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AC Repair & Furnace Repair in Affton, MO
AC and furnace repair for Affton homes, serving Jefferson County and South St. Louis County · family-owned since 1974 · (314) 333-5900

Need AC service or HVAC repair in Affton, MO? Ricotta Heating & Air has worked South County's brick ranches and post-war bungalows for 50 years — Gravois, Heege, Mackenzie, and the Affton school district streets in between. Same-week AC repair, firm pricing before we start, free replacement estimates. Call (314) 324-0085.
Affton's Mid-Century Ranches All Share the Same Problems
The 1950s brick ranches that define Affton were built with undersized return-air ductwork and a single central return in the hallway. Drop a modern high-static furnace into that ductwork and the blower will short-cycle for the next 15 years. We add returns, we right-size, and we get these homes genuinely comfortable instead of just colder.
The other two calls we run constantly in Affton: condensate drains clogging in tight basement closets where the AC sits inches from the water heater, and 20-year-old condensers crammed against a fence line on the small lots off Weber and Heege — no clearance, no airflow, and a compressor running hot every July. Both are cheap fixes when caught early, and both are why we check clearance and drainage on every Affton service call.
Affton Neighborhoods & Corridors We Cover
- Gravois Ave corridor
- Heege Rd
- Mackenzie Rd
- Weber Rd
- Affton school district
- Tesson Ferry side
- Laclede Station Rd
Signs You Need AC Repair in Affton
- 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 Affton Homes
Furnace repair, air conditioning service, maintenance, heat pumps and indoor air quality support Affton homeowners year-round.
Why Affton Homeowners Call Ricotta First
Ricotta Heating & Air is a family-owned Hillsboro business serving local homeowners since 1974. For Affton service, call to confirm coverage and appointment availability. We inspect the actual equipment and airflow before discussing repair or replacement options.
The 1950s brick ranches and post-war bungalows along Gravois and Heege all share undersized return-air ductwork — usually the real fix isn't bigger equipment, it's adding a return.
Verified Google review excerpts
What Affton Area Homeowners Say
“Dependable and reliable, he’ll always be my go to.”
“Always professional and very prompt with service.”
Affton HVAC Questions
My Affton ranch has hot bedrooms in summer — is that fixable?
How fast can you get to an AC repair in Affton, MO?
What does AC service cost in Affton?
How much does AC repair cost in Affton?
How quickly can you provide AC repair in Affton?
My AC is blowing warm air — can you fix it?
Nearby Areas We Serve
Same crew, same pricing, same free estimates throughout South St. Louis County.
Request a Free HVAC Estimate
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Need AC Repair in Affton?
Call Ricotta Heating & Air or request a free estimate online — we'll get your Affton home cool again the same week.
- ✓ Family-owned since 1974
- ✓ Licensed & insured
- ✓ Free estimates
- ✓ Highly rated on Google
