Furnace Repair in Chesterfield, MO
Gas and electric furnace repair for all Chesterfield homes from older single-stage systems to modern high-efficiency equipment. Upfront pricing, non-commissioned techs. Serving the area since 1965.
60+
Years Serving St. Louis
4.9
5,000+ Google Reviews
All Brands
Serviced
Same-Day
Service Available

Furnace Repair for Every Chesterfield Home
Chesterfield's housing stock spans more than five decades of furnace technology. Pre-1990 homes along the Kehrs Mill Road and Wild Horse Creek corridors frequently have older single-stage natural gas furnaces some original to construction that are approaching the end of their service life. Meanwhile, the wave of construction that reshaped Chesterfield Valley after the 1993 flood brought a generation of mid-efficiency 80 AFUE systems, many now due for heat exchanger inspections and controls work.
In high-end newer builds throughout 63017, you'll find two-stage and modulating furnaces paired with variable-speed ECM blower motors and communicating thermostats. These systems deliver exceptional comfort and efficiency but they require technicians who understand how communicating controls, pressure sensors, and gas valves interact. Our team has that experience.
Chesterfield is a natural gas service area, so propane-specific issues are rarely the culprit here. When homeowners call us about no heat, the causes we find most frequently are igniter failures, pressure switch faults, dirty flame sensors, inducer motor issues, and particularly in older homes cracked heat exchangers. We diagnose all of them.
As an American Standard Platinum Dealer, we can replace aging systems with top-tier high-efficiency equipment when repair is no longer cost-effective. But we always present your options honestly unlike many home service companies, our technicians do not work on commission, so there's no financial incentive to push a replacement when a repair is the right call.
Heat Exchanger Safety Important for Chesterfield's Older Homes
Furnaces in homes built in the 1970s and 1980s common in Wild Horse Creek and Wildhorse Creek Estates may be 20 to 30+ years old. At that age, heat exchanger failure is a genuine safety concern. A cracked heat exchanger can allow combustion gases, including carbon monoxide, to enter your living space. If your furnace is older and you notice a persistent smell of combustion when the blower runs, or your CO detector has triggered, call us at (636) 397-3200 before running the system again.
Zoned HVAC Troubleshooting
- Annual precision tune-up: coil cleaning, refrigerant check, electrical inspection, and efficiency calibration to prevent summer breakdowns.
Common Furnace Warning Signs in Chesterfield
- No heat or system not reaching thermostat setpoint
- Furnace cycles on then shuts off after a few minutes (short-cycling)
- Blower runs but no heat comes from registers
- Unusual smells combustion odor, burning dust at season startup, or sulfur
- Yellow or flickering pilot flame (should be steady blue)
- Carbon monoxide detector alert in the home
- Increased gas bills without a change in usage
Furnace Services We Provide in Chesterfield, MO
- Furnace Repair All Brands
Fast diagnosis of no-heat calls, igniter failures, pressure switch faults, flame sensor issues, and control board problems on all major brands.
- Heat Exchanger Inspection
Thorough inspection of primary and secondary heat exchangers on aging systems critical safety service for Chesterfield's older homes.
- Furnace Tune-Up & Safety Check
Annual maintenance that cleans, calibrates, and safety-checks your furnace before winter reducing the risk of a cold-night breakdown.
- Furnace Installation & Replacement
Proper load calculation, equipment selection, and installation of high-efficiency two-stage or modulating furnaces for Chesterfield's larger homes.
- Igniter & Flame Sensor Service
Hot surface igniter replacement and flame sensor cleaning two of the most common causes of no-heat calls we see across Chesterfield.
- Inducer & Blower Motor Repair
Inducer motor failures trigger pressure switch lockouts. We diagnose and replace failed draft inducers and ECM blower motors on all systems.
- Gas Valve & Control Board Replacement
Electronic control board failures and faulty gas valves repaired or replaced with OEM and quality aftermarket parts stocked on our service trucks.
- Thermostat & Zoning System Service
Smart thermostat installation and zoned system troubleshooting including communicating system controls in high-efficiency Chesterfield homes.
Why Chesterfield Homeowners Choose AAA Home Services
- Serving the St. Louis area since 1965 we have decades of experience with the full range of furnace technology found across Chesterfield's diverse housing stock.
- Non-commissioned technicians unlike many home service companies, our techs do not work on commission. When we recommend a repair or a replacement, it's because it's the right answer not because of how it affects their paycheck.
- American Standard Platinum Dealer when replacement is the right call, we have access to top-tier equipment and manufacturer-backed warranties.
- 4.9-star Google rating hundreds of verified reviews from Chesterfield and St. Louis County homeowners.
- Upfront pricing you see the price before we start. No surprises on the invoice.
- All brands serviced Carrier, Trane, Lennox, Rheem, Goodman, American Standard, Bryant, York, Amana, and more.
Chesterfield Neighborhoods We Serve
We dispatch to all of Chesterfield 63017, including Wild Horse Creek, Kehrs Mill, Chesterfield Valley, Olive Blvd corridor, Wildhorse Creek Estates, and surrounding areas of western St. Louis County.
Frequently Asked Questions Furnace Repair in Chesterfield, MO
How do I know if my furnace heat exchanger is cracked?
Signs include a strong smell of combustion gases when the blower runs, soot marks near the furnace, or a carbon monoxide detector alert. Cracked heat exchangers are a safety hazard. If you suspect one, turn off the furnace and call us at (636) 397-3200 immediately for an inspection.
Do you repair high-efficiency two-stage and modulating furnaces in Chesterfield?
Yes. Many newer Chesterfield homes particularly those built in Chesterfield Valley after 1993 use high-efficiency two-stage or modulating furnaces with variable-speed blowers and communicating controls. Our technicians are trained on these systems and carry parts for major brands including Carrier, Trane, Lennox, and American Standard.
What should I do if my furnace stops working in Chesterfield on a cold night?
First, check that your thermostat is set to heat and the filter isn't clogged a restricted filter can cause a furnace to shut down on a high-limit trip. Then call us at (636) 397-3200. We serve Chesterfield with priority dispatch and will work to get a technician to your home as quickly as possible.









