Best HVAC companies in Gaithersburg, MD
The highest-scoring HVAC company in and near Gaithersburg is GAC Services (score 90, 4.9 stars from 7,927 Google reviews). 21 companies meet the 5 Star standard within about 16 miles.
- 1
GAC Services
GAC Services is a family-owned and operated HVAC, plumbing, and electrical company that has served Maryland since 1970. The company works with residential and commercial customers in Gaithersburg and across Montgomery…
Emergency serviceFinancing available90SCORE - 279SCORE
- 379SCORE
- 476SCORE
- 5
Metro Services HVAC
Emergency serviceFinancing available76SCORE - 674SCORE
- 773SCORE
- 872SCORE
- 972SCORE
- 1072SCORE
- 1171SCORE
- 1270SCORE
- 1369SCORE
- 1466SCORE
- 1565SCORE
- 1663SCORE
- 1762SCORE
- 1862SCORE
- 19
Shemtov Systems Heating & Air Conditioning
InsuredFamily-ownedFree estimatesEmergency service62SCORE - 2062SCORE
- 2161SCORE
We list only companies that clear our published bar, so this area is still filling in. As more HVAC companies near Gaithersburg qualify, they'll appear here automatically.
Compare the top 10
| # | Company | Score | Google rating | Reviews | Years | Based in |
|---|---|---|---|---|---|---|
| 1 | GAC Services | 90 | 4.9 | 7,927 | 56 | Gaithersburg |
| 2 | B&B Air Conditioning & Heating Service | 79 | 4.9 | 823 | – | Rockville |
| 3 | NARFIX HEATING AND AIR CONDITIONING LLC | 79 | 5.0 | 315 | – | Silver Spring |
| 4 | Glenmont Heating & Air Conditioning | 76 | 4.9 | 499 | – | Rockville |
| 5 | Metro Services HVAC | 76 | 4.9 | 421 | 7 | Gaithersburg |
| 6 | F.H. Furr Plumbing, Heating, Air Conditioning & Electrical | 74 | 4.7 | 6,914 | – | Rockville |
| 7 | Castro Electrical Services | 73 | 4.8 | 487 | – | Rockville |
| 8 | Cyprus Air Heating, Cooling and Fireplaces | 72 | 4.7 | 1,596 | – | Rockville |
| 9 | Vito Services | 72 | 4.7 | 1,535 | – | Rockville |
| 10 | One Hour Air Conditioning & Heating® | 72 | 4.8 | 387 | – | Rockville |
HVAC companies in Gaithersburg: quick answers
Who is the highest-rated HVAC company in Gaithersburg, MD?
GAC Services has the highest 5 Star Score among HVAC companies in and near Gaithersburg: 90 out of 100, with a 4.9 star Google rating from 7,927 reviews.
How many 5 Star HVAC companies serve Gaithersburg?
21 HVAC companies meet our standard within about 16 miles of Gaithersburg: at least a 4.5 star rating, 20 or more reviews and a score of 60 or higher. The top 21 have 31,855 Google reviews between them, averaging 4.84 stars.
How are these HVAC companies ranked?
By 5 Star Score: rating quality adjusted for review count (45 points), review volume (25), review recency (15), years in business (10) and license verification (5). Businesses cannot pay to change their score.
HVAC companies near Gaithersburg
- Rockville, MD (43)
- Laurel, MD (83)
- Washington, DC (75)
- Fairfax, VA (38)
- Alexandria, VA (65)
- Baltimore, MD (70)
- Annapolis, MD (35)
Other pros in Gaithersburg
- Plumbers (19)
- Electricians (12)
- Roofers (6)
- Garage door companies (14)
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Ratings and review counts come from each company's public Google listing and are re-checked monthly. 5 Star Home Service Pros is independent; companies cannot pay for placement.