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Emergency HVAC Contractors in Chattanooga, TN (2026)

Top 50 of 162 HVAC contractors, in emergency orderUpdated 0 paid placements in this rankingHow we rank

25 of the 50 HVAC contractors on this list post 24/7 hours. 24/7 businesses come first, then same-day, each ranked by CR Score with availability weighted higher.

If you smell gas, leave the building now and call your gas utility or 911 from outside.

The short answer

  1. 1

    #1 for emergency heating and cooling in Chattanooga: Metro Plumbing, Heating & Air, open 24/7.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

Top emergency HVAC contractors in Chattanooga at a glance

Top emergency HVAC contractors in Chattanooga at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Metro Plumbing, Heating & Air684.8★ (4,285)Chattanooga24/7
2Hiller Plumbing, Heating, Cooling & Electrical674.9★ (1,215)Chattanooga24/7
3Patriot Services674.8★ (1,538)Chattanooga24/7
4Malone Heat & Air664.8★ (1,194)Chattanooga24/7
5Metro Plumbing, Heating & Air665.0★ (600)Chattanooga24/7
6North Georgia Heating & Air of Chattanooga654.8★ (685)Chattanooga24/7
7Lee Company654.9★ (500)Chattanooga24/7
8Lee Company654.7★ (696)Chattanooga24/7
9Scenic City Heating and AC654.8★ (403)Chattanooga24/7
10North Georgia Heating & Air of Hixson645.0★ (169)Chattanooga24/7

Call an emergency HVAC contractor in Chattanooga now

24/7 hours mean the business says its phone is answered around the clock. Arrival time depends on where the crew is. Ask for an arrival window when you call.

The 50 emergency HVAC contractors in Chattanooga, ranked

24/7 first, then same-day service, then the rest. Each group is in CR Score order on emergency weights. The full ranking of all 162 is on the HVAC contractors page.

Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.

  3. #3 Patriot Services

    Based in Chattanooga

    67/100CR Score

    Ranked #3 because of its Google rating and trade focus: 4.8★ from 1,538 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 1,538 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    6113 Airways Blvd #105, Chattanooga, TN 37421
    View profile for Patriot Services(423) 922-7360

  4. #4 Malone Heat & Air

    Based in Chattanooga

    66/100CR Score

    Ranked #4 because of its Google rating and trade focus: 4.8★ from 1,194 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 1,194 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2021 Watauga St, Chattanooga, TN 37404
    View profile for Malone Heat & Air(423) 624-6647

  7. #7 Lee Company

    Based in Chattanooga

    65/100CR Score

    Ranked #7 because of its Google rating and trade focus: 4.9★ from 500 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 500 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2801 Dodds Ave Suite D, Chattanooga, TN 37407
    View profile for Lee Company(423) 567-8877

  8. #8 Lee Company

    Based in Chattanooga

    65/100CR Score

    Ranked #8 because of its Google rating and trade focus: 4.7★ from 696 Google reviews, listed on Google as “HVAC contractor”.

    • 4.7★ from 696 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    7308 Shallowford Rd, Chattanooga, TN 37421
    View profile for Lee Company(423) 567-8877

  11. #11 Ryan Heating and Air

    Based in Chattanooga

    64/100CR Score

    Ranked #11 because of its Google rating and trade focus: 4.9★ from 195 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 195 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    3222 Parker Ln, 3311 Center St, Chattanooga, TN 37419
    View profile for Ryan Heating and Air(423) 903-5955

  12. #12 Air Comfort HVAC

    Based in Fairview, 9 mi away

    63/100CR Score

    Ranked #12 because of its Google rating and trade focus: 4.9★ from 390 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 390 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    11 Commerce Dr, Ringgold, GA 30736
    View profile for Air Comfort HVAC(706) 952-4197

  16. #16 Titan Heating & Air

    Based in Chattanooga

    62/100CR Score

    Ranked #16 because of its Google rating and trade focus: 4.6★ from 79 Google reviews, listed on Google as “HVAC contractor”.

    • 4.6★ from 79 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    105 Newberry St E, Chattanooga, TN 37415
    View profile for Titan Heating & Air(423) 875-0086

  18. #18 Keith Heating & Air

    Based in Fairview, 6 mi away

    61/100CR Score

    Ranked #18 because of its Google rating and trade focus: 4.7★ from 152 Google reviews, listed on Google as “HVAC contractor”.

    • 4.7★ from 152 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    445 Schmitt Rd, Rossville, GA 30741
    View profile for Keith Heating & Air(706) 861-2630

  21. #21 G & L Services

    Based in Chattanooga

    61/100CR Score

    Ranked #21 because of its Google rating and trade focus: 4.6★ from 36 Google reviews, listed on Google as “HVAC contractor”.

    • 4.6★ from 36 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    45 Stubby Ln, Ringgold, GA 30736
    View profile for G & L Services(423) 242-8257

  23. #23 Stans Air Systems

    Based in Chattanooga

    60/100CR Score

    Ranked #23 because of its Google rating and trade focus: 4.4★ from 33 Google reviews, listed on Google as “Air conditioning contractor”.

    • 4.4★ from 33 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    4050 Amnicola Hwy, Chattanooga, TN 37406
    View profile for Stans Air Systems(423) 698-8999

  24. #24 HVAC Rescue

    Based in Chattanooga

    60/100CR Score

    Ranked #24 because of its Google rating and trade focus: 4.8★ from 21 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 21 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for HVAC Rescue(423) 812-0022

Top 50 of 162 HVAC contractors by emergency score

#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile.

HVAC contractors in Chattanooga, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Ascend Air Solutions605.0★ (15)In Chattanooga
27Maximum Heating And Air604.2★ (32)In Chattanooga
28DynaMech Heating, Cooling, Electrical & Plumbing605.0★ (527)23 mi
29Expert Services Appliance Heating & Air LLC604.7★ (383)18 mi
30Chattanooga Heating & Air Conditioning, Inc.593.9★ (25)In Chattanooga
31One Source Heating, Cooling, Plumbing & Electrical594.6★ (40)6 mi
32Chattanooga Heating & Air Conditioning594.5★ (13)In Chattanooga
33Howard Heating & Air Inc594.8★ (21)5 mi
34Eco Home Solutions, Inc.584.9★ (186)23 mi
35North Georgia Heating & Air of Rossville584.8★ (16)7 mi
36Lemus HVAC & Mechanical583.4★ (5)In Chattanooga
37PrimeTemp HVAC Repair Hixson585.0★ (17)11 mi
38Streamline HVAC573.9★ (7)4 mi
39Northside Heating & Air Conditioning, LLC575.0★ (377)In Chattanooga
40TN Heating & Cooling575.0★ (60)22 mi
41Hep is on the way564.7★ (666)10 mi
42Oasis Heating and Air555.0★ (16)20 mi
43HEP is on the way554.9★ (1,696)25 mi
44Chase Plumbing & Mechanical, Inc.543.9★ (49)In Chattanooga
45Chase Service, LLC534.1★ (21)In Chattanooga
46Conditionaire Co Inc524.9★ (32)In Chattanooga
47Chattanooga Plumbing and Drain Services514.5★ (23)10 mi
48Associated Equipment Co504.9★ (12)In Chattanooga
49Commercial Air Solutions504.4★ (17)In Chattanooga
50Latitude Heating & Air Inc.505.0★ (13)3 mi

How we ranked emergency HVAC contractors in Chattanooga

Emergency lists move 10 points of the CR Score from reputation to availability: 15% and 15%. Availability credits 24/7 hours, same-day service, weekend hours and weekly open hours. 24/7 HVAC contractors are listed first, then same-day, then the rest; ranks follow that order. Paid placement never changes a rank.

Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed from
Reputation15%Google star rating, adjusted for how many reviews back it
Credentials15%Active state license, bond and workers’ comp on file
Review volume10%Number of Google reviews, compared with the most-reviewed business on the list
Recency5%Share of reviews from the last 12 months
Availability15%Weekly open hours, Saturday, Sunday, 24/7 or same-day
Trade focus10%How clearly the business does this trade (its Google category and name)
Proximity5%Based in the city scores highest, less the farther away it is
Claimed profile10%The business has claimed its ContractorsRanked profile (free or paid earn the same)
Partnered5%The business links to ContractorsRanked from its own website with our badge, checked periodically
ContractorsRanked reviews10%Verified customer reviews collected by ContractorsRanked: their rating and how many there are

Emergency HVAC contractors in Chattanooga: questions

Which HVAC contractors in Chattanooga are open 24/7?

25 on this list post 24/7 hours, including Metro Plumbing, Heating & Air, Hiller Plumbing, Heating, Cooling & Electrical, Patriot Services, Malone Heat & Air and Metro Plumbing, Heating & Air.

Who is ranked #1 for emergency heating and cooling in Chattanooga, TN?

Metro Plumbing, Heating & Air is #1, with a CR Score of 68 out of 100 on emergency weights.

How are emergency HVAC contractors in Chattanooga ranked?

Emergency lists move 10 points of the CR Score from reputation to availability: 15% and 15%. Availability credits 24/7 hours, same-day service, weekend hours and weekly open hours. 24/7 HVAC contractors are listed first, then same-day, then the rest; ranks follow that order. Paid placement never changes a rank.

What should I do before the HVAC contractor arrives?

If you smell gas, leave the building now and call your gas utility or 911 from outside.

How many emergency HVAC contractors here list a phone number?

24 of the 25 businesses ranked in full list a phone number. Tap Call to dial it.

Update log for Chattanooga

  1. October 2026: CR Scores recalculated for 162 hvac contractors serving Chattanooga.
  2. October 2026: 1 duplicate listing merged.

More emergency and heating and cooling pages