Heat Pump Repair in Mount Prospect, IL
Most Mount Prospect homes went up in the 1950s, long before central air was standard. Expect $275 to $765 for most heat pump repairs, priced flat before work starts.
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Need Heat Pump Repair in Mount Prospect?
Fast, honest heat pump repair from a family-owned team based in Streamwood.
- $75 diagnostic, waived when you approve the repair
- 24/7 emergency service, with same-day appointments available
- Trucks stocked with common heat pump parts like capacitors, contactors and defrost sensors, so most repairs are done in one visit
- Upfront, flat-rate pricing before any work starts
Time for a New Heat Pump in Mount Prospect?
Free in-home replacement estimates from a Lennox Premier Dealer.
- Good, Better and Best options with upfront pricing
- ComEd rebates applied where you qualify
- Financing available, including 0% APR on select Lennox systems during Lennox promotions
- Sized with a load calculation, installed and permitted
Quick Summary
Pure Comfort Heating and Cooling repairs ducted and ductless heat pumps in Mount Prospect, IL (60056) from our shop in Streamwood, about 25 minutes away. As of November 2026, common heat pump repairs cost $275 to $765 flat-rate with parts and labor: capacitors $275 to $348, defrost sensors $340 and defrost control boards $765, while a reversing valve is $1,470. The $75 diagnostic ($99 evenings, weekends and holidays) is waived when you approve the repair, and maintenance plan members save 10 to 15%. Call (708) 515-4822.
Reviewed by Gene Baldassano, owner and NATE- and EPA 608-certified HVAC technician since 2008 · Updated
Heat Pump Trouble in Mount Prospect Homes
A heat pump in Mount Prospect has to handle humid summers and cold winters, and dual-fuel systems hand off to a gas furnace when it gets too cold. We check that handoff, the defrost cycle and the thermostat setup along with the outdoor unit, because many no-heat calls are really a control or backup heat problem, not a failed heat pump.
Step by Step: Heat Pump Repair in Mount Prospect
First we confirm power and the thermostat signal. Then we test the outdoor unit: capacitor, contactor, fan motor and compressor. In heating season, we check the defrost sensor and board and whether the reversing valve shifts. Refrigerant comes last, measured by superheat and subcooling. You approve the price before we start.
Fix It or Replace It? Mount Prospect Heat Pumps
Heat pumps here typically last 12 to 15 years. If yours is younger and the problem is electrical or a defrost control, repair it. If it is older and needs a compressor, coil or reversing valve, compare it with a new system first. Remaining warranty can change the answer, so we check it.
Related Services in Mount Prospect
Services Mount Prospect homeowners book with us.
Heat Pump Repair Cost in Mount Prospect, IL
Most heat pump repairs in Mount Prospect cost $275 to $765, flat-rate with parts and labor. Capacitors and contactors are at the low end, and defrost sensors and boards are in the middle. Reversing valves ($1,470) and compressors ($2,935) cost more. The $75 diagnostic is waived when you approve the repair.
| Repair | Typical price | Common symptom |
|---|---|---|
| Capacitor | $275 to $348 | Outdoor fan or compressor hums but will not start |
| Contactor | $330 to $398 | Outdoor unit will not turn on, or will not shut off |
| Defrost sensor | $340 | Heavy ice that does not clear in winter |
| Crankcase heater | $355 | Hard compressor starts in cold weather |
| Defrost control board | $765 | No defrost, or the unit stays in defrost |
| Refrigerant charge check | $125 | Weak heating or cooling |
| Refrigerant, per pound | R-410A $165, R-454B $245 | Low charge; discounted when more than one pound is needed |
| Leak search and nitrogen pressure test | $610 | Charge keeps dropping |
| TXV (metering device) | $1,250 | Poor capacity, frosting, high superheat |
| Reversing valve | $1,470 | Stuck in heating or cooling |
| Compressor | $2,935 | Compressor failed or grounded |
| Diagnostic | $75 ($99 evenings, weekends and holidays) | Waived when you approve the repair |
We review permit needs and any extra work for each project. On the hottest and coldest days demand spikes, so arrival windows are typical rather than guaranteed.
Why Mount Prospect Families Trust Pure Comfort
Pure Comfort has served Mount Prospect from Streamwood since 2008.
Family-run in Streamwood
Local since 2008, from a shop in Streamwood, and still family-owned and operated.
In-house technicians
The technician at your door works for Pure Comfort. We do not hand jobs to subcontractors.
Licensed and certified
NATE-certified and EPA 608-certified technicians, backed by full licensing and insurance.
All brands repaired
Lennox Premier Dealer standing, and we fix heat pumps other companies installed.
Every repair is tested in the mode that failed, then in the other mode, before we close the job.
Heat Pump Not Keeping Up?
Ice that will not clear, cold air in heat mode or a unit that never shuts off all have a cause. We will find it.
Feedback From Homeowners We Serve
These are reviews from homeowners in and around Mount Prospect.
What homeowners near Mount Prospect say
“I was able to get a same day diagnostic for some back drafting I was having with my water heater. Gene was great. Friendly, honest and thorough as we discussed 3 different options and I was emailed estimates the same day.”
Water heater diagnostic
“Jose took care of the maintenance of our furnace in a timely and professional manner. Thank you very much.”
Furnace maintenance
“Nick and Gene are thoroughly knowledgeable and capable of the job required. They were very respectful and helpful in everything they said and did. Because of the work that they did at my home and their character and customer service make Pure Comfort shine as a company to trust.”
Service visit
When you need HVAC due to an unexpected event you want someone who not only can provide the service you need….
Great service. Very professional. They try all avenues to resolve issues with equipment. Always a pleasure to work….
Had an issue with the thermostat reading erroneously, as soon as I contacted Pure Comfort, they got back….
Our serviceman, Gene, was very responsive, professional and thorough. He explained each aspect of the issue clearly and….
I called them at 7am with no heat, the only available spot they had was in the afternoon, 5 minutes later they called….
Gene was professional, on-time, very friendly and did a thorough job inspecting our A/C unit. He also checked….
Quick and honest service and advice last minute on a Sunday. Clean crew and equipment. Gene was a knowledgeable….
Gene did not give up on the problem. It was a crazy situation but he never gave up found the problem and fixed it. Thank you….
Furnace wasnt working. Called Pure Comfort after hours and they came right out and helped me. The furnace….
Very professional, definitely knowledgeable had the furnace fixed in 10 minutes. I can honestly say I trusted Gene….
Heat Pump Repair Close to Mount Prospect
Pure Comfort serves Mount Prospect and nearby communities, including heat pump repair in Arlington Heights, heat pump repair in Des Plaines and heat pump repair in Elk Grove Village.
Drive time: our shop in Streamwood is about 16 miles from Mount Prospect, roughly 25 to 30 minutes away in normal traffic.
Zip codes: we cover Mount Prospect homes in 60056.
Heat pump repair in nearby towns
- Arlington HeightsHeat pump repair
- Des PlainesHeat pump repair
- Rolling MeadowsHeat pump repair
- Elk Grove VillageHeat pump repair
- PalatineHeat pump repair
Near Mount Prospect but not listed? We serve towns within about 20 miles of Streamwood. See all service areas or call (708) 515-4822.
Heat Pump Questions From Mount Prospect
How much does heat pump repair cost in Mount Prospect?
Most heat pump repairs in Mount Prospect cost $275 to $765, flat-rate with parts and labor. A capacitor is $275 to $348, a defrost sensor $340 and a defrost control board $765. The $75 diagnostic ($99 evenings, weekends and holidays) is waived when you approve the repair.
My heat pump runs but the house stays cold. What is wrong?
It could be low refrigerant, a defrost problem, a dirty filter or backup heat that is not staging on. In very cold weather, a heat pump alone may also fall behind, which is what backup heat is for.
Do you cover all of Mount Prospect?
Yes, every Mount Prospect address in 60056. Our shop in Streamwood is about 25 minutes away.
Why does my heat pump steam in winter?
That is usually a normal defrost cycle melting frost off the coil. Heavy ice that does not clear is the problem to call about.
Do you repair heat pumps from other brands and installers?
Yes. We are a Lennox Premier Dealer, but we repair all major heat pump brands, including systems another company installed.
When is a heat pump not worth fixing?
When an older unit needs a compressor ($2,935), keeps leaking refrigerant or never kept the house comfortable. Otherwise, repair is usually the better value.
How often should a heat pump be serviced?
Twice a year is ideal, since it heats and cools. Our maintenance plan covers a tune-up in each season and saves members 10 to 15% on repairs.
Request Heat Pump Service in Mount Prospect
Phones are answered 24/7. Book online or call to get a technician to Mount Prospect.
- You get a scheduled window and the technician's name
- We diagnose and price the work before anything starts
- Replacement estimates are free, with no obligation
Need it fixed today in Mount Prospect? Call (708) 515-4822 rather than using the form.