AC Repair in Chattanooga, TN
Air conditioner blowing warm, tripping the breaker, or dripping water into the hallway? We connect you with a vetted Chattanooga technician, usually the same day.
In Chattanooga, the most common summer AC repair is a failed capacitor, which typically costs $170-330 including parts and labour and takes under an hour.
A diagnostic visit in the Chattanooga area runs $80-150 and is commonly waived when the repair is carried out on the same visit.
Calls are answered 24 hours a day across Chattanooga, Hixson, Red Bank, East Ridge, Signal Mountain, Ooltewah, Soddy-Daisy and Collegedale.
Why AC fails differently in the Tennessee Valley
Most advice about air conditioning is written for dry climates and quietly misleads people here. Chattanooga sits in a river valley where summer humidity regularly runs above 70 percent, and that changes which parts fail and why.
Your air conditioner is not only a cooler, it is a dehumidifier. Warm indoor air passes over a cold evaporator coil, moisture condenses out of it, and that water drains away through a pipe. In a humid valley the system pulls out gallons of water a day, which is why the failures we see most in Chattanooga are water failures rather than heat failures: clogged condensate drains, overflowing pans, frozen coils and mould in ductwork.
- Water pooling near the indoor unit, which usually means a blocked condensate drain
- Ice on the copper line even in July, because humid air freezes onto a starved coil
- A house that feels cold and clammy at once, which points at a system too large to dehumidify
- A musty smell when the system starts, which means moisture is sitting somewhere it should not
The four calls we get most
- Running but not cooling - the outdoor unit hums, air comes out of the vents, but it is not cold. Usually a capacitor, a contactor, or low refrigerant.
- Will not turn on at all - often a tripped breaker, a clogged drain that triggered the safety float switch, or a failed thermostat.
- Ice on the copper line - a frozen evaporator coil. Turning it off and letting it thaw is genuinely the right first move.
- Water on the floor or a ceiling stain - a blocked condensate drain. Cheap to fix now, expensive after it soaks a ceiling.
The oversized-system trap
This one is worth knowing before anyone sells you a bigger unit. A system that is too large for the house cools the air fast and then shuts off, which sounds efficient but means it never runs long enough to pull moisture out. The result is a house that feels cold and clammy at the same time, with condensation on vents and a musty smell.
In Chattanooga that matters more than in most places, because the comfort problem here is humidity as much as temperature. If a contractor recommends going up a size or two without measuring anything, ask them to explain how it will dehumidify.
Areas we cover
- Chattanooga
- Hixson
- Red Bank
- East Ridge
- Signal Mountain
- Ooltewah
- Soddy-Daisy
- Collegedale
Do not sit in a hot house.
Tell us what the system is doing and we will match you with a vetted Chattanooga technician, usually the same day. No charge for the match, no obligation.
Or call (423) 872-2841
Common questions
Why is my AC running but not cooling?
In Chattanooga the most common cause is a failed run capacitor, but check the filter first - restricted airflow across a coil in this humidity produces weak cooling and then a frozen coil.
How long does an air conditioner last?
Manufacturers quote 15 to 20 years and well-maintained systems can reach 20 to 25. In Chattanooga's humidity the thing that shortens it most is neglected condensate drainage, not the compressor.
How fast can someone get here during a heat wave?
In normal conditions most Chattanooga and Hixson calls are reached within 2-4 hours. During a heat advisory every HVAC company in the valley is saturated, and same-day becomes next-day. Households with elderly residents or infants should say so when they call, because that changes the dispatch order.
Is it worth repairing a system that is 15 years old?
It depends which part failed. A $170-330 capacitor on a 15-year-old system is still worth doing. A $1,400-2,900 compressor on the same system usually is not, because you are spending a quarter of a replacement on a unit near the end of its life.
Do I need to be home for an AC repair?
Yes. The technician needs access to both the indoor air handler and the outdoor condenser, and someone has to authorise the work after the diagnosis.