65/100CR Score
Ranked #1 because of its Google rating and review volume: 4.9★ from 5,835 Google reviews, the most in McDonough.
- 4.9★ from 5,835 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 644 E Mcintosh Rd, Griffin, GA 30223
Best HVAC Contractors in McDonough, GA (2026)
274 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in McDonough: Hammond Services, CR Score 65/100; 4.9★ from 5,835 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Absolute Best Air Inc., posts 24/7 hours; ranked #2 of 274.
- 14
Most-reviewed: Estes Services, 4,617 Google reviews at 4.9★, the most of 274 ranked after Hammond Services; ranked #14.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
274 McDonough HVAC contractors are ranked here by CR Score, from ten published factors. 73 are open 24/7, 191 open Saturdays and 107 open Sundays, based on posted hours. The median Google rating is 4.9★ across 274 rated businesses.
Top 10 HVAC contractors in McDonough at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Hammond Services | 65 | 4.9★ (5,835) | Griffin, 13 mi away | 24/7 | Overall |
| 2 | Absolute Best Air Inc. | 64 | 4.8★ (416) | McDonough | 24/7 | Emergencies |
| 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 | 61 | 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 | Harding Plumbing, Heating & Cooling | 61 | 4.9★ (1,002) | McDonough | — | — |
| 10 | Reliance Heating and Air | 60 | 4.9★ (489) | Conyers, 18 mi away | 24/7 | — |
The 274 best HVAC contractors in McDonough, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
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
61/100CR 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 McDonough
61/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.9★ from 1,002 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 1,002 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 63 Keys Ferry St, McDonough, GA 30253
Based in Conyers, 18 mi away
60/100CR ScoreRanked #10 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
#11 Walk On Air
Based in Fayetteville, 18 mi away
60/100CR ScoreRanked #11 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 McDonough
60/100CR ScoreRanked #12 because of its Google rating and trade focus: 5.0★ from 131 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 131 Google reviews
- Hours
- Mon–Fri 7 AM–7 PM · Sat 9 AM–2 PM · Sun closed
- Address
- 635 Iris Lake Rd, McDonough, GA 30252
Based in McDonough
60/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.9★ from 174 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 174 Google reviews
- Hours
- Mon–Fri 7:30 AM–6 PM · Sat 8 AM–1 PM · Sun closed
- Address
- 2495 McGarity Rd Suite B, McDonough, GA 30252
#14 Estes Services
Based in Atlanta, 20 mi away
60/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.9★ from 4,617 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 4,617 Google reviews
- Hours
- Mon–Fri 7 AM–10 PM · Sat 8 AM–4 PM · Sun closed
- Address
- 3981 Tradeport Blvd, Atlanta, GA 30354
Based in Fayetteville, 17 mi away
60/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.9★ from 914 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 914 Google reviews
- Hours
- Mon–Sun 7 AM–8:30 PM
- Address
- 105 Industrial Wy, Fayetteville, GA 30215
#16 R&A Cooling
Based in McDonough
59/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.8★ from 191 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 191 Google reviews
- Hours
- Mon–Fri 7 AM–5 PM · Sat 7 AM–12 PM · Sun closed
- Address
- 922 Hwy 81 Suite 242, McDonough, GA 30253
Based in Covington, 21 mi away
59/100CR ScoreRanked #17 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 Conyers, 16 mi away
59/100CR ScoreRanked #18 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 Riverdale, 13 mi away
59/100CR ScoreRanked #19 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 Conyers, 16 mi away
59/100CR ScoreRanked #20 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 Griffin, 11 mi away
59/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.9★ from 1,478 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 1,478 Google reviews
- Hours
- Mon–Fri 7:30 AM–6 PM · Sat–Sun closed
- Address
- 2159 GA-42, Jenkinsburg, GA 30234
Based in Candler-McAfee, 22 mi away
58/100CR ScoreRanked #22 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 Union City, 21 mi away
58/100CR ScoreRanked #23 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 Decatur, 22 mi away
58/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.9★ from 760 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 760 Google reviews
- Hours
- Mon–Thu 7 AM–7 PM · Fri 7 AM–7:30 PM · Sat–Sun 7 AM–7 PM
- Address
- 1343 Renee Dr, Decatur, GA 30035
Based in McDonough
58/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.9★ from 56 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 56 Google reviews
- Hours
- Mon–Fri 7 AM–7 PM · Sat 8 AM–2 PM · Sun closed
- Address
- 382 Whitney Ln, McDonough, GA 30253
HVAC contractors ranked #26 to #50
#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 274 ranked HVAC contractors here; the rest are on their profiles.
Also serving McDonough
20 more HVAC contractors within 25 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| All Air | 4.8★ (51) | 19 mi |
| C.B's Heating and Air Conditioning, LLC. | 4.8★ (38) | 25 mi |
| Colonial Inc | 5.0★ (2) | 14 mi |
| Cooling Parts Southeast | 4.0★ (2) | 19 mi |
| Diaz's Air | 2.5★ (2) | 15 mi |
| Heating and Air Conditioning Repair | 5.0★ (32) | 23 mi |
| Hoke Air Conditioning And Heating Service | 5.0★ (11) | 19 mi |
| Home Protection Bureau | 4.5★ (2) | In McDonough |
| Hue Reliable Services LLC | 5.0★ (2) | 16 mi |
| HVAC GUY! | 5.0★ (3) | 11 mi |
| Infinity Heating & Cooling | 4.8★ (25) | 21 mi |
| LBC Service | 3.0★ (2) | 18 mi |
| Legacy HVAC Services | 5.0★ (5) | 7 mi |
| Masters Pro Heating & Cooling | 5.0★ (8) | 13 mi |
| Redwood Home Solutions | 3.0★ (2) | 21 mi |
| Reliable Maintenance Appliances & HVAC | 4.4★ (7) | 12 mi |
| Royal Emergency AC Repair Jonesboro | 4.0★ (8) | 12 mi |
| Southern Comfort Heating and Air Conditioning INC. | 4.0★ (20) | 16 mi |
| Stephens & McRae Mechanical LLC | 4.2★ (5) | 12 mi |
| Ur Heating & Air and Handyman Services | 3.0★ (2) | 20 mi |
How much do HVAC contractors cost in McDonough?
National price ranges in USD, not adjusted for McDonough. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| AC replacement | $3,887 | $5,978 | $8,073 | Per system, installed (unit plus labor); typical range of customer-reported jobs. US national range | October 2026 |
| Furnace replacement | $2,823 | $4,814 | $6,896 | Per system, installed; typical range of customer-reported jobs. US national range | October 2026 |
How to check an HVAC contractor's license in Georgia
In Georgia, Georgia State Construction Industry Licensing Board licenses Conditioned air contractor licenses (Division of Conditioned Air Contractors).
- Search the business name or license number on the Georgia State Construction Industry Licensing Board license lookup.
- Check that the status is active and the name matches the contract or truck.
- Ask for proof of insurance before work starts.
No chip usually means we have not matched a state record yet. Check the lookup yourself before you hire.
Guide checked October 2026. How we verify licenses
When to hire an HVAC contractor in Georgia
In Georgia, air conditioning calls peak in the hottest summer months. Spring is the easiest time to book a tune-up or replacement, before the first heat wave.
How we ranked McDonough HVAC contractors
We scored 274 McDonough HVAC contractors on ten factors, weighted as shown. A business is ranked when its trade is confirmed and it has 3 or more Google reviews or a claimed profile. A business with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, not counted as zero. Scores last refreshed October 22, 2026.
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 | In McDonough data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Credentials | 15% | Active state license, bond and workers’ comp on file | Not yet collected |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list | Measured |
| Recency | 5% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically | Measured |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are | Measured |
HVAC contractors in McDonough: frequently asked questions
Who is the best HVAC contractor in McDonough?
By CR Score, the highest-ranked HVAC contractor in McDonough, GA is Hammond Services with a CR Score of 65/100. It has 4.9★ from 5,835 Google reviews. It is open 24/7. Absolute Best Air Inc. (#2) and Hammond Services | Heating & Air, Plumbing, Electrical (#3) follow. We ranked 274 HVAC contractors on ten factors, last updated October 22, 2026.
How many HVAC contractors are there in McDonough?
ContractorsRanked ranks 274 HVAC contractors serving McDonough, GA. 8 of them are based in McDonough; the rest serve it from nearby towns. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.
Which HVAC contractors in McDonough are open 24/7?
73 ranked HVAC contractors in McDonough post 24/7 hours. The highest-ranked are Hammond Services (#1), Absolute Best Air Inc. (#2) and Hammond Services | Heating & Air, Plumbing, Electrical (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which HVAC contractors in McDonough work on weekends?
191 of 274 ranked HVAC contractors post Saturday hours and 107 post Sunday hours. The highest-ranked open Saturdays are Hammond Services (#1), Absolute Best Air Inc. (#2) and Hammond Services | Heating & Air, Plumbing, Electrical (#3). Posted hours are office hours; crews may book weekend jobs separately.
How do I check an HVAC contractor's license in Georgia?
In Georgia, Georgia State Construction Industry Licensing Board handles licensing and covers Conditioned air contractor licenses (Division of Conditioned Air Contractors). Search the business or license number at https://verify.sos.ga.gov/verification/.
How much does ac replacement cost in McDonough?
AC replacement typically costs $3,887 to $8,073, with $5,978 typical (Per system, installed (unit plus labor); typical range of customer-reported jobs. US national range). This is a national range, not adjusted for McDonough. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do McDonough HVAC contractors have?
The median Google rating among 274 rated HVAC contractors in McDonough is 4.9★, with a median of 25 reviews. Hammond Services has the most, 5,835 reviews, and ranks #1. We adjust ratings for review count, so a few five-star reviews cannot top the list.
When is the best time to hire an HVAC contractor in McDonough?
In Georgia, air conditioning calls peak in the hottest summer months. Spring is the easiest time to book a tune-up or replacement, before the first heat wave.
Update log for McDonough
- October 2026: CR Scores recalculated for 274 hvac contractors serving McDonough.
- October 2026: 1 duplicate listing merged.
More HVAC contractors and McDonough pages
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- Roofers in McDonough729 ranked
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- Electricians in McDonough199 ranked
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- Kitchen remodelers in McDonough117 ranked
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- Drywall contractors in McDonough7 ranked
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- Fence contractors in McDonough70 ranked
- Deck builders in McDonough95 ranked
- Siding contractors in McDonough221 ranked
- Window installers in McDonough164 ranked
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- Insulation contractors in McDonough35 ranked
- Solar installers in McDonough46 ranked
- Garage door repair companies in McDonough59 ranked
- Foundation repair companies in McDonough88 ranked
- Tree services in McDonough191 ranked
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- All contractors in McDonough