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Common HVAC repairs in Louisville
- Heat pump not cooling on humid summer days — low refrigerant, frozen coil, or failing capacitor.
- Furnace short-cycling in winter — dirty flame sensor, oversized equipment, or thermostat miscalibration.
- AC blowing warm air — condenser-fan failure, tripped high-pressure switch, or refrigerant leak.
- Uneven temperatures room-to-room — failing zone damper, duct leakage, or blower-motor issue.
- Loud banging, squealing, or grinding from the air handler — bearings, belt, or blower-wheel imbalance.
- Thermostat shows the right setpoint but the system won't start — control board, transformer, or wiring fault.
- Water pooling at the air handler — clogged condensate drain or cracked pan.
- Frozen evaporator coil that keeps icing over — airflow restriction or low charge.
Ranked shortlist
Request quotes →- installationrepairemergency
What customers say “I recently had new HVAC units installed by Jarboe’s and couldn't be happier with the experience! Even though I wasn't…”
- Absolute ServicesTop ratedinstallationrepairinspectionemergency
What customers say “Thank you Brad and Absolute Services. Brad arrived on time, was easy to talk with to make sure we were on the same page…”
- A+ Derr Heating & CoolingTop rated
What customers say “We had been without heat for several days before contacting A+ Derr. Brad came out to look at our system and was very…”
- One Choice MechanicalTop rated
What customers say “Chris was great! He called with a heads up of when he would arrive and was right on schedule. He explained what he was…”
- Aire Serv of LouisvilleTop rated
What customers say “Thomas came to give us an estimate on a new heat/air unit. After considering several issues we decided Aire Serv was…”
- Allgeier AirTop ratedinstallationrepairemergency
What customers say “Based on positive recommendations from members of my neighborhood I reached out to The Fire Place, part of Allegeier,…”
- Elder Heating and AirTop rated
What customers say “A few weekends ago when the snow was still around and temps were low… my heat decided to go out again for the 3rd time…”
- Chapman Heating and CoolingTop rated
What customers say “Our whole house humidifier was not working and we called Chapman Heating to check on it. Our technician, Michael,…”
Repair vs replace: quick decision tree
- Age > 15 years — Expect diminishing returns on any single repair. Start pricing replacement in parallel, especially if a second failure in the last 24 months.
- Repair cost > 50% of replacement — A $2,500 repair on an $8,000 system rarely pencils. Run the 5-year math: repair cost + likely follow-on failures vs new-system financing.
- Uses obsolete refrigerant (R-22) — R-22 is phased out; refills are both expensive and short-lived. Replacement is almost always the right call.
- Failed a major component (compressor, heat exchanger) — These are “the system”. A compressor on a 12-year-old condenser is a replacement signal, not a repair.
Typical repair cost range
Derived from local HVAC benchmarks in Louisville. Most repair tickets fall well below full-system pricing — expect simple swaps (capacitor, ignitor, thermostat) at the low end and major component replacements (blower motor, control board, compressor) at the high end.
Estimate your Louisville repair
Pick the repair type and your system's age for a ballpark range. Real quotes vary by part availability and diagnosis — use this as a sanity check before approving work.
Frequently Asked Questions
How long does a typical HVAC repair take in Louisville?
Most diagnoses take 30–60 minutes on site. Small repairs (capacitor swap, thermostat, ignitor) finish the same visit. Parts-on-order repairs can push the job 1–5 business days depending on supplier stock.
Do repairs come with a warranty?
Labor warranties of 30–90 days are common; parts usually carry the manufacturer's warranty (1–10 years). Always get the warranty terms in writing on the invoice before the tech leaves.
How do I avoid common repair scams?
Red flags: no written estimate before work starts, refrigerant refill with no leak search, blanket recommendation to replace without an inspection, or very high "after-hours" pricing on a non-emergency call. Two written quotes for any repair over $600 is the fastest sanity check.
When should I replace instead of repair?
When the repair estimate exceeds 50% of a new system, or the unit is past 15 years, or it uses obsolete refrigerant (R-22), replacement usually wins the 5-year math. Otherwise repair is almost always the better call.
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Licensing data: Kentucky Department of Housing, Buildings and Construction (HBC) — Division of HVAC · Company data: verified business records + Google Business profile
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