Heat Pump Repair in St. Charles, IL
Most St. Expect $275 to $765 for most heat pump repairs, priced flat before work starts.
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Need Heat Pump Repair in St. Charles?
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 St. Charles?
Free in-home replacement estimates from a Lennox Premier Dealer.
- Good, Better and Best options with upfront pricing
- St. Charles electric utility 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 St. Charles, IL (60174 and 60175) from our shop in Streamwood. 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
Why St. Charles Heat Pumps Stop Heating or Cooling
A heat pump in St. Charles 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.
Our Heat Pump Repair Process in St. Charles
A heat pump combines refrigeration, airflow, electrical parts and controls, so we test the whole system. The thermostat, reversing valve, defrost operation, sensors, motors and refrigerant all get checked before we name the failed part. Trucks carry common parts for most brands.
Fix It or Replace It? St. Charles Heat Pumps
We weigh the repair price against the age, refrigerant and history of the system. An isolated failure on a heat pump with a good record is usually worth repairing. A major refrigerant repair on an aging unit usually is not. You get both options in writing.
Heating and Cooling Services in St. Charles
Related work we do across St. Charles.
What Heat Pump Repair Costs in St. Charles
Most bills land between $275 and $765. Contactors are $330 to $398 and capacitors $275 to $348. Refrigerant is priced per pound: R-410A $165 and R-454B $245, discounted when more than one pound is needed.
| 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 St. Charles Families Trust Pure Comfort
Straight answers, written prices and repairs done right the first time.
Local, not a franchise
A Streamwood family business since 2008, not a franchise or a private-equity rollup.
No subcontractors
Every repair is done by our own employees, never passed to an outside crew.
NATE and EPA certified
Technicians carry NATE and EPA 608 certifications, and the company is licensed and insured.
Lennox Premier Dealer status
Lennox Premier Dealer standing, and we fix heat pumps other companies installed.
Each St. Charles heat pump repair ends with a check in heating and cooling mode, so the fix is confirmed before we leave.
Heat Pump Iced Up or Blowing Cold?
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
Real Google reviews from homeowners near St. Charles.
What St. Charles homeowners say
“Gene and his crew did an excellent job installing a new furnace and air conditioner system. I recommend Pure Comfort in a heartbeat. 6 stars in my opinion.”
Furnace and AC installation
“We recently had Pure Comfort replace our furnace and air conditioner, and we couldn’t be happier with the experience. Their team was exceptionally knowledgeable and professional throughout the entire process.”
Furnace and AC replacement
“Great service and great techs! Pricing was good. Techs arrived at the time quoted. I will use only Pure Comfort anytime I need heat or AC service.”
Service visit
“Fantastic service! Friendly people! Very thorough with their work. Would recommend them to anyone!”
Service visit
“Very satisfied with Pure Comfort. Vince is a very knowledgeable technician.”
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 in Towns Near St. Charles
Pure Comfort serves St. Charles from our base in Streamwood, along with nearby South Elgin, West Chicago, Geneva and Wayne.
Drive time: our shop in Streamwood is about 12 miles from St. Charles, roughly 20 to 25 minutes away in normal traffic.
Zip codes: we cover St. Charles homes in 60174 and 60175.
Heat pump repair in nearby towns
- WayneHeat pump repair
- BataviaHeat pump repair
- South ElginHeat pump repair
- West ChicagoHeat pump repair
- BartlettHeat pump repair
Near St. Charles but not listed? We serve towns within about 20 miles of Streamwood. See all service areas or call (708) 515-4822.
St. Charles Heat Pump Repair: Questions and Answers
How much is a heat pump service call in St. Charles?
The diagnostic is $75, or $99 evenings, weekends and holidays, and it is waived when you approve the repair. Most repairs that follow cost $275 to $765.
Why does my heat pump blow lukewarm air?
Heat pumps deliver lower supply temperatures than furnaces, so lukewarm air can be normal. Air that feels cold, or a house that will not reach the setpoint, needs a diagnosis.
Can I get same-day heat pump repair in St. Charles?
Often, yes. Phones are answered 24/7, and we are about 20 minutes away in Streamwood.
What should I do if my heat pump is frozen?
Switch to emergency or auxiliary heat so the outdoor unit can thaw, check the filter and call for service. Do not chip the ice off the coil.
Can you fix my Carrier, Trane or Mitsubishi heat pump?
Yes. We service all major ducted and ductless heat pump brands.
How long does a heat pump last?
Usually 12 to 15 years here, since it runs in both heating and cooling seasons. Yearly maintenance helps it reach the high end.
Can a tune-up prevent heat pump repairs?
It catches weak capacitors, dirty coils and drain problems early, which prevents many breakdowns.
Get Your St. Charles Heat Pump Fixed
Phones are answered 24/7. Book online or call to get a technician to St. Charles.
- 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
For the quickest St. Charles appointment, call (708) 515-4822. The form is checked during business hours.