTS reviewers mention warranty coordination, photographs of the fault, and no pressure to replace.

City & Suburban’s read is that this is the honest competitive threat on radiant floor work, and I would rather say so than pretend otherwise. If your job is a floor loop rather than radiators, call them too.

When to choose: your radiant floor loop or snow-melt system has failed, and you want a team that has clearly done that specific repair.

When not to choose: your system is a one-pipe steam boiler with cast-iron radiators, since the captured evidence centres on floor loops. Century-old radiator systems sit closer to our Chicago heating services bench.

Contact details: (708) 480-9798 | ktsheatingandcooling.com. A public email address is not disclosed.
Address: 4256 N Ravenswood Ave, Chicago, IL 60613.

💬 Customer reviews

“The radiant floor heating in my bedroom completely went out right when I needed it most… They diagnosed the issue quickly and handled the radiant heat flooring repair efficiently.”

– Elizabeth Herlihy, 5.0, 2 months ago, KTS Heating and Cooling Google – Verified Review

“The floors are 78-80F, which keeps the entire downstairs at a really comfortable temperature during the coldest times in winter.”

– Jacob Miller, 5.0, a year ago, KTS Heating and Cooling Google – Verified Review

“Never felt like they were trying to upsell or take advantage of us.”

– Chris Myers, 5.0, 5 months ago, KTS Heating and Cooling Google – Verified Review

 Browns Heating & Cooling

 

💰 Radiant and boiler related services

Browns Heating & Cooling appears in the local pack for this category, and its evidenced heating work includes a commercial boiler pump replacement. Radiant floor work is not evidenced in the captured reviews.

What stands out is pricing behaviour. One reviewer itemises a $125 service call credited toward the repair, plus coil cleaning at $239, sealant at $285, and refrigerant at $370.

Overall service scope: AC and furnace repair and replacement, boiler repair, whole-house humidifiers, duct rerouting, and thermostat installation.

Coverage area: Chicago, listed at 1 E Erie St. Suburban coverage is not publicly disclosed.

Equipment types: furnaces, air conditioners, boilers and pumps, humidifiers, smart thermostats, and ductwork.

Types of service: Domestic and light commercial.

Rating: Google 4.9 across 208 reviews, captured 8 August 2026.

Pricing: A $125 service call credited toward repair cost, per reviewer report.

✅ The behaviour worth copying

Two reviewers describe a technician confirming the total before starting work. Another describes a backwards filter housing being flipped rather than a system being sold.

That is the diagnostic instinct I look for in anyone’s shop, including my own. It costs the contractor a sale and buys a decade of calls, which is the same logic behind an honest HVAC maintenance plan.

When to choose: you want line-item pricing explained before work starts on a smaller repair.

When not to choose: your job is a hydronic floor loop or a century-old steam system, where the captured record shows no radiant evidence.

Contact details: (708) 536-8134 | brownshvac.net. A public email address is not disclosed.
Address: 1 E Erie St, Chicago, IL 60611.

💬 Customer reviews

“The service call cost 125, but that amount goes towards any repair cost if needed… Ramond clearly explained the impact of each along with the cost to fix, then confirmed which services I wanted and what my total would be before starting the work.”

– Justin Bassett-Green, 5.0, a month ago, Browns Heating & Cooling Google – Verified Review

“The boiler in my shop stopped working right before a busy weekend. James arrived that afternoon, found a bad pump, and replaced it right away.”

– Jeannette Carroll, 5.0, 6 months ago, Browns Heating & Cooling Google – Verified Review

 Global Heating and Cooling LLC

🏚️ Radiant and vintage-home related services

Global Heating and Cooling earns its spot on vintage Chicago housing work. One detailed review covers a top-floor two-flat with 11-foot ceilings, flat-roof equipment, and a sizing analysis before any recommendation.

The same reviewer had electric wall heating installed on an insulated back porch. That is radiant comfort solving a real Chicago problem, the freezing walk to a basement laundry.

Overall service scope: HVAC installation and replacement, emergency repair, annual maintenance, electric wall heating, and flat-roof equipment work.

Coverage area: Chicago, listed at 919 N Ashland Ave in East Village. Suburban coverage is not publicly disclosed.

Equipment types: commercial and residential Trane equipment, rooftop units, furnaces, and electric wall heaters.

Types of service: Domestic and commercial.

Rating: Google 4.9 across 308 reviews, captured 8 August 2026.

Pricing: Not publicly disclosed.

✅ The diagnosis I respect here

One reviewer called on a very cold Sunday morning and had a technician on site within 90 minutes. The fault turned out to be a gas valve that had been turned off, not the furnace.

That is the correct outcome, and it earns nothing. A contractor who reports the cheap answer is telling you what the expensive answers will look like later.

When to choose: you own a vintage two-flat or flat-roof building and need equipment sized to the actual space, not a rule of thumb. Correct sizing is the first step in any honest heater installation.

When not to choose: your project is a hydronic floor loop repair, since the captured evidence centres on forced air and electric heat.

Contact details: (773) 801-3734 | globalheatingcooling.us. A public email address is not disclosed.
Address: 919 N Ashland Ave, Chicago, IL 60622.

💬 Customer reviews

“They arrived at our house within 90 minutes of my call on a very cold Sunday morning… it wasnt the furnace, the gas had accidentally been turned off.”

– Laura Davis, 5.0, 6 months ago, Global Heating and Cooling LLC Google – Verified Review

“Mike did a deep dive analysis of my space and my roof, measured output and footage, distance of the interior ducts from the unit… He recommended electric heating units to line the walls and it has transformed our quality of life.”

– Utah Carol, 5.0, edited 4 months ago, Global Heating and Cooling LLC Google – Verified Review

 A Custom Services

🔎 Radiant heating related services

A Custom Services ranks in this category on organic pages covering radiant heating. It is on the list because you will meet it in the search results, and you deserve a straight note on what is verifiable.

Very little is. No Google review data was pulled for this player in the capture.

Overall service scope: radiant heating service pages ranking for this category. Fuller scope is not publicly disclosed.

Coverage area: Not publicly disclosed.

Equipment types: Not publicly disclosed.

Types of service: Not publicly disclosed.

Rating: No Google review data in this capture.

Pricing: Not publicly disclosed.

⚠️ How I would treat an unverified ranking

A high ranking is a marketing outcome, not a quality signal. Ask for the licence, the insurance certificate, and two recent radiant jobs you can call.

If a contractor cannot produce those in a day, that is your answer. Chicago homeowners raise the same instinct in public threads about who they trust locally.

“Oasis Heating and Cooling is a compact team, but they deliver exceptional service and are not backed by private equity.”

– r/AskChicago Reddit Thread

When to choose: you are collecting comparison quotes and want a third number against two verified firms.

When not to choose: you need a documented review record and clear radiant experience before letting anyone touch a boiler or a floor. Our own record and licensure are set out on the about us page.

Contact details: Not publicly disclosed | acustomservices.com.
Address: Not publicly disclosed.

 American Vintage Home

🏠 Radiant heating related services

American Vintage Home holds a radiant in-floor heat page for this category, positioned around repairing and installing all makes and models of radiant systems. The name matches the housing stock this article is about.

Review data was not pulled for this player in the capture, so I cannot verify performance. Scope claims here come from the company’s own page, which is the weakest evidence tier.

Overall service scope: radiant in-floor heating repair and installation, plus broader heating and cooling service, per the company’s page.

Coverage area: Chicago area and the North Shore, per the company’s page, which overlaps our own coverage in Wilmette.

Equipment types: radiant in-floor heating systems across makes and models.

Types of service: Domestic, with commercial coverage not publicly disclosed.

Rating: No Google review data in this capture.

Pricing: Not publicly disclosed.

⚠️ What to confirm on the first call

Ask which radiant type they service most, hydronic or electric. Then ask who performs the diagnosis and how they are paid.

Those two answers sort this category faster than any review page. City & Suburban’s data points the same way, though a single capture window may understate a firm with a longer track record.

When to choose: your radiant floor system sits in a North Shore or north-side home and you want a vintage-housing framing on the work.

When not to choose: you need verifiable third-party review evidence before booking, since none was available in this capture.

Contact details: Not publicly disclosed | americanvintagehome.com.
Address: Not publicly disclosed.

Which Provider Should You Shortlist?

• No heat tonight in the city: call the firms with same-day evidence, then verify who answers the phone before you agree to a visit.
• A replacement quote you want checked: get a second diagnosis from an owner-operator with no commission on the answer.
• A hundred-year-old boiler and radiators: choose steam and hot-water experience in pre-war housing over floor-loop specialists.
• A condo with a failed radiant floor loop: KTS Heating and Cooling has the clearest radiant repair evidence in this capture.
• A six-flat you manage on a budget: prioritise a shop that keeps ageing equipment alive and itemises every invoice.
• A storefront with a failed rooftop unit: shortlist the two firms with documented commercial HVAC repair work.

📞 Call before you compare further

City & Suburban Heating & Cooling answers at (773) 238-3838, and the service call fee is disclosed up front and credited toward the repair. Prefer to write it down first? Use the Schedule Service form. Estimates are free, and $50 off a service call applies, excluding duct cleaning.

 Do You Have Hydronic, Steam or Electric Radiant Heat, and What Actually Breaks on Each in Chicago?

Cast-iron radiators fed by one pipe with a small side vent are steam. Radiators or floor loops fed by two pipes with a circulator pump are hot-water hydronic. A thermostat with no boiler anywhere is an electric mat. Steam fails at vents and the water feeder, hydronic at circulators and air-bound loops, and electric at broken elements.

🔎 Name your system in sixty seconds

Most callers cannot tell me what they own, and that is not their fault. No one hands you a manual when you buy a 1920s two-flat.

Count the pipes at the bottom of one radiator. One pipe with a small metal vent on the side means steam, which is heat carried by vapour.

Two pipes means hot-water hydronic, which is heat carried by circulating water. Warm tile with no boiler in the basement means an electric mat under the floor.

⚠️ What breaks on steam systems

Air vents are the usual culprit. A vent that hisses continuously while the system runs is losing water as vapour, not just making noise.

That lost water gets replaced with fresh water, and fresh water carries oxygen. Cast iron does not like oxygen, so every refill quietly shortens the block’s life. This is standard ground for boiler service in pre-war buildings.

The automatic water feeder is the second risk. When one fails in the open position, it keeps feeding, and the radiators and piping can flood.

⚙️ What breaks on hydronic and electric systems

Hydronic loops fail at the circulator pump, or they go air-bound. Air-bound means trapped air blocks water movement, so one room stays cold while the boiler runs fine.

Electric mats fail at a broken heating element, usually from a screw, a nail, or a later renovation. City & Suburban reads the near-boiler piping before the boiler itself, because a century of retrofits leaves a signature there.

🔧 What a real repair call does

A guess costs you a floor. Proper diagnosis means pressure-testing the loop, thermal imaging the slab, and using element fault-locating equipment on electric systems.

Then only the affected section gets opened. City & Suburban’s Google review record carries problem diagnosis as its own clustered theme at 14 mentions across 190 reviews, which is what a heater repair visit should start with.

✅ The maintenance that prevents most of this

During the heating season, drain a little water from a steam boiler once a month. That should be the only time you add water, and it confirms the low-water cutoff still works.

Skipping it is like never changing your car’s oil. Nothing happens for a while, then everything happens at once, which is the case for scheduled heater maintenance.

💬 What homeowners say

“I’m not very experienced, but I’ve swapped vent valves on single-pipe radiators that hiss loudly when they fail.”

– r/AskChicago Reddit Thread

“The radiant floor heating in my bedroom completely went out right when I needed it most… They diagnosed the issue quickly and handled the radiant heat flooring repair efficiently.”

– Elizabeth Herlihy, 5.0, 2 months ago, KTS Heating and Cooling Google – Verified Review

“Eddie and his coworker arrived promptly, were nice & polite, and explained their work well. I was able to see their work after.”

– Edward Lee, 5.0, 2 months ago, City & Suburban Heating & Cooling Google – Verified Review

City & Suburban Heating & Cooling works steam and hot-water boilers and radiator balancing across pre-war bungalows, two-flats, greystones, and converted condos. That is why our first question on the phone is how many pipes reach your radiator, not what a replacement would cost.

 Is My Old Boiler Genuinely Unsafe, or Am I Being Sold a Replacement I Do Not Need?

Demand the evidence, not the verdict. A genuinely compromised cast-iron block shows itself, through steam clouds off the chimney on a clear cold day, measurable water loss, and a combustion reading you can photograph. City & Suburban’s replacement threshold is a system past roughly 12 years where the repair exceeds about a third of replacement cost. Age alone is never the trigger.

⚠️ What real evidence looks like

On a brisk, clear winter day, look at the chimney. White clouds pouring out of a steam boiler’s flue are vapour escaping a compromised block, not exhaust.

That is a finding you can see from the sidewalk. A verdict delivered with no reading, no photo, and no location is a script, not a diagnosis.

📸 The four things to photograph

Ask the technician to stop and let you take pictures. City & Suburban does its own diagnostics on service calls, so nothing gets described secondhand.

1. The fault itself, with the crack, leak, or burned component visible.
2. The combustion analyser reading on screen.
3. The data plate showing make, model, and input rating.
4. The old part, before it leaves your basement.

💰 The arithmetic I actually use

My honest threshold has two inputs, not one. Past roughly 12 years, and a repair over about a third of replacement cost, the math starts tipping.

What overrides that: block condition, the state of the near-boiler piping, and whether parts are still available. A well-piped 60-year-old boiler can outlive a badly installed new one.

Around 80% of a system’s working life is decided on installation day. Oversized equipment short-cycles, which means it starts and stops too often, and it dies early, so correct sizing decides the value of any heater installation.

⚠️ The pattern that should stop you signing

Documentation is your only protection after the van leaves. One Chicago homeowner paid over $3,500 for a heat exchanger, then a second contractor found the original still installed.

City & Suburban’s Yelp record runs the other direction, including a job a competitor quoted at $1,800 that we closed out replacing nothing.

✅ How to ask for a second diagnosis

Say this plainly: “I want a second diagnosis before I approve anything.” No honest contractor is insulted by that sentence.

My rule for readers is simple. Never approve a replacement over $1,500 on one opinion, especially in January. A second opinion on Chicago heating service costs far less than a wrong replacement.

💬 What homeowners say

“Super responsive, knowledgeable and friendly with very fair prices and quality work. Have used them the last 2 years to recharge my AC refrigerant and never got up sold.”

– Brian Hughes, 5.0, 3 months ago, City & Suburban Heating & Cooling Google – Verified Review

“He discovered that the filter housing was actually installed backwards by whoever worked on it last year… I really liked that he did not try to sell me a whole new system.”

– Paul Ernst, 5.0, 4 months ago, Browns Heating & Cooling Google – Verified Review

“I strongly encourage others to thoroughly document all work, request detailed invoices and photos, and consider obtaining a second opinion before hiring this company.”

– Tina Li, 1.0, 2 months ago, Chicago Heating & Cooling Google – Verified Review

City & Suburban Heating & Cooling attaches no commission to the answer, because the owner performs the diagnosis. Google clusters honest assessment at 4 mentions and no upselling at 5 across 190 reviews.

 What Does Radiant Heat Repair or Installation Cost in Chicago, and Can It Even Be Retrofitted Into a Century-Old Home?

Published installed radiant floor costs run roughly $6 to $20 per square foot, and the spread between sources is real. None of those figures comes from a primary dataset. In Chicago’s pre-war housing, access usually decides the price: floor height, joist access, manifold location, and whether the staircase can carry the load.

💰 The published ranges, and who published them

Read that table as a budgeting range only. These are aggregator estimates, and they disagree with each other by nearly threefold.

💸 What actually drives your number

Floor build-up comes first. Adding tubing raises the floor, and in an older home that can mean door trimming and threshold work.

Then the manifold, which is the box where all loops connect and get balanced. It needs a real home with access, not a guess behind drywall.

Parts markup is the invisible line. Industry reporting puts HVAC parts at 300% to 600% of wholesale, which is why an itemised estimate matters more than a discount.

🏠 Feasibility by Chicago housing type

• Bungalow: electric mats work well in bathrooms and kitchens; whole-floor hydronic depends on joist access from below.
• Two-flat or three-flat: hydronic is often workable, but tenant disruption and floor height decide the scope, a common question across Logan Square and neighbouring blocks.
• Greystone or worker cottage: cast-iron removal is a structural question, since a stair tread may need to carry 800 pounds safely.
• Gut-rehabbed condo: frequently the hardest, because floor height is already spent and there is no duct path.

City & Suburban retrofits ductless mini-splits in condos and additions with no duct path, which is often the honest answer when radiant will not fit.

💰 The four line items to demand

Ask for the estimate broken into parts, labour, permit, and equipment model number. Anything bundled into one figure cannot be compared to a second quote.

City & Suburban’s leading Google review theme is fair pricing, at 27 mentions across 190 reviews. In practice that means the breakdown arrives before anyone signs.

📏 The one measurement to take before you call

Measure your existing floor height at a doorway, then measure the gap under the door. That number tells any contractor instantly whether hydronic is realistic.

Do it before the first visit. It saves a diagnostic trip, and it stops a salesperson selling you a system your doors cannot accept. Bring that number when you schedule service.

💬 What homeowners say

“The floors are 78-80F, which keeps the entire downstairs at a really comfortable temperature during the coldest times in winter… by using high efficiency products we were able to get a significant rebate.”

– Jacob Miller, 5.0, a year ago, KTS Heating and Cooling Google – Verified Review

“The service call cost 125, but that amount goes towards any repair cost if needed… he confirmed which services I wanted and what my total would be before starting the work.”

– Justin Bassett-Green, 5.0, a month ago, Browns Heating & Cooling Google – Verified Review

“The whole C&S team have been wonderful… knowledgeable, clear in their assessments and communication, reliable, courteous and mindful of our budget and needs.”

– Raymond Fox, 5.0, 2 months ago, City & Suburban Heating & Cooling Google – Verified Review

City & Suburban Heating & Cooling gives free estimates, and the service call fee is disclosed up front and credited toward the repair. The bitterness of poor quality outlasts the sweetness of a low price, which is why we price off the load and the access rather than a square-foot rule.

 Do You Need a Chicago Permit for Boiler or Radiator Work, and Who Must Be Licensed to Do It?

No building permit is required to repair, or to replace in-kind, a boiler or radiator in a Chicago residential building up to four stories. Change the type, size, or shape and a permit is required. A separate boiler permit applies in other cases, and welded pressure-boundary repairs require a state Boiler and Pressure Vessel Repairer licence.

⚠️ Why you get two different answers

Permit confusion in this city cuts both ways. Some contractors use it to stall a job, and some use it to skip an inspection.

Both cost you. The homeowner’s protection is one written line, and I will give you the exact wording further down.

✅ The in-kind exemption, stated plainly

In-kind means the same type, same size, and same shape as what you had. The City’s own permit-not-required list covers that work in residential buildings up to four stories.

So a radiator swap or a boiler repair usually needs no building permit. City & Suburban handles Chicago mechanical permits and inspections, and states on the estimate which category the job falls into, whether the work is boiler service or a full replacement.

📋 When a permit is required

• The equipment type changes, for example steam to hot water.
• The size or capacity changes, which includes upsizing a boiler.
• The installation is a separate boiler or unfired pressure vessel installation covered by the construction codes.
• The work involves new gas piping or venting beyond a like-for-like replacement.

Emergency repairs are not meant to wait on paperwork. The codes provide for permitting emergency work on the following business day, which matters when a heater repair cannot wait.

🔧 Who may legally weld on your boiler

This is the part almost nobody checks. Welded repairs to a boiler’s pressure boundary require a state repairer licence under Chicago’s code and Illinois statute.

Ask for that licence number before you authorise any weld on cast iron. City & Suburban’s technicians are NATE-certified, and the company is licensed in the City of Chicago and the State of Illinois.

📝 The verification checklist before you authorise

Run this in five minutes on your phone. It costs nothing, and it is the cheapest insurance available on a four-figure job.

1. Ask for the business licence and a current certificate of insurance, emailed to you.
2. Ask whether the work is in-kind or permit-triggering, in writing.
3. If a permit is required, get the permit number before work starts.
4. For any welded boiler repair, get the repairer licence number.
5. Keep the old part, or a photo of it, until the job is signed off.

💰 The one sentence to put in writing

Send this before the deposit: “Please confirm in writing whether this work is in-kind under the City of Chicago permit-not-required list, and if not, provide the permit number.”

Anyone honest answers that in a sentence. City & Suburban writes it on the estimate as standard, which is why I feel comfortable telling you to demand it from everyone.

⚠️ What a permit does not do

A permit is not a quality guarantee. It confirms the work was declared and inspected, not that the near-boiler piping was done well.

I have seen permitted installs I would not accept, and unpermitted repairs that were clean. Use the permit as a paper trail, then judge the workmanship separately, the same way you would assess any Chicago heating service job.

City & Suburban Heating & Cooling handles the permit and inspection process as part of the job, including boiler and radiator work in pre-war buildings. That is a process detail, not a selling point, and any contractor you hire should treat it the same way.

 Which Nicor Gas and ComEd Rebates Apply in 2026, and Is a 95% Boiler Actually Required?

Nicor Gas pays $350 for a boiler at 95% AFUE or higher under 300 MBTUH, and $500 for a qualifying combination boiler, for equipment installed between January 1 and December 31, 2026. Applications are due within 90 days of installation or by January 31, 2027, whichever comes first. And no, 95% is not required. The federal minimum for gas-fired hot water boilers is 84% AFUE.

💰 The 2026 numbers, in one table

AFUE means annual fuel utilisation efficiency, the share of fuel that becomes usable heat.

Apply within 90 days of installation, or by January 31, 2027. Miss that window and the money is gone, regardless of what you installed.

📝 The four invoice fields that decide everything

Rebates rarely fail on equipment. They fail on paperwork, and the same four fields cause it every time.

1. Manufacturer name.
2. Exact model number.
3. Installation date.
4. Total installed cost.

City & Suburban tracks ComEd and Nicor Gas rebates as part of the quote, so those fields exist on the paperwork from day one. Ask any contractor to confirm all four in writing before you pay a deposit on a heater installation.

⚠️ The 84% versus 95% truth

Here is the sentence that gets used to close sales: a condensing boiler is now required. It is not.

The federal minimum for gas-fired hot water boilers is 84% AFUE, and 86% for oil-fired. A 95% condensing standard was proposed in 2023 and never finalised.

So high efficiency is a rebate decision and a fuel-bill decision. It is not a compliance decision, and the same logic applies to hybrid heating systems.

💸 The honest caveat on ultra-efficient equipment

Chasing the top efficiency tier has a repair cost attached. Very high efficiency equipment carries more electronics, and some proprietary thermostats cost over $1,000 to replace, with no generic substitute.

City & Suburban’s read is that the standard advice gets this backwards for a lot of older Chicago homes. Sealing the envelope and balancing the radiators often returns more per dollar than the last five efficiency points, and sealing includes duct repair where ducts exist.

✅ Verify the model before you sign

Ask for the AFUE and the model number on the estimate, then check that model in the AHRI Directory of Certified Product Performance. That directory is the certified rating source, not the brochure.

If a contractor resists writing the model number down, that tells you something. City & Suburban is an American Standard dealer, and the model number goes on the estimate, because the rebate application will demand it later anyway.

💰 The email to send tonight

Copy this: “Before I pay a deposit, please email the manufacturer, model number, AFUE, and total installed cost you will put on the final invoice.”

That single email protects a $350 or $500 rebate. It also tells you, before any money moves, how organised the company actually is.

City & Suburban Heating & Cooling fills the rebate paperwork out alongside the homeowner rather than pointing at a website. The line that disqualifies people is almost always a missing model number, and that is a clerical failure, not an equipment one.

 What Should You Ask a Radiant Heating Contractor Before You Sign Anything?

Ask who performs the diagnosis and whether they are paid on commission, whether an ACCA Manual J load calculation is included, whether the work is in-kind or permit-triggering, and whether the estimate separates parts, labour, and permit. City & Suburban answers all four in writing, and any contractor can. If the answer is a brochure, you are talking to a sales process rather than a service department.

⚠️ Why your emergency gets sold four times

Lead marketplaces do not fix heating systems. They sell your phone number to three or four contractors at once, and whoever calls back first wins.

Nobody owns the outcome after that ticket closes. That is the structure, not a failure of any one company inside it.

✅ The eight questions, and what a good answer sounds like

1. Who performs the diagnosis, and are they paid on commission? A good answer names a person and says no.
2. Is a Manual J load calculation included? Manual J means sizing from your actual heat loss, not a rule of thumb.
3. Is this work in-kind, or does it trigger a Chicago permit? Ask for it in writing.
4. Will the estimate separate parts, labour, permit, and equipment model number?
5. What is the service call fee, and is it credited toward the repair?
6. Will you photograph the fault and leave the old part with me?
7. Who answers the phone after hours, a person or a call centre?
8. Which radiant type do you service most, steam, hot water, or electric?

City & Suburban discloses the service call fee up front and credits it toward the repair, so question five has a one-line answer here. The same disclosure applies to an HVAC maintenance plan.

❌ Red flags worth walking away from

• Sizing by rule of thumb, for example one ton per 400 square feet.
• A replacement quote produced before any diagnostic reading was taken.
• Refusal to write the model number or AFUE on the estimate.
• “Family-owned” as the only trust claim, with no location or owner named.

That last one matters more than it used to. Private equity accounted for about 8% of HVAC deals in 2023, and roughly 23% by 2024, so the name on the van often outlasts the family behind it. Ours is set out on the about us page.

💬 What homeowners say

“Our A/C stopped working during the recent heat wave. Other companies didn’t return our messages, but City & Suburban answered right away and were professional and communicative throughout.”

– Matt Feery, 5.0, 3 weeks ago, City & Suburban Heating & Cooling Google – Verified Review

“Setting up an apt was quick, easy, and painless. No one bothered me unnecessarily. Apts were available at 7am, which is great to take care of things before busy work hours.”

– Zeshan Aslam, 5.0, 2 months ago, City & Suburban Heating & Cooling Google – Verified Review

“Oasis Heating and Cooling is a compact team, but they deliver exceptional service and are not backed by private equity.”

– r/AskChicago Reddit Thread

That last one is one commenter, not consensus. It does match what I hear in basements, and City & Suburban’s own review data leans the same way, though a single thread proves nothing on its own.

📞 Call, then compare

City & Suburban Heating & Cooling answers at (773) 238-3838, from a single Chicago location at 1225 N Cleaver St, with no call centre in between. Estimates are free, $50 off a service call applies (excluding duct cleaning), and Wells Fargo financing is available for replacements. Prefer to write it down? Use the Schedule Service form.

🔎 The question I am still sitting with

Here is what I do not know yet. If consolidation keeps moving at the 2023 to 2024 pace, I am not sure an independent shop can stay reachable by phone in ten years without becoming something else.

City & Suburban’s answer so far is to keep the diagnosis with the owner and grow slowly. If you have watched a favourite local shop change hands, I would genuinely like to hear what tipped you off first. Our full Chicago service area list is published for exactly that reason.

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