AC Repair in Jefferson County, MO
AC blowing warm air or not turning on? Ricotta provides air conditioner diagnostics and repair across Jefferson County and South St. Louis County. Call today.

Honest AC Repair Across St. Louis & Jefferson County
Most AC failures come down to a handful of issues — a failed capacitor, low refrigerant from a slow leak, a worn contactor, a clogged drain, a tired blower motor, or a thermostat that's lost its mind. Ricotta diagnoses what's actually wrong before quoting parts, so you're not paying for guesses.
If your system is older and the repair bill is creeping up, we'll lay out the math on repair vs. replace honestly. No scare tactics, no pressure — just the real picture so you can decide.
- Same-day diagnostics on most calls
- Repairs across all major AC brands
- Clear options — repair, replace, or wait
- No high-pressure upsells
- Local family-owned, 50+ years
What's Included
Refrigerant Leak Diagnosis
Locate and repair leaks before recharging — recharging without a fix wastes your money.
Capacitor & Contactor Replacement
The most common AC failures, fixed quickly with quality parts.
Compressor Diagnostics
Honest assessment of compressor condition before recommending major work.
Blower Motor Repair
Restore proper airflow when your fan is weak, noisy, or not running.
Frozen Coil Troubleshooting
Identify the root cause — airflow, refrigerant, or drainage — not just the symptom.
Thermostat Issues
Diagnose wiring, calibration, or replacement on smart and traditional thermostats.
How Service Works
No mystery, no pressure — just a straightforward path from problem to comfort.
- 01
Tell Us What's Happening
Call or request a free estimate online — we'll listen first.
- 02
On-Site Diagnosis
A local technician inspects your equipment and confirms the issue.
- 03
Clear Options
Honest recommendations: repair, replace, or wait. You decide.
- 04
Comfort Restored
We complete the work cleanly and verify everything runs right.
Air Conditioning Repair Frequently Asked Questions
Why is my air conditioner blowing warm air?
Does Ricotta provide AC repair throughout Jefferson County?
What happens during an AC repair appointment?
Can Ricotta help if my AC stops cooling completely?
What Homeowners Say
“Honest, clean, professional work. Walked me through what was actually wrong, didn't try to upsell me.”
From Hillsboro to Clayton, We Help Homes Stay Comfortable
Ricotta serves homeowners across Jefferson County and St. Louis County — from Hillsboro and Festus up through Arnold, Fenton, Kirkwood, Webster Groves, and Clayton. Family-owned, locally based, and ready to help when your home needs it.
See All Service Areas
Request a Free HVAC Estimate
Tell us a bit about your home and we'll get back quickly with next steps.
Skip the Guesswork. Hire Ricotta.
Get a family-owned Hillsboro HVAC company that has fixed furnaces and AC systems across Jefferson County and South St. Louis County since 1974. Free estimates, honest recommendations and same-day appointments when available.
- ✓ Family-owned since 1974
- ✓ Licensed & insured
- ✓ Free estimates
- ✓ Highly rated on Google
