65/100CR Score
Ranked #1 because of its Google rating and review volume: 4.9★ from 5,835 Google reviews.
- 4.9★ from 5,835 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 644 E Mcintosh Rd, Griffin, GA 30223
Emergency HVAC Contractors in McDonough, GA (2026)
Top 50 of 274 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 for emergency heating and cooling in McDonough: Hammond Services, 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 McDonough at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours |
|---|---|---|---|---|---|
| 1 | Hammond Services | 65 | 4.9★ (5,835) | Griffin, 13 mi away | 24/7 |
| 2 | Absolute Best Air Inc. | 64 | 4.8★ (416) | McDonough | 24/7 |
| 3 | Hammond Services | Heating & Air, Plumbing, Electrical | 64 | 5.0★ (895) | Stockbridge, 10 mi away | 24/7 |
| 4 | Jones Climate Control | 63 | 4.9★ (506) | Stockbridge, 6 mi away | 24/7 |
| 5 | Reliable Heating & Air, Plumbing and Electrical - Fayetteville | 63 | 4.8★ (4,184) | Fayetteville, 17 mi away | 24/7 |
| 6 | Premier Heating & Air | 62 | 4.8★ (1,334) | Conyers, 16 mi away | 24/7 |
| 7 | Peachtree Service Experts | 61 | 4.8★ (605) | Morrow, 14 mi away | 24/7 |
| 8 | Reynaud HVAC Contractors | 61 | 4.9★ (180) | Stockbridge, 10 mi away | 24/7 |
| 9 | Reliance Heating and Air | 60 | 4.9★ (489) | Conyers, 18 mi away | 24/7 |
| 10 | Walk On Air | 60 | 5.0★ (335) | Fayetteville, 18 mi away | 24/7 |
Call an emergency HVAC contractor in McDonough 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.
- #1Call (770) 756-8915
Open 24/7 · 4.9 from 5,835 Google reviews
- #2Call (404) 849-1938
Open 24/7 · 4.8 from 416 Google reviews
- #3Call (770) 927-8444
#3Hammond Services | Heating & Air, Plumbing, Electrical
Open 24/7 · 5.0 from 895 Google reviews
- #4Call (678) 210-3851
Open 24/7 · 4.9 from 506 Google reviews
- #5Call (678) 540-5214
#5Reliable Heating & Air, Plumbing and Electrical - Fayetteville
Open 24/7 · 4.8 from 4,184 Google reviews
- #6Call (770) 241-5675
Open 24/7 · 4.8 from 1,334 Google reviews
- #7Call (770) 458-0181
Open 24/7 · 4.8 from 605 Google reviews
- #8Call (770) 389-4996
Open 24/7 · 4.9 from 180 Google reviews
The 50 emergency HVAC contractors in McDonough, 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 274 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.
Based in McDonough
64/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.8★ from 416 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 416 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 165 McDonough Pkwy, McDonough, GA 30253
Based in Stockbridge, 10 mi away
64/100CR ScoreRanked #3 because of its Google rating and trade focus: 5.0★ from 895 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 895 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 615 GA-138, Stockbridge, GA 30281
Based in Stockbridge, 6 mi away
63/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.9★ from 506 Google reviews, listed on Google as “Furnace repair service”.
- 4.9★ from 506 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3230 GA-42 #H, Stockbridge, GA 30281
Based in Fayetteville, 17 mi away
63/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.8★ from 4,184 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 4,184 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1940 GA-85, Fayetteville, GA 30214
Based in Conyers, 16 mi away
62/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.8★ from 1,334 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 1,334 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1395 Business Center Dr SW, Conyers, GA 30094
Based in Morrow, 14 mi away
61/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.8★ from 605 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 605 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1286 Citizens Pkwy Ste G, Morrow, GA 30260
Based in Stockbridge, 10 mi away
61/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.9★ from 180 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 180 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3588 Hwy 138 SE, Stockbridge, GA 30281
Based in Conyers, 18 mi away
60/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.9★ from 489 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 489 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1694 GA-138, Conyers, GA 30013
#10 Walk On Air
Based in Fayetteville, 18 mi away
60/100CR ScoreRanked #10 because of its Google rating and trade focus: 5.0★ from 335 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 335 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 500 W Lanier Ave Ste 706, Fayetteville, GA 30214
Based in Covington, 21 mi away
60/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.9★ from 497 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 497 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 10121 US-278, Covington, GA 30014
Based in Riverdale, 13 mi away
59/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.9★ from 98 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 98 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 8614 Tara Blvd, Jonesboro, GA 30238
Based in Fayetteville, 18 mi away
59/100CR ScoreRanked #13 because of its Google rating and trade focus: 5.0★ from 175 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 175 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 320 W Lanier Ave Suite 200, Fayetteville, GA 30214
Based in Conyers, 16 mi away
59/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.9★ from 137 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 137 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1955 Flat Shoals Rd SE, Conyers, GA 30013
Based in Conyers, 16 mi away
59/100CR ScoreRanked #15 because of its Google rating and trade focus: 5.0★ from 100 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 100 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1752 Ridge Ct SE, Conyers, GA 30013
Based in Union City, 21 mi away
59/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.9★ from 252 Google reviews, listed on Google as “Heating contractor”.
- 4.9★ from 252 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Stockbridge, 7 mi away
59/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.8★ from 24 Google reviews, listed on Google as “Air conditioning contractor”.
- 4.8★ from 24 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Fayetteville, 17 mi away
59/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.9★ from 124 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 124 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 125 Beacon Dr, Fayetteville, GA 30215
Based in Candler-McAfee, 22 mi away
58/100CR ScoreRanked #19 because of its Google rating and trade focus: 5.0★ from 212 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 212 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Decatur, 22 mi away
58/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.9★ from 237 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 237 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1471 Richard Rd Suite C, Decatur, GA 30032
Based in Stockbridge, 10 mi away
58/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 26 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 26 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3588 Hwy 138 SE Suite 409, Stockbridge, GA 30281
Based in Morrow, 14 mi away
58/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.9★ from 45 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 45 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Riverdale, 15 mi away
58/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.3★ from 179 Google reviews, listed on Google as “HVAC contractor”.
- 4.3★ from 179 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
#24 D & S Plumbing
Based in Locust Grove, 5 mi away
58/100CR ScoreRanked #24 because of its Google rating and review volume: 4.9★ from 682 Google reviews.
- 4.9★ from 682 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 83 Pine Grove Rd, Locust Grove, GA 30248
Based in Stonecrest, 17 mi away
57/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.7★ from 85 Google reviews, listed on Google as “HVAC contractor”.
- 4.7★ from 85 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3090 Lions Club Ln, Stonecrest, GA 30038
Top 50 of 274 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.
How we ranked emergency HVAC contractors in McDonough
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.
| Factor | Weight | Computed from |
|---|---|---|
| Reputation | 15% | Google star rating, adjusted for how many reviews back it |
| Credentials | 15% | Active state license, bond and workers’ comp on file |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list |
| Recency | 5% | Share of reviews from the last 12 months |
| Availability | 15% | Weekly open hours, Saturday, Sunday, 24/7 or same-day |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) |
| Proximity | 5% | Based in the city scores highest, less the farther away it is |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are |
Emergency HVAC contractors in McDonough: questions
Which HVAC contractors in McDonough are open 24/7?
25 on this list post 24/7 hours, including Hammond Services, Absolute Best Air Inc., Hammond Services | Heating & Air, Plumbing, Electrical, Jones Climate Control and Reliable Heating & Air, Plumbing and Electrical - Fayetteville.
Who is ranked #1 for emergency heating and cooling in McDonough, GA?
Hammond Services is #1, with a CR Score of 65 out of 100 on emergency weights.
How are emergency HVAC contractors in McDonough 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 McDonough
- October 2026: CR Scores recalculated for 274 hvac contractors serving McDonough.
- October 2026: 1 duplicate listing merged.