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Heat Pump Repair and Installation in Chicago

A heat pump that blows cool air in January, ices over or leans on its backup heat usually has one fault to find, not a whole system to replace. City & Suburban handles heat pump repair on every make, and a NATE-certified technician puts the price in writing before work starts. For heat pump installation, City & Suburban installs American Standard equipment, and a sound quote plans backup heat for Chicago's coldest nights. Emergency service runs 24/7.

  • Heat pump repair service on every make
  • American Standard heat pump installation
  • Written price before any work starts

Updated October 2026

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Describe what the system is doing.

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Chicago local
Family owned
Since 1952
24/7 Emergency heat pump repair, every day
All makes Heat pumps repaired, any brand or age
American Standard Heat pumps and air handlers installed
Written price Before any repair or install begins
4.98 ★ Average from 204 Google reviews

Service types

Heat Pump Repair and Installation Work We Handle

Common heat pump repair and installation jobs City & Suburban handles for Chicago homes and businesses.

Defrost and ice faultsDefrost boards, sensors and coils sealed in ice
Reversing valve repairSolenoid coils and stuck valves tested in both modes
Aux and emergency heatBackup heat strips that never shut off, diagnosed
Heat pump refrigerant leaksRefrigerant leaks traced at coils, valves and lines
Cold-climate heat pumpsVariable-speed models built for below-zero nights
Dual-fuel with a furnaceA heat pump paired with a gas furnace for deep cold
Heat pump thermostat wiringO/B settings, aux staging and outdoor lockouts

Final recommendations follow the installed conditions, equipment instructions and applicable Chicago requirements.

Heat pump problems

What the heat pump is doing, and what a repair visit checks

Each card matches a symptom Chicago homeowners report, from ice that never clears to backup heat that never shuts off. Open one for the likely causes, the safe checks to make first and what the technician tests. A burning smell or a breaker that trips twice comes before everything else.

Blowing cool or lukewarm air on heat Call today Usually one visit

Likely causes

  • Thermostat on Cool or Auto, or a wrong O/B setting after a thermostat swap
  • A reversing valve stuck in the cooling position
  • Low refrigerant charge from a leak

Check safely first

  • Confirm the thermostat is set to Heat, not Cool or Auto
  • After ten minutes of running, feel a supply vent: heat pump air feels warm, not hot

What the technician does

The technician measures the air temperature entering and leaving the indoor unit and reads the refrigerant pressures. Those numbers separate a healthy heat pump, which delivers milder air than a furnace, from a stuck reversing valve or a low charge. The thermostat setup is checked too, because one wrong setting can run the system backward.

Usually one visit

Outdoor unit covered in ice that never clears Within 24 hours Usually one visit

Likely causes

  • A failed defrost control board or defrost sensor
  • An outdoor fan motor that has stopped
  • Low refrigerant, or melt water refreezing under the unit

Check safely first

  • Clear snow from around and under the unit without touching the coil
  • Switch to Emergency Heat if the coil is sealed in ice

What the technician does

Light frost that melts off every so often is normal defrost. A coil locked in ice is not. The technician forces a defrost cycle, tests the sensor and control board, and checks the fan and reversing valve. Drainage under the unit gets a look too, since melt water that refreezes builds a block of ice from below.

Usually one visit

Aux or emergency heat light stays on Within 24 hours Usually one visit

Likely causes

  • The heat pump has stopped heating, so the backup carries the whole load
  • Thermostat staging or an outdoor lockout set wrong
  • Emergency Heat left on after a cold snap

Check safely first

  • Make sure the thermostat is on Heat, not Emergency Heat
  • See whether the outdoor fan is turning while the aux light is on

What the technician does

Auxiliary heat should help during defrost and deep cold, then stop. The technician first checks whether the outdoor unit is doing its share, then reviews thermostat staging, lockout temperatures and the heat strip relays. Electric heat strips cost far more to run than the heat pump, so a light that never goes off shows up on the next electric bill.

Usually one visit

Runs nonstop on cold days, house falls behind Call today Usually one visit

Likely causes

  • A heat pump too small for the house, or not rated for deep cold
  • Backup heat strips or furnace staging that never come on
  • A dirty filter or coil cutting airflow

Check safely first

  • Note the outdoor temperature when the house starts to fall behind
  • Replace the filter if it looks gray and packed

What the technician does

Long run times in deep cold are normal for a heat pump. Losing ground to the thermostat is not. The technician checks the backup heat, airflow and charge, then compares the unit's rated output at low outdoor temperatures with what the house needs. That shows whether the answer is a repair or a capacity problem.

Usually one visit

Heat pump will not cool in summer Within 24 hours Parts may need ordering

Likely causes

  • A failed reversing valve or its solenoid coil
  • Low refrigerant from a leak
  • A failed capacitor or contactor at the outdoor unit

Check safely first

  • Set the thermostat to Cool, a few degrees below room temperature
  • Check the outdoor disconnect switch and the breaker

What the technician does

One compressor does the heating and the cooling, and the reversing valve flips the direction. The technician tests the valve's solenoid, then measures pressures in both modes. A burned-out solenoid coil is a quick fix. A stuck valve body means a refrigerant repair, priced in writing before any work.

Parts may need ordering

Outdoor fan stopped, or the unit only hums Call today Usually one visit

Likely causes

  • A failed run capacitor or contactor
  • A seized outdoor fan motor
  • A compressor that will not start, or a tripped breaker

Check safely first

  • Turn the system off at the thermostat if the unit hums with a still fan
  • Reset a tripped breaker once at most

What the technician does

A humming unit with a still fan can overheat the compressor, so the system should stay off. The technician tests the capacitor, contactor and fan motor, then checks the compressor windings and amp draw. A failed compressor on an older heat pump opens the repair or replace conversation, with both prices on paper.

Usually one visit

Frost on the refrigerant lines or a hissing sound Within 24 hours Leak search can take time

Likely causes

  • A refrigerant leak at a joint, valve or coil
  • Low airflow freezing the indoor coil
  • A damaged line set where it passes through a wall

Check safely first

  • Turn the system off if the indoor lines are coated in ice
  • Look for oily residue on fittings without touching the lines

What the technician does

Adding refrigerant without finding the leak only buys a few weeks. The technician finds the leak with an electronic detector or bubble test, repairs it, pulls a vacuum and weighs in the correct charge. Older heat pumps on R-22 use a refrigerant that is no longer made, which changes the repair math.

Leak search can take time

Pricing

What decides the cost of heat pump repair and installation

City & Suburban does not post a heat pump price list, because the failed part sets the cost of a repair and the house sets the cost of an installation. These six factors move the number most. Each one is explained at the visit, and the exact price goes in writing before work starts.

The component that failedA defrost sensor or capacitor is a short repair. A reversing valve or compressor means recovering the refrigerant, brazing and far more labor.
Refrigerant leaks and rechargingFinding a leak, sealing it and recharging by weight takes longer than a top-off. R-22 systems add the cost of a refrigerant no longer made.
Capacity and cold-weather ratingA larger heat pump, or a variable-speed model built to hold its output on below-zero nights, costs more than a basic single-stage unit.
How the backup heat worksElectric heat strips in an air handler, or a dual-fuel setup that keeps a gas furnace for the coldest days, change the price and the running cost.
Ducts, air handler and wiringSound ducts and spare electrical capacity keep an install simple. Undersized ducts, a new air handler or a heavier circuit add work.
Where the outdoor unit sitsA ground pad beside the old outdoor unit is simplest. Two-flat roofs, gangways, alley garages, long refrigerant lines and snow clearance add labor.

How City & Suburban prices every job

  1. 1 Diagnosis firstA technician finds the cause before anything is quoted.
  2. 2 Written price before any workThe exact price, in writing, for approval.
  3. 3 No hidden feesThe approved price is the price.
  4. 4 Repair first where repair is rightReplacement only when the evidence supports it.
$500 off new equipment Valid till 31st October 2026
$1,000 off whole system (furnace & AC) Valid till 31st October 2026
$50 service calls (No duct cleaning) Valid till 31st October 2026

Financing available

Wells Fargo Home Projects credit card, subject to credit approval.

Open 24 hours, 7 days a week

24/7 service, whatever the size of the job

A small fix or a full breakdown, City & Suburban answers around the clock, every day of the week. Call any time, day or night, and describe the problem.

  • Big jobs and small jobs
  • Day, night and weekends
  • One number: (773) 238-3838

Repair or replace?

When a heat pump repair still pays, and when replacement makes more sense

Start with the $5,000 rule: multiply the heat pump's age by the repair quote, and a total over 5,000 means a heat pump replacement price belongs next to the repair. Heat pumps run in summer and winter, so they log more hours than a furnace and wear sooner. A defrost board or fan motor on a younger system is worth fixing. A failed compressor on an older R-22 heat pump rarely is. City & Suburban repairs first where repair is right and writes up both prices when replacement is on the table.

AGEYears since the heat pump went in
× QUOTEQuoted repair price
= TOTALWeigh it against 5,000

Above 5,000, or a dead compressor on R-22: get a replacement quote too.

How long heat pumps usually last
Air-source heat pump
10 to 15 years
Air handler with heat strips
15 to 20 years
Geothermal heat pump, indoor unit
20 to 25 years
Geothermal ground loop
50 years or more

Equipment types

Every heat pump setup found in Chicago homes

Air-source heat pump repair
Air-source heat pump repair

Split heat pumps with an outdoor unit and an indoor coil or air handler, any make, from defrost faults to compressor tests.

Cold-climate heat pumps
Cold-climate heat pumps

Variable-speed heat pumps built to keep heating on below-zero nights, the type to weigh for an all-electric Chicago home.

Air handlers and heat strips
Air handlers and heat strips

The indoor half of an electric heat pump installation: blower, coil and the backup heat strips for the coldest hours.

Dual-fuel with a gas furnace
Dual-fuel with a gas furnace

The gas furnace half of a dual-fuel system, which takes over from the heat pump below a set outdoor temperature.

Indoor coils on furnace setups
Indoor coils on furnace setups

The evaporator coil above the furnace, which a heat pump uses in both seasons, checked for leaks and airflow.

Thermostats and controls
Thermostats and controls

O/B settings, aux heat staging and outdoor lockouts set so the heat pump does the work and the backup only helps.

Units on roofs and tight lots
Units on roofs and tight lots

Outdoor units on flat roofs and tight lots, where access and drifting snow shape the job.

The heat pump brand City & Suburban installs

American Standard logo
American Standard

Heat pump installation with American Standard equipment

When a new system is the right answer, City & Suburban installs American Standard heat pumps, air handlers and matching furnaces for dual-fuel homes. The written quote should spell out the capacity, the backup heat, the duct and wiring work and the outdoor unit's location. Repairs still cover every make.

American Standard Gas furnaces Gas furnaces Standard and high-efficiency
American Standard Heat pumps Heat pumps Including cold-climate models
American Standard Air handlers Air handlers For heat pump systems
American Standard Evaporator coils Evaporator coils Matched to the outdoor unit
American Standard Air conditioners Air conditioners Replaced with the furnace or alone

How it works

How a City & Suburban visit works

  1. 1
    Reach out Call, text or book online.
  2. 2
    Pick a time Same-day visits when the schedule allows.
  3. 3
    On-site visit A technician diagnoses the problem.
  4. 4
    Honest pricing The price, in writing, before any work.
  5. 5
    Approved work Only the work you approve, then tested.
  6. 6
    Clear results Findings and next steps explained.

Reviews

What Chicago homeowners say about repairs and installs

Quoted word for word from Google, where City & Suburban averages 4.98 across 204 reviews.

★★★★★
“No upsells, just what I need for reliable AC and heat throughout the year.”
Eric F.Google · Aug 2026 ↗
★★★★★
“Terrific guy and great team for repair and installation.”
Emily B.Google · Dec 2025 ↗
★★★★★
“Two other companies would not even quote the job due to the roof location of the compressor. C&S H&C came and provided a quote on very short notice.”
JCGoogle · Jul 2026 ↗
★★★★★
“Rob came out the next day after me calling and quickly diagnosed the issue and was fully transparent on options and pricing.”
Thomas C.Google · Sep 2025 ↗
★★★★★
“Rob, I thank you for always being prompt when the heat goes out in the middle of the winter, when the ac crashes when it's 100F out”
Sneha R.Google · Mar 2022 ↗
★★★★★
“City & Suburban were the only ones that explained what they would do, when they would do it and did exactly as they said without charging an absurd amount of money.”
Jens P.Google · Jun 2026 ↗
★★★★★
“I got a call back within 10 minutes of reaching out. They scheduled me for the following morning and gave me advice on what to do in the meantime.”
Mohammad N.Google · Aug 2026 ↗
NATE-certified Certified HVAC technicians
BBB A+ rating Better Business Bureau
Family-owned since 1952 Serving Chicago homes and businesses
Upfront pricing No hidden fees

City & Suburban work in Chicago

Furnace with a City & Suburban service sticker on the cabinet
Furnace with a City & Suburban service sticker on the cabinet

Service areas

Heat pump repair and installation across Chicago and nearby suburbs

City & Suburban repairs and installs heat pumps in 13 Chicago neighborhoods and 8 north and northwest suburbs, from West Town out to Winnetka. Pick an area for local details.

Chicago neighborhoods

Wicker Park West Loop West Town Lincoln Park Pilsen Rogers Park Bucktown Logan Square Humboldt Park Wrigleyville Old Town Ukrainian Village Lakeview

North and northwest suburbs

Skokie Northbrook Glenview Winnetka Wilmette Niles Park Ridge Des Plaines

Each link opens that area's page on the City & Suburban site.

Based in West Town

1225 N Cleaver St, Chicago, IL 60642. Technicians cover the city and the north and northwest suburbs.

Not on the list? Call (773) 238-3838 to check an address outside these 21 areas.

Call City & Suburban
Serving 13 Chicago neighborhoods and 8 north and northwest suburbs from West Town, Chicago.

Heat pump repair and installation questions

Can a heat pump heat a Chicago home on below-zero nights?

Yes, with the right equipment and a backup plan. Older heat pumps lost much of the heat output as the outdoor air fell toward zero. Cold-climate models use variable-speed compressors to keep heating on far colder nights. Even so, most Chicago installs keep a backup: electric heat strips in the air handler, or a gas furnace in a dual-fuel setup. A written quote should show the heat pump's rated output at 5°F next to the home's heat loss. City & Suburban installs American Standard heat pumps and puts the exact price in writing before any work starts. A sound quote names the backup heat.

Why does heat pump air feel cooler than furnace air?

A gas furnace sends out very hot air in short bursts. A heat pump delivers milder air over longer run times. On a cold day that air can feel cool on a hand, even while the house holds the thermostat setting. Cool vents and a falling indoor temperature tell a different story, pointing to a stuck reversing valve, a low charge or a wrong thermostat setting. The technician compares the air going into and out of the indoor unit to tell the two apart. City & Suburban technicians are NATE-certified. Thomas C. wrote in a Sep 2025 Google review that Rob "quickly diagnosed the issue and was fully transparent on options and pricing."

Is ice on the outdoor unit normal in winter?

A light frost is normal. In heating mode the outdoor coil runs colder than the air, so moisture freezes on the fins. Every so often the heat pump reverses for a few minutes to melt it, often with a whoosh and a cloud of steam. Heavy ice that never clears means the defrost cycle is failing. Common causes are a bad defrost sensor or board, a stopped outdoor fan, low refrigerant or melt water refreezing under the unit. City & Suburban repairs all makes and models. Ken D. wrote in an Apr 2026 Google review: "Rob quickly diagnosed the problem, explained what was needed"

What is the difference between auxiliary heat and emergency heat?

Auxiliary heat switches on by itself. The thermostat calls for it when the heat pump needs help, such as during defrost or a deep cold snap. Emergency heat is a manual setting that shuts the heat pump off and runs only the backup. Both usually run electric heat strips, which cost much more to run than the heat pump. The fix for aux heat that never stops can be a weak outdoor unit or a staging setting. City & Suburban offers upfront pricing with no hidden fees. Lena H. wrote in a Jan 2026 Google review: "C&S Heating look for solutions to fix vs selling you unnecessary spare parts."

Can a stuck reversing valve be repaired?

Often, yes. The reversing valve sends refrigerant one way for heating and the other way for cooling. Many failures sit in the electric solenoid coil on the valve, which is a quick part swap. A valve body that sticks needs a bigger heat pump repair. The refrigerant is recovered, a new valve is brazed in, the system is pulled into a vacuum and the charge is weighed back in. On an older system, that cost is weighed against replacement. City & Suburban repairs all makes and models. Doug S. wrote in an Apr 2022 Google review: "He told me he had to change out one part to get it up and running again"

Is emergency heat pump repair available at night in Chicago?

Yes. City & Suburban answers heating and cooling calls 24 hours a day, 7 days a week. A heat pump that quits on a January night is worth a call. Emergency Heat often keeps the house warm until morning. A unit that trips its breaker twice, smells of burning or smokes needs the power left off. Members of a City & Suburban maintenance plan get priority dispatch. Mohammad N. wrote in an Aug 2026 Google review: "They scheduled me for the following morning and gave me advice on what to do in the meantime."

How should a heat pump contractor size a system for a Chicago house?

Sizing starts with the house, not the label on the old unit. A heat pump installation quote should rest on a heat loss calculation covering walls, windows, insulation, air leaks and the coldest expected night. A brick two-flat and a frame bungalow lose heat very differently. An oversized heat pump short cycles and leaves summer air clammy. An undersized one leans on backup heat all winter. The quote should also list the model's output at low outdoor temperatures. City & Suburban puts the exact price in writing before work starts, and a sound quote lists equipment and backup heat so homeowners can compare quotes line by line.

Can a heat pump work with the existing gas furnace?

Yes. A dual-fuel system pairs a heat pump with a gas furnace. The heat pump heats on mild and moderately cold days, and the furnace takes over below a set outdoor temperature. The same heat pump handles summer cooling, so one outdoor unit does both jobs. Many Chicago homes already have the ducts for this. The Cook County Assessor counts 335,769 Chicago houses and small residential buildings heated by a warm-air furnace. City & Suburban installs American Standard heat pumps paired with matching furnaces, and the installer sets the switchover point for the house. The full story of dual-fuel heating has its own guide.

Does heat pump installation need new ducts or a bigger electrical panel?

Sometimes. A ducted heat pump moves more air than many older furnaces did, so small or leaky ducts can hold it back. The estimate should check duct size and static pressure before the equipment is chosen. All-electric systems with heat strips also draw heavy current, and an older 60 or 100 amp service may need an electrician. The Cook County Assessor counts 98,849 Chicago houses and small residential buildings heated by hot water or steam, with no ducts at all. Those homes often suit a ductless mini-split better. City & Suburban puts the exact price in writing before work starts, so duct and electrical needs are not surprises.

What does heat pump installation cost in Chicago?

No two installs price the same, so City & Suburban quotes after seeing the house. City of Chicago permit data for the 24 months to August 2026 shows 150 permits mentioning heat pump work. The median declared value was $25,200, for whole projects, some with duct or electrical work riding along. The main drivers are capacity, cold-weather rating, backup heat, ducts, wiring and where the outdoor unit sits. A sound installation quote states whether a City permit applies and who pulls it. Utility rebate programs change often, so the quote should also name any program the equipment qualifies for. City & Suburban states the exact price in writing, with no hidden fees. Wells Fargo Home Projects financing is available, subject to credit approval.

When is heat pump replacement better than another repair?

Age, the failed part and the refrigerant decide most cases. A heat pump runs in summer and winter, so it often wears out sooner than a furnace, commonly at 10 to 15 years. A failed compressor on a heat pump past that age rarely justifies the repair. R-22 systems rely on a refrigerant that is no longer produced. City & Suburban repairs first where repair is right and recommends replacement only when the evidence supports it. To delay that day, a spring and fall check of the coil, defrost controls, charge and filter is the usual interval. Seasonal heat pump maintenance covers those checks, and City & Suburban maintenance plans include seasonal check-ups.

Can a geothermal heat pump be repaired like an air-source one?

Largely, yes. A geothermal heat pump shares the core parts of an air-source unit: compressor, blower, reversing valve, controls and a refrigerant circuit. Faults in those parts are found and fixed much the same way. The buried ground loop is different. Loop leaks, flushing and drilling are specialist work, so the loop needs its own plan. Indoor units commonly last 20 years or more, and ground loops far longer, which makes repair the usual answer when one indoor part fails. City & Suburban repairs all makes and models and diagnoses before quoting; the household should call to confirm a geothermal unit before booking.

Which heat pump brands does City & Suburban install and repair?

City & Suburban installs American Standard heat pumps, air handlers and matching furnaces for dual-fuel systems. Repairs are not limited to that brand. The company repairs all makes and models, including heat pumps put in by other contractors years ago. An older heat pump of another brand gets the same diagnosis first and a written repair price. The rest of the company's heating services follow the same rule. Emily B. wrote in a Dec 2025 Google review: "Terrific guy and great team for repair and installation."

Why does a heat pump act up after a new smart thermostat?

Heat pump thermostats need settings that furnace thermostats do not. The O/B setting tells the reversing valve which mode means heating, and the wrong choice runs the system backward. Aux heat staging and outdoor lockout temperatures decide when the backup heat strips step in. A smart thermostat set up with furnace settings often blows cool air on heat or leans hard on aux heat. The technician checks thermostat wiring and setup before any part is ordered, since fixing a setting costs far less than replacing a part that was never broken. City & Suburban holds a BBB A+ rating and a 4.98 average across 204 Google reviews.

Heat pump acting up? Book a repair today.

Call or text with what the heat pump is doing. A City & Suburban technician finds the fault, then puts the repair or replacement price in writing before work.

City & Suburban Heating & Cooling service van