776 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Glen Burnie: Boothe's Heating, Air, Plumbing, Drains & Electrical, CR Score 92/100; 4.9★ from 1,461 Google reviews; open 24/7.
Best for emergencies (open 24/7): Complete Climate Services LLC, posts 24/7 hours; ranked #2 of 776.
Most-reviewed: Len The Plumber Heating & Air, LLC, 15,911 Google reviews at 4.7★, the most of 776 ranked; ranked #13.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
776 Glen Burnie HVAC contractors are ranked here by CR Score, from 8 published factors. 217 are open 24/7, 464 open Saturdays and 348 open Sundays, based on posted hours. The median Google rating is 4.8★ across 776 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Boothe's Heating, Air, Plumbing, Drains & Electrical | 92 | 4.9★ (1,461) | Dundalk, 4 mi away | 24/7 | Overall |
| 2 | Complete Climate Services LLC | 91 | 5.0★ (786) | Baltimore, 9 mi away | 24/7 | Emergencies |
| 3 | Michael & Son Services | 91 | 4.7★ (8,039) | Baltimore, 11 mi away | 24/7 | — |
| 4 | Staton Heating, Cooling & Plumbing | 90 | 4.9★ (2,904) | Annapolis, 14 mi away | 24/7 | — |
| 5 | Horizon Services - Air Conditioning, Heating, Plumbing, & Electrical | 90 | 4.8★ (4,514) | Baltimore, 14 mi away | 24/7 | — |
| 6 | Ambient LLC | 89 | 4.8★ (336) | Severn, 3 mi away | 24/7 | — |
| 7 | Grove Heating & Cooling | 89 | 4.9★ (1,156) | Crofton, 13 mi away | 24/7 | — |
| 8 | Beltway Air Conditioning, Heating & Plumbing | 89 | 4.9★ (2,167) | Hanover, 3 mi away | 24/7 | — |
| 9 | GAC Services | 89 | 4.9★ (998) | Glen Burnie | Sat · Sun · Evenings | — |
| 10 | Barstow & Sons Heating and Cooling | 89 | 4.9★ (1,127) | Annapolis, 14 mi away | 24/7 | — |
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.
Ranked #1 in Glen Burnie
Based in Dundalk, 4 mi away
Ranked #1 because of its Google rating and availability: 4.9★ from 1,461 Google reviews, open 24/7.
Based in Baltimore, 9 mi away
Ranked #2 because of its Google rating and availability: 5.0★ from 786 Google reviews, open 24/7.
Based in Baltimore, 11 mi away
Ranked #3 because of its Google rating and availability: 4.7★ from 8,039 Google reviews, open 24/7.
Based in Annapolis, 14 mi away
Ranked #4 because of its Google rating and availability: 4.9★ from 2,904 Google reviews, open 24/7.
Based in Baltimore, 14 mi away
Ranked #5 because of its Google rating and availability: 4.8★ from 4,514 Google reviews, open 24/7.
Based in Severn, 3 mi away
Ranked #6 because of its Google rating and availability: 4.8★ from 336 Google reviews, open 24/7.
Based in Crofton, 13 mi away
Ranked #7 because of its Google rating and availability: 4.9★ from 1,156 Google reviews, open 24/7.
Based in Hanover, 3 mi away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 2,167 Google reviews, listed on Google as “HVAC contractor”.
Based in Glen Burnie
Ranked #9 because of its Google rating and trade focus: 4.9★ from 998 Google reviews, listed on Google as “HVAC contractor”.
Based in Annapolis, 14 mi away
Ranked #10 because of its Google rating and availability: 4.9★ from 1,127 Google reviews, open 24/7.
Based in Arbutus, 5 mi away
Ranked #11 because of its Google rating and availability: 4.9★ from 217 Google reviews, open 24/7.
Based in Columbia, 11 mi away
Ranked #12 because of its Google rating and availability: 4.9★ from 658 Google reviews, open 24/7.
Based in Arbutus, 7 mi away
Ranked #13 because of its Google rating and review volume: 4.7★ from 15,911 Google reviews, the most Google reviews on this list (15,911).
Based in Arbutus, 7 mi away
Ranked #14 because of its Google rating and availability: 4.9★ from 275 Google reviews, open 24/7.
Based in Arbutus, 5 mi away
Ranked #15 because of its Google rating and availability: 4.7★ from 472 Google reviews, open 24/7.
Based in Glen Burnie
Ranked #16 because of its Google rating and availability: 4.8★ from 1,788 Google reviews, open 24/7.
Based in Dundalk, 8 mi away
Ranked #17 because of its Google rating and availability: 5.0★ from 179 Google reviews, open 24/7.
Based in Arbutus, 11 mi away
Ranked #18 because of its Google rating and availability: 4.9★ from 419 Google reviews, open 24/7.
Based in Arnold, 8 mi away
Ranked #19 because of its Google rating and availability: 4.8★ from 367 Google reviews, open 24/7.
Based in Hanover, 6 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 729 Google reviews, listed on Google as “HVAC contractor”.
Based in Greater Upper Marlboro, 20 mi away
Ranked #21 because of its Google rating and availability: 4.9★ from 1,421 Google reviews, open 24/7.
Based in Annapolis, 13 mi away
Ranked #22 because of its Google rating and availability: 5.0★ from 238 Google reviews, open 24/7.
Based in Edgewater, 16 mi away
Ranked #23 because of its Google rating and availability: 4.8★ from 1,251 Google reviews, open 24/7.
Based in Essex, 13 mi away
Ranked #24 because of its Google rating and availability: 4.9★ from 369 Google reviews, open 24/7.
Based in Arbutus, 7 mi away
Ranked #25 because of its Google rating and availability: 4.9★ from 142 Google reviews, open 24/7.
#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 776 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 |
|---|---|---|
| ABC Cooling & Heating LLC | 4.7★ (247) | 11 mi |
| Adams Temperature Control | 1.0★ (1) | In Glen Burnie |
| All About Everything HVAC & Maintenance | 3.0★ (2) | 7 mi |
| Around the Clock Plumbing & Heating | 5.0★ (2) | In Glen Burnie |
| ATC Welding Services | In Glen Burnie | |
| Capitol Boiler Works | 1.0★ (2) | 7 mi |
| Community Cooling & Heating Inc | In Glen Burnie | |
| DJE Plumbing and Heating | 5.0★ (2) | 6 mi |
| DM3 Heating & Air | 5.0★ (2) | 9 mi |
| East Coast Welding & Construction Co Inc. | 3.6★ (9) | In Glen Burnie |
| Edison Electric Co | 4.3★ (15) | In Glen Burnie |
| garagedoorsrepairellicottcitymd | 5.0★ (2) | 12 mi |
| JDL HVAC & Plumbing Services | 4.8★ (678) | 14 mi |
| Meleney Equipment Inc | 5.0★ (2) | 10 mi |
| oncall-garageservice | 5.0★ (2) | In Glen Burnie |
| Ready Air HVAC | 5.0★ (2) | 10 mi |
| Scardina Plumbing-Heating Inc | 5.0★ (2) | 10 mi |
| Severn's Heating and Air Conditioning | 3.0★ (2) | 7 mi |
| Shielded Edge Property Solutions | 5.0★ (2) | 5 mi |
| Wrangler Plumbing & Heating | 5.0★ (2) | 8 mi |
National price ranges in USD, not adjusted for Glen Burnie. 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 776 Glen Burnie 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 Glen Burnie 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 |