My Creve Coeur home was built in the 1960s â€” what furnace issues should I expect?

Mid-century Creve Coeur homes often have older single-stage furnaces that may be approaching or past their expected service life of 15â€“25 years. Common issues include cracked heat exchangers, failed draft inducers, worn igniter assemblies, and deteriorating flue systems. If your furnace is more than 20 years old and showing symptoms, a full inspection is a smart investment. Call us at (636) 397-3200 to schedule.

Furnace Repair in Creve Coeur, MO | All Brands

Q: How do I know if my furnace heat exchanger is cracked?

Signs of a cracked heat exchanger include a strong smell of combustion gases when the blower runs, soot marks near the furnace, visible stress cracks on the heat exchanger surface, or a carbon monoxide detector alert. Cracked heat exchangers are a safety hazard â€” especially in older Creve Coeur homes with furnaces from the 1970s or 1980s. If you suspect one, turn off the furnace and call AAA Home Services at (636) 397-3200 immediately for an inspection.

Q: What should I do if my furnace stops working in Creve Coeur on a cold night?

First, check that your thermostat is set to heat and the filter isn't clogged â€” a restricted filter can cause a furnace to shut down on a high-limit trip. Then check the circuit breaker and make sure the furnace power switch is on. If those don't resolve it, call us at (636) 397-3200. We serve Creve Coeur with priority dispatch and will work to get a technician to your home as quickly as possible.

Furnace Repair for Every Creve Coeur Home

Creve Coeur's housing stock tells the story of western St. Louis County's development across seven decades. The mid-century ranch homes and two-stories built along Conway Road, Ladue Road, and the neighborhoods surrounding Creve Coeur Lake in the 1950s through 1970s frequently have older single-stage natural gas furnaces some original to construction or replaced only once. These aging systems require experienced technicians who understand the components, the common failure modes, and when a repair is the right call versus a replacement.

Newer construction in Creve Coeur including upscale builds and renovated properties near Olive Boulevard often features high-efficiency two-stage or modulating furnaces with variable-speed ECM blower motors and communicating controls. These systems provide exceptional efficiency and comfort but require a different diagnostic approach when something goes wrong.

When Creve Coeur homeowners call us about no heat, the most common causes we find are hot surface igniter failures, pressure switch faults from inducer issues, dirty flame sensors, and in older homes cracked heat exchangers. We diagnose all of them and give you an honest assessment of your options.

As an American Standard Platinum Dealer, we can replace aging systems when repair is no longer cost-effective. But unlike many home service companies, our technicians do not work on commission so there's no financial incentive to push a replacement when repair is the right call.

Heat Exchanger Safety Important for Creve Coeur's Older Homes

Furnaces in homes built in the 1960s and 1970s common throughout Creve Coeur's established neighborhoods can be 30 to 50+ years old if they're original or have only been replaced once. 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 you notice a persistent smell of combustion when the blower runs, or your CO detector has triggered, turn off the furnace and call us at (636) 397-3200 before running the system again.

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 Creve Coeur's mid-century 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 sized for your Creve Coeur home.

Igniter & Flame Sensor Service

Hot surface igniter replacement and flame sensor cleaning among the most common causes of no-heat calls we see in Creve Coeur.

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 & Smart Controls Service

Smart thermostat installation and zoned system troubleshooting for Creve Coeur homes with communicating HVAC systems or multi-zone setups.

Serving the St. Louis area since 1965 decades of experience with the full range of furnace technology found across Creve Coeur'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.
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 St. Louis and St. Charles 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.

Furnace Repair in Creve Coeur, MO

AAA's Home Base Since 1970