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Heating & AC Repair in Eureka, MO
Furnace or AC trouble in Eureka, MO? HVAC repairs, maintenance and system replacement estimates. Call or text (314) 324-0085.

Heating and cooling service for Eureka, MO — from the older streets near downtown out to the newer builds off Six Flags Road and Allenton. Family-owned, with techs who'll tell you when a repair makes more sense than a replacement.
Eureka Homes Are Not One-Size-Fits-All
Eureka spans 100-year-old downtown homes with retrofitted ductwork, large 2000s subdivisions with two-zone systems, and newer construction with high-efficiency variable-speed equipment. Each calls for a different diagnostic playbook — the variable-speed boards in particular need a tech who knows how to read the fault codes instead of just swapping parts.
Furnace Repair & Heating Service in Eureka
Downtown out to the newer builds off Six Flags Road and Allenton — 100-year-old retrofits, 2000s two-zone systems, and newer variable-speed equipment all in a week's work.
A furnace that will not start, blows cool air, or cycles repeatedly needs a diagnosis before parts are replaced. Ricotta checks the thermostat, ignition, flame sensor, blower and airflow to identify the fault and explain repair options. For aging equipment, compare repair with replacement based on condition, comfort and cost—not sales pressure.
Diagnostics on existing equipment carry a service call fee; estimates for system replacement are free. Call for current availability if your Eureka home has no heat.
Signs You Need AC Repair in Eureka
- Vents blowing warm or room-temperature air
- Weak airflow even with the system running
- Short cycling (turns on and off rapidly)
- Energy bills climbing without a change in usage
- Rattling, hissing, or grinding noises
- Musty or burning odors when the AC runs
- Water pooling or ice forming around the unit
What We Check on an AC Service Call
- Refrigerant charge and leaks
- Capacitor and contactor
- Evaporator and condenser coils
- Condensate drain
- Filter and airflow
- Thermostat calibration
- Electrical connections
Most cooling failures trace back to one of these — we diagnose the real fault before quoting, so you're not paying for parts you don't need.
HVAC Services for Eureka Homes
Furnace repair, air conditioning service, maintenance, heat pumps and indoor air quality support Eureka homeowners year-round.
Why Eureka Homeowners Choose Ricotta
Three generations, same family, since 1974. Google customer reviews. We service every major AC and furnace brand, give free estimates with upfront pricing, and get most no-cool and no-heat calls scheduled the same week.
Downtown out to the newer builds off Six Flags Road and Allenton — 100-year-old retrofits, 2000s two-zone systems, and newer variable-speed equipment all in a week's work.
Verified Google review excerpts
What Eureka Area Homeowners Say
“Dependable and reliable, he’ll always be my go to.”
“Always professional and very prompt with service.”
Eureka HVAC Questions
Do you work on the newer variable-speed and communicating systems common in Eureka?
How much does AC repair cost in Eureka?
How quickly can you provide AC repair in Eureka?
My AC is blowing warm air — can you fix it?
Should I repair or replace my AC?
What AC brands do you service in Eureka?
Nearby Areas We Serve
Same crew, same pricing, same free estimates throughout St. Louis County.
Request a Free HVAC Estimate
Tell us a bit about your home and we'll get back quickly with next steps.
Need AC Repair in Eureka?
Call Ricotta Heating & Air or request a free estimate online — we'll get your Eureka home cool again the same week.
