91/100CR Score
Ranked #1 because of its Google rating and availability: 4.8★ from 1,775 Google reviews, open 24/7.
- 4.8★ from 1,775 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 5620 St Barnabas Rd Ste 240, Fort Washington, MD 20744
Best HVAC Contractors in Clinton, MD (2026)
813 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Clinton: United Air Temp, CR Score 91/100; 4.8★ from 1,775 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Michael & Son Services, posts 24/7 hours; ranked #2 of 813.
- 2
Most-reviewed: Michael & Son Services, 15,537 Google reviews at 4.7★, the most of 813 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
813 Clinton HVAC contractors are ranked here by CR Score, from 8 published factors. 271 are open 24/7, 549 open Saturdays and 384 open Sundays, based on posted hours. The median Google rating is 4.9★ across 813 rated businesses.
Top 10 HVAC contractors in Clinton at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | United Air Temp | 91 | 4.8★ (1,775) | Fort Washington, 5 mi away | 24/7 | Overall |
| 2 | Michael & Son Services | 91 | 4.7★ (15,537) | Alexandria, 15 mi away | 24/7 | Emergencies, Most reviews |
| 3 | GW Air Service | 90 | 4.9★ (270) | St. Charles, 1 mi away | 24/7 | — |
| 4 | John C. Flood | 90 | 4.8★ (4,976) | Alexandria, 14 mi away | 24/7 | — |
| 5 | Mission Comfort | 90 | 5.0★ (625) | Waldorf, 10 mi away | 24/7 | — |
| 6 | AZA heating, cooling, plumbing & construction | 90 | 5.0★ (959) | Alexandria, 13 mi away | 24/7 | — |
| 7 | Belair Engineering and Service Company, Inc. | 90 | 4.9★ (1,421) | Greater Upper Marlboro, 12 mi away | 24/7 | — |
| 8 | Krafft Service Corporation | 90 | 4.9★ (1,631) | Alexandria, 13 mi away | 24/7 | — |
| 9 | Fixed Right & Guaranteed Super Techs, LLC | 90 | 5.0★ (1,032) | Rosaryville, 15 mi away | 24/7 | — |
| 10 | Caffi Services | 89 | 4.9★ (508) | Alexandria, 9 mi away | 24/7 | — |
The 813 best HVAC contractors in Clinton, ranked
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Based in Alexandria, 15 mi away
91/100CR ScoreRanked #2 because of its Google rating and review volume: 4.7★ from 15,537 Google reviews, the most Google reviews on this list (15,537).
- 4.7★ from 15,537 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 5740 General Washington Dr, Alexandria, VA 22312
Based in St. Charles, 1 mi away
90/100CR ScoreRanked #3 because of its Google rating and availability: 4.9★ from 270 Google reviews, open 24/7.
- 4.9★ from 270 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Alexandria, 14 mi away
90/100CR ScoreRanked #4 because of its Google rating and availability: 4.8★ from 4,976 Google reviews, open 24/7.
- 4.8★ from 4,976 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 6430 General Green Way, Alexandria, VA 22312
Based in Waldorf, 10 mi away
90/100CR ScoreRanked #5 because of its Google rating and availability: 5.0★ from 625 Google reviews, open 24/7.
- 5.0★ from 625 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 11822 Pika Dr, Waldorf, MD 20602
Based in Alexandria, 13 mi away
90/100CR ScoreRanked #6 because of its Google rating and availability: 5.0★ from 959 Google reviews, open 24/7.
- 5.0★ from 959 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 5800 Quantrell Ave #1510, Alexandria, VA 22312
Based in Greater Upper Marlboro, 12 mi away
90/100CR ScoreRanked #7 because of its Google rating and availability: 4.9★ from 1,421 Google reviews, open 24/7.
- 4.9★ from 1,421 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 15881 Commerce Ct, Upper Marlboro, MD 20774
Based in Alexandria, 13 mi away
90/100CR ScoreRanked #8 because of its Google rating and availability: 4.9★ from 1,631 Google reviews, open 24/7.
- 4.9★ from 1,631 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 5707A Edsall Rd, Alexandria, VA 22304
Based in Rosaryville, 15 mi away
90/100CR ScoreRanked #9 because of its Google rating and availability: 5.0★ from 1,032 Google reviews, open 24/7.
- 5.0★ from 1,032 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2003 Chaneyville Rd, Owings, MD 20736
#10 Caffi Services
Based in Alexandria, 9 mi away
89/100CR ScoreRanked #10 because of its Google rating and availability: 4.9★ from 508 Google reviews, open 24/7.
- 4.9★ from 508 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1313 Powhatan St, Alexandria, VA 22314
#11 CroppMetcalfe
Based in Fairfax, 20 mi away
89/100CR ScoreRanked #11 because of its Google rating and availability: 4.8★ from 7,638 Google reviews, open 24/7.
- 4.8★ from 7,638 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 8421 Hilltop Rd, Fairfax, VA 22031
Based in St. Charles, 12 mi away
89/100CR ScoreRanked #12 because of its Google rating and availability: 4.8★ from 1,234 Google reviews, open 24/7.
- 4.8★ from 1,234 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 4384 Hackett Place, White Plains, MD 20695
Based in Alexandria, 10 mi away
89/100CR ScoreRanked #13 because of its Google rating and availability: 4.9★ from 440 Google reviews, open 24/7.
- 4.9★ from 440 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3045 Colvin St, Alexandria, VA 22314
Based in Lorton, 16 mi away
89/100CR ScoreRanked #14 because of its Google rating and availability: 4.7★ from 4,469 Google reviews, open 24/7.
- 4.7★ from 4,469 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 8560 Cinder Bed Rd Suite 700, Lorton, VA 22079
#15 United Air Temp
Based in Alexandria, 13 mi away
89/100CR ScoreRanked #15 because of its Google rating and availability: 4.8★ from 1,318 Google reviews, open 24/7.
- 4.8★ from 1,318 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 6094 Franconia Rd # B, Alexandria, VA 22310
Based in Fairfax, 19 mi away
88/100CR ScoreRanked #16 because of its Google rating and availability: 4.9★ from 1,794 Google reviews, open 24/7.
- 4.9★ from 1,794 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2800 Juniper St #10, Fairfax, VA 22031
Based in Accokeek, 12 mi away
88/100CR ScoreRanked #17 because of its Google rating and availability: 4.9★ from 426 Google reviews, open 24/7.
- 4.9★ from 426 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 4384 Hackett Place, White Plains, MD 20695
Based in Hyattsville, 12 mi away
88/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.8★ from 8,326 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 8,326 Google reviews
- Hours
- Mon–Sun 8 AM–6 PM
- Address
- 3400 Sharp St, Hyattsville, MD 20785
Based in Alexandria, 11 mi away
88/100CR ScoreRanked #19 because of its Google rating and availability: 4.9★ from 326 Google reviews, open 24/7.
- 4.9★ from 326 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 6404 Telegraph Rd Suite 200, Alexandria, VA 22310
#20 United Air Temp
Based in Greenbelt, 16 mi away
88/100CR ScoreRanked #20 because of its Google rating and availability: 4.8★ from 1,306 Google reviews, open 24/7.
- 4.8★ from 1,306 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 7255 Hanover Pkwy Ste A, Greenbelt, MD 20770
Based in Springfield, 18 mi away
88/100CR ScoreRanked #21 because of its Google rating and availability: 4.9★ from 966 Google reviews, open 24/7.
- 4.9★ from 966 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 7950 Woodruff Ct, Springfield, VA 22151
Based in Silver Spring, 19 mi away
88/100CR ScoreRanked #22 because of its Google rating and availability: 4.6★ from 8,136 Google reviews, open 24/7.
- 4.6★ from 8,136 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 550 Forest Glen Rd, Silver Spring, MD 20901
Based in Lorton, 16 mi away
88/100CR ScoreRanked #23 because of its Google rating and availability: 4.9★ from 770 Google reviews, open 24/7.
- 4.9★ from 770 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 7350 Lockport Pl C, Lorton, VA 22079
Based in Crofton, 19 mi away
88/100CR ScoreRanked #24 because of its Google rating and availability: 4.9★ from 1,156 Google reviews, open 24/7.
- 4.9★ from 1,156 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2142 Priest Bridge Court #6, Crofton, MD 21114
Based in Forestville, 2 mi away
88/100CR ScoreRanked #25 because of its Google rating and trade focus: 5.0★ from 320 Google reviews, listed on Google as “Heating contractor”.
- 5.0★ from 320 Google reviews
- Hours
- Mon 9 AM–10 PM · Tue 9 AM–5 PM · Wed–Fri 9 AM–10 PM · Sat–Sun 9 AM–12 PM
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 813 ranked HVAC contractors here; the rest are on their profiles.
Also serving Clinton
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 |
|---|---|---|
| Ace HVAC & Airduct cleaning Conditioning | 4.5★ (2) | In Clinton |
| Airtron Heating & Air Conditioning | 2.5★ (2) | 6 mi |
| Back 2 Basic HVAC LLC | 5.0★ (2) | 7 mi |
| Cyprus Air Heating, Cooling and Fireplaces | 4.3★ (2,189) | 10 mi |
| DC HVAC, Heating and Air Conditioning | 5.0★ (2) | 11 mi |
| DKS Enterprise LLC | 5.0★ (2) | 6 mi |
| Horizon Mechanical Services LLC | 5.0★ (2) | 5 mi |
| JM INSULATION LLC | 5.0★ (2) | In Clinton |
| KG Winston and Son Plumbing and Heating LLC | In Clinton | |
| Logan Mechanical LLC | 4.7★ (155) | In Clinton |
| McCarthy Services | 4.4★ (3,547) | 16 mi |
| Quality HVAC Services | In Clinton | |
| R&R HVAC Solutions | 5.0★ (220) | 15 mi |
| S&W Controls, Inc. | 5.0★ (2) | 5 mi |
| SCW Inc | 3.0★ (1) | In Clinton |
| Sears Heating and Air Conditioning | 3.0★ (2) | 10 mi |
| Snave Home Services | In Clinton | |
| TRINITY PRO SERVICES | 4.7★ (257) | 5 mi |
| Ultra Painting HVAC Pros | 5.0★ (2) | 8 mi |
| United Service Company | 5.0★ (2) | 8 mi |
How much do HVAC contractors cost in Clinton?
National price ranges in USD, not adjusted for Clinton. 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 Maryland
In Maryland, Maryland State Board of Heating, Ventilation, Air-Conditioning and Refrigeration Contractors licenses Heating, ventilation, air conditioning and refrigeration work.
- 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 Maryland
HVAC demand peaks in summer for cooling and in winter for heating. Spring and fall are the easiest times to book maintenance or a replacement.
How we ranked Clinton HVAC contractors
We scored 813 Clinton HVAC contractors on 8 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. Unknown factors are left out of the score, 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 Clinton data |
|---|---|---|---|
| Reputation | 35% | Bayesian-adjusted Google star rating | Measured |
| Credentials | 15% | Active state license 0.6, bond 0.2, workers’ comp 0.2 | Not yet collected |
| Review volume | 10% | log10(reviews + 1) against the list maximum | Measured |
| Recency | 10% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 10% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | Google main category 1.0, business name 0.7, additional category 0.5 | Measured |
| Proximity | 5% | 1.0 when based in the city, falling to 0 at the trade’s radius | Measured |
| Completeness | 5% | Website, photos, description, hours, claimed profile (0.2 each) | Measured |
HVAC contractors in Clinton: frequently asked questions
Who is the best HVAC contractor in Clinton?
By CR Score, the highest-ranked HVAC contractor in Clinton, MD is United Air Temp with a CR Score of 91/100. It has 4.8★ from 1,775 Google reviews. It is open 24/7. Michael & Son Services (#2) and GW Air Service (#3) follow. We ranked 813 HVAC contractors on 8 factors, last updated October 22, 2026.
How many HVAC contractors are there in Clinton?
ContractorsRanked ranks 813 HVAC contractors serving Clinton, MD. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.
Which HVAC contractors in Clinton are open 24/7?
271 ranked HVAC contractors in Clinton post 24/7 hours. The highest-ranked are United Air Temp (#1), Michael & Son Services (#2) and GW Air Service (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which HVAC contractors in Clinton work on weekends?
549 of 813 ranked HVAC contractors post Saturday hours and 384 post Sunday hours. The highest-ranked open Saturdays are United Air Temp (#1), Michael & Son Services (#2) and GW Air Service (#3). Posted hours are office hours; crews may book weekend jobs separately.
How do I check an HVAC contractor's license in Maryland?
In Maryland, Maryland State Board of Heating, Ventilation, Air-Conditioning and Refrigeration Contractors handles licensing and covers Heating, ventilation, air conditioning and refrigeration work.
How much does ac replacement cost in Clinton?
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 Clinton. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Clinton HVAC contractors have?
The median Google rating among 813 rated HVAC contractors in Clinton is 4.9★, with a median of 21 reviews. Michael & Son Services has the most, 15,537 reviews, and ranks #2. 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 Clinton?
HVAC demand peaks in summer for cooling and in winter for heating. Spring and fall are the easiest times to book maintenance or a replacement.
Update log for Clinton
- October 2026: CR Scores recalculated for 813 hvac contractors serving Clinton.
- October 2026: 9 duplicate listings merged.
More HVAC contractors and Clinton pages
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Other trades in Clinton
- Roofers in Clinton1336 ranked
- Plumbers in Clinton589 ranked
- Electricians in Clinton557 ranked
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- Landscapers in Clinton191 ranked
- Handymen in Clinton150 ranked
- Kitchen remodelers in Clinton828 ranked
- Bathroom remodelers in Clinton818 ranked
- Flooring contractors in Clinton548 ranked
- Tile installers in Clinton62 ranked
- Drywall contractors in Clinton23 ranked
- Concrete contractors in Clinton268 ranked
- Fence contractors in Clinton132 ranked
- Deck builders in Clinton320 ranked
- Siding contractors in Clinton574 ranked
- Window installers in Clinton587 ranked
- Gutter installers in Clinton276 ranked
- Insulation contractors in Clinton95 ranked
- Solar installers in Clinton172 ranked
- Garage door repair companies in Clinton99 ranked
- Foundation repair companies in Clinton186 ranked
- Tree services in Clinton272 ranked
- Masonry contractors in Clinton224 ranked
- Water damage restoration companies in Clinton768 ranked
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- All contractors in Clinton