916 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Oxon Hill-Glassmanor: United Air Temp, CR Score 64/100; 4.8★ from 1,775 Google reviews; open 24/7.
Best for emergencies (open 24/7): Michael & Son Services, posts 24/7 hours; ranked #2 of 916.
Most-reviewed: Michael & Son Services, 15,537 Google reviews at 4.7★, the most of 916 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
916 Oxon Hill-Glassmanor HVAC contractors are ranked here by CR Score, from ten published factors. 296 are open 24/7, 616 open Saturdays and 429 open Sundays, based on posted hours. The median Google rating is 4.9★ across 916 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | United Air Temp | 64 | 4.8★ (1,775) | Fort Washington, 1 mi away | 24/7 | Overall |
| 2 | Michael & Son Services | 64 | 4.7★ (15,537) | Alexandria, 10 mi away | 24/7 | Emergencies, Most reviews |
| 3 | John C. Flood | 64 | 4.8★ (4,976) | Alexandria, 10 mi away | 24/7 | — |
| 4 | Krafft Service Corporation | 63 | 4.9★ (1,631) | Alexandria, 9 mi away | 24/7 | — |
| 5 | AZA heating, cooling, plumbing & construction | 63 | 5.0★ (959) | Alexandria, 9 mi away | 24/7 | — |
| 6 | CroppMetcalfe | 63 | 4.8★ (7,638) | Fairfax, 15 mi away | 24/7 | — |
| 7 | Caffi Services | 63 | 4.9★ (508) | Alexandria, 4 mi away | 24/7 | — |
| 8 | Michael & Son Services | 62 | 4.8★ (8,326) | Hyattsville, 12 mi away | Sat · Sun | — |
| 9 | F.H. Furr Plumbing, Heating, Air Conditioning & Electrical | 62 | 4.7★ (4,469) | Lorton, 13 mi away | 24/7 | — |
| 10 | United Air Temp | 62 | 4.8★ (1,318) | Alexandria, 9 mi away | 24/7 | — |
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.
Ranked #1 because of its Google rating and trade focus: 4.8★ from 1,775 Google reviews, listed on Google as “HVAC contractor”.
Based in Alexandria, 10 mi away
Ranked #2 because of its Google rating and review volume: 4.7★ from 15,537 Google reviews, the most in Oxon Hill-Glassmanor.
Based in Alexandria, 10 mi away
Ranked #3 because of its Google rating and trade focus: 4.8★ from 4,976 Google reviews, listed on Google as “HVAC contractor”.
Based in Alexandria, 9 mi away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 1,631 Google reviews, listed on Google as “HVAC contractor”.
Based in Alexandria, 9 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 959 Google reviews, listed on Google as “HVAC contractor”.
Based in Fairfax, 15 mi away
Ranked #6 because of its Google rating and trade focus: 4.8★ from 7,638 Google reviews, listed on Google as “HVAC contractor”.
Based in Alexandria, 4 mi away
Ranked #7 because of its Google rating and trade focus: 4.9★ from 508 Google reviews, listed on Google as “HVAC contractor”.
Based in Hyattsville, 12 mi away
Ranked #8 because of its Google rating and trade focus: 4.8★ from 8,326 Google reviews, listed on Google as “HVAC contractor”.
Based in Lorton, 13 mi away
Ranked #9 because of its Google rating and trade focus: 4.7★ from 4,469 Google reviews, listed on Google as “HVAC contractor”.
Based in Alexandria, 9 mi away
Ranked #10 because of its Google rating and trade focus: 4.8★ from 1,318 Google reviews, listed on Google as “HVAC contractor”.
Based in Alexandria, 6 mi away
Ranked #11 because of its Google rating and trade focus: 4.9★ from 440 Google reviews, listed on Google as “HVAC contractor”.
Based in Silver Spring, 15 mi away
Ranked #12 because of its Google rating and trade focus: 4.6★ from 8,136 Google reviews, listed on Google as “HVAC contractor”.
Based in Fairfax, 15 mi away
Ranked #13 because of its Google rating and trade focus: 4.9★ from 1,794 Google reviews, listed on Google as “HVAC contractor”.
Based in St. Charles, 5 mi away
Ranked #14 because of its Google rating and trade focus: 4.9★ from 270 Google reviews, listed on Google as “HVAC contractor”.
Based in Greater Upper Marlboro, 15 mi away
Ranked #15 because of its Google rating and trade focus: 4.9★ from 1,421 Google reviews, listed on Google as “HVAC contractor”.
Based in Waldorf, 13 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 625 Google reviews, listed on Google as “HVAC contractor”.
Based in Alexandria, 7 mi away
Ranked #17 because of its Google rating and trade focus: 4.9★ from 326 Google reviews, listed on Google as “HVAC contractor”.
Based in Springfield, 13 mi away
Ranked #18 because of its Google rating and trade focus: 4.9★ from 966 Google reviews, listed on Google as “HVAC contractor”.
Based in Forestville, 3 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 320 Google reviews, listed on Google as “Heating contractor”.
Based in Lorton, 13 mi away
Ranked #20 because of its Google rating and trade focus: 4.9★ from 770 Google reviews, listed on Google as “HVAC contractor”.
Based in Washington, D.C., 6 mi away
Ranked #21 because of its Google rating and trade focus: 4.9★ from 205 Google reviews, listed on Google as “HVAC contractor”.
Based in St. Charles, 14 mi away
Ranked #22 because of its Google rating and trade focus: 4.8★ from 1,234 Google reviews, listed on Google as “HVAC contractor”.
Based in Greenbelt, 14 mi away
Ranked #23 because of its Google rating and trade focus: 4.8★ from 1,306 Google reviews, listed on Google as “HVAC contractor”.
Based in Lorton, 13 mi away
Ranked #24 because of its Google rating and trade focus: 4.8★ from 908 Google reviews, listed on Google as “HVAC contractor”.
Based in Lorton, 13 mi away
Ranked #25 because of its Google rating and trade focus: 4.8★ from 866 Google reviews, listed on Google as “HVAC contractor”.
#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 916 ranked HVAC contractors here; the rest are on their profiles.
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 |
|---|---|---|
| Absolute Supply and Services, LLC | 4.5★ (2) | 3 mi |
| Ace HVAC & Airduct cleaning Conditioning | 4.5★ (2) | 6 mi |
| Back 2 Basic HVAC LLC | 5.0★ (2) | 4 mi |
| Barivo HVAC Repair Washington | 5.0★ (2) | 8 mi |
| Cora AC | 5.0★ (2) | 7 mi |
| Coreno HVAC Repair Washington | 5.0★ (2) | 8 mi |
| DC HVAC, Heating and Air Conditioning | 5.0★ (2) | 7 mi |
| Heravo HVAC Repair Washington | 5.0★ (2) | 8 mi |
| Homestead Handymen HVAC/R, LLC | 5.0★ (2) | 6 mi |
| Horizon Mechanical Services LLC | 5.0★ (2) | 7 mi |
| JM INSULATION LLC | 5.0★ (2) | 6 mi |
| Logan Mechanical LLC | 4.7★ (155) | 4 mi |
| Perfect Temp Heating & Cooling | 5.0★ (2) | 9 mi |
| Perry Aire Services, Inc | 4.6★ (181) | 6 mi |
| S&W Controls, Inc. | 5.0★ (2) | 7 mi |
| TRINITY PRO SERVICES | 4.7★ (257) | 4 mi |
| Ultra Painting HVAC Pros | 5.0★ (2) | 3 mi |
| United Service Company | 5.0★ (2) | 8 mi |
| Xavino HVAC Repair Washington | 5.0★ (2) | 8 mi |
| Zelavo HVAC Repair Washington | 5.0★ (2) | 8 mi |
National price ranges in USD, not adjusted for Oxon Hill-Glassmanor. 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 |
In Maryland, Maryland State Board of Heating, Ventilation, Air-Conditioning and Refrigeration Contractors licenses Heating, ventilation, air conditioning and refrigeration work.
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
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.
We scored 916 Oxon Hill-Glassmanor 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 Oxon Hill-Glassmanor 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 |