Top HVAC Repair Companies in Chattanooga
2.Reliable Heating & Air Conditioning Co., Inc.
4.9★ (1,078 reviews)
4.9★ from 1078 reviews
4.North Georgia Heating & Air of Chattanooga
4.8★ (742 reviews)
4.8★ from 742 reviews
6.One Hour Heating & Air Conditioning® of Chattanooga
4.6★ (204 reviews)
4.6★ from 204 reviews
HVAC Repair Cost in Chattanooga
Local ranges, adjusted for area wage and cost-of-living data.
| Service | Typical range in Chattanooga |
|---|---|
| AC repair | $125–$376/job |
| Seasonal tune-up | $63–$167/visit |
| Furnace repair | $125–$418/job |
| AC replacement | $4,175–$10,020/job |
HVAC Repair prices in Chattanooga run about 17% below the national average, based on what this trade earns in the metro area — so neighbouring cities in the same metro see similar rates.
Quotes on this page come from 10 companies serving Chattanooga, rated 4.6★ on average across 4,771 customer reviews.
Chattanooga Climate & Seasonal Timing
What Chattanooga's weather means for scheduling hvac repair.
- Last spring frost
- March 30
- First fall frost
- November 6
- Annual precipitation
- 52.48"
- Heating degree days
- 3,239
- Cooling degree days
- 1,744
| Month | Low | High | Precip |
|---|---|---|---|
| Jan | 30.7° | 50.2° | 4.91" |
| Feb | 34° | 54.8° | 4.84" |
| Mar | 40.7° | 63.7° | 4.98" |
| Apr | 48.3° | 72.7° | 3.99" |
| May | 57.3° | 79.9° | 4.1" |
| Jun | 65.8° | 87.1° | 4.05" |
| Jul | 69.7° | 90.2° | 4.91" |
| Aug | 69.2° | 89.6° | 3.48" |
| Sep | 61.8° | 83.2° | 4.04" |
| Oct | 49.9° | 73.1° | 3.28" |
| Nov | 40.2° | 62.3° | 5" |
| Dec | 33.1° | 52.1° | 4.9" |
NOAA station data 3.52 miles from Chattanooga.
Permits & Regulations in TN
Permit typically required
- HVAC falls under the Mechanical Contracting classification of the Tennessee Board for Licensing Contractors — CMC-C covers HVAC, refrigeration and gas piping
- A contractor license is required once the HVAC portion of a project reaches $25,000 including materials, equipment and labor
- Tennessee does not license individual HVAC technicians; they work under a licensed mechanical contractor
License required: Tennessee CMC-C mechanical contractor license (projects $25,000+)
Sources: www.tn.gov
HVAC Repair FAQs for Chattanooga
How much does AC repair cost in Chattanooga?
AC repair in Chattanooga typically runs $125-$376 per job.
When should I service my AC in Chattanooga?
Chattanooga averages 1,744 cooling degree days a year, so most systems get a tune-up before the first sustained heat rather than during it.
Do I need a permit for HVAC work in Chattanooga, TN?
In TN, HVAC falls under the Mechanical Contracting classification of the Tennessee Board for Licensing Contractors — CMC-C covers HVAC, refrigeration and gas piping. Verify with the Chattanooga building department before equipment is replaced.
How many HVAC companies serve Chattanooga?
We track 10 HVAC professionals serving Chattanooga.
How hard does Chattanooga heat work an air conditioner?
Summer highs near 90F in Chattanooga mean systems run long cycles for months, which is what drives the compressor and capacitor failures common here.
Does Chattanooga need heating as well as cooling?
With 3,239 heating degree days against 1,744 cooling degree days, Chattanooga homes need both, and sizing for one alone leaves the other uncomfortable.
Is HVAC service in Chattanooga more expensive than the national average?
HVAC work in Chattanooga runs about -16.5% versus the national average.
When should I switch to heat in Chattanooga?
Most Chattanooga homes need heat by the first frost around November 6, and winter lows near 31F set how hard it has to work.
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