91/100CR Score
Ranked #1 because of its Google rating and availability: 4.5★ from 7,297 Google reviews, open 24/7.
- 4.5★ from 7,297 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 125 Industry Ln, Forest Hill, MD 21050
Best HVAC Contractors in Bel Air South, MD (2026)
330 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Bel Air South: Blue Dot Services, CR Score 91/100; 4.5★ from 7,297 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Aire Serv of Bel Air, posts 24/7 hours; ranked #2 of 330.
- 6
Most-reviewed: Michael & Son Services, 8,039 Google reviews at 4.7★, the most of 330 ranked; ranked #6.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
330 Bel Air South HVAC contractors are ranked here by CR Score, from 8 published factors. 101 are open 24/7, 197 open Saturdays and 157 open Sundays, based on posted hours. The median Google rating is 4.8★ across 330 rated businesses.
Top 10 HVAC contractors in Bel Air South at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Blue Dot Services | 91 | 4.5★ (7,297) | Bel Air North, 6 mi away | 24/7 | Overall |
| 2 | Aire Serv of Bel Air | 91 | 4.9★ (309) | Bel Air North, 2 mi away | 24/7 | Emergencies |
| 3 | HGH Mechanical | 91 | 4.9★ (337) | Edgewood, 4 mi away | 24/7 | — |
| 4 | Horizon Services - Air Conditioning, Heating, Plumbing & Electrical | 90 | 4.8★ (2,282) | Havre de Grace, 12 mi away | 24/7 | — |
| 5 | Anchor Mechanical LLC | 90 | 4.9★ (340) | Bel Air North, 5 mi away | 24/7 | — |
| 6 | Michael & Son Services | 90 | 4.7★ (8,039) | Baltimore, 18 mi away | 24/7 | Most reviews |
| 7 | Broyles HVACR | 89 | 4.9★ (244) | Joppatowne, 7 mi away | 24/7 | — |
| 8 | Griff's Heating and Air | 89 | 5.0★ (93) | Bel Air, 3 mi away | 24/7 | — |
| 9 | First Response Heating & Cooling | 89 | 4.8★ (285) | Bel Air North, 6 mi away | 24/7 | — |
| 10 | Pure Air HVAC | 89 | 5.0★ (378) | Bel Air North, 2 mi away | Sat · Sun · Evenings | — |
The 330 best HVAC contractors in Bel Air South, 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 Bel Air North, 2 mi away
91/100CR ScoreRanked #2 because of its Google rating and availability: 4.9★ from 309 Google reviews, open 24/7.
- 4.9★ from 309 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Edgewood, 4 mi away
91/100CR ScoreRanked #3 because of its Google rating and availability: 4.9★ from 337 Google reviews, open 24/7.
- 4.9★ from 337 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2107 Emmorton Park Rd #111, Edgewood, MD 21040
Based in Havre de Grace, 12 mi away
90/100CR ScoreRanked #4 because of its Google rating and availability: 4.8★ from 2,282 Google reviews, open 24/7.
- 4.8★ from 2,282 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 908 Pulaski Hwy, Havre De Grace, MD 21078
Based in Bel Air North, 5 mi away
90/100CR ScoreRanked #5 because of its Google rating and availability: 4.9★ from 340 Google reviews, open 24/7.
- 4.9★ from 340 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1630 Robin Cir, Forest Hill, MD 21050
Based in Baltimore, 18 mi away
90/100CR ScoreRanked #6 because of its Google rating and review volume: 4.7★ from 8,039 Google reviews, the most Google reviews on this list (8,039).
- 4.7★ from 8,039 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 6420 Erdman Ave, Baltimore, MD 21205
Based in Joppatowne, 7 mi away
89/100CR ScoreRanked #7 because of its Google rating and availability: 4.9★ from 244 Google reviews, open 24/7.
- 4.9★ from 244 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 37 Neptune Dr, Joppatowne, MD 21085
Based in Bel Air, 3 mi away
89/100CR ScoreRanked #8 because of its Google rating and availability: 5.0★ from 93 Google reviews, open 24/7.
- 5.0★ from 93 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 706 Orley Pl, Bel Air, MD 21014
Based in Bel Air North, 6 mi away
89/100CR ScoreRanked #9 because of its Google rating and availability: 4.8★ from 285 Google reviews, open 24/7.
- 4.8★ from 285 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 4 Newport Dr Suite J, Forest Hill, MD 21050
#10 Pure Air HVAC
Based in Bel Air North, 2 mi away
89/100CR ScoreRanked #10 because of its Google rating and trade focus: 5.0★ from 378 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 378 Google reviews
- Hours
- Mon–Fri 8 AM–7 PM · Sat 9 AM–3 PM · Sun 10 AM–3 PM
#11 Excel Services
Based in Bel Air North, 8 mi away
88/100CR ScoreRanked #11 because of its Google rating and availability: 4.9★ from 411 Google reviews, open 24/7.
- 4.9★ from 411 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 19 Brocks Way, Jarrettsville, MD 21084
Based in Baltimore, 21 mi away
88/100CR ScoreRanked #12 because of its Google rating and availability: 5.0★ from 786 Google reviews, open 24/7.
- 5.0★ from 786 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 204 S Chapel St, Baltimore, MD 21231
Based in Bel Air North, 2 mi away
88/100CR ScoreRanked #13 because of its Google rating and availability: 5.0★ from 52 Google reviews, open 24/7.
- 5.0★ from 52 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2028 Knotty Pine Dr, Abingdon, MD 21009
#14 Comfort Air
Based in Fallston, 5 mi away
88/100CR ScoreRanked #14 because of its Google rating and availability: 5.0★ from 65 Google reviews, open 24/7.
- 5.0★ from 65 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2713 Belair Rd, Fallston, MD 21047
Based in Newark, 17 mi away
88/100CR ScoreRanked #15 because of its Google rating and availability: 4.9★ from 549 Google reviews, open 24/7.
- 4.9★ from 549 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Essex, 16 mi away
87/100CR ScoreRanked #16 because of its Google rating and availability: 4.9★ from 369 Google reviews, open 24/7.
- 4.9★ from 369 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1 Mace Ave, Essex, MD 21221
Based in Essex, 16 mi away
87/100CR ScoreRanked #17 because of its Google rating and availability: 5.0★ from 195 Google reviews, open 24/7.
- 5.0★ from 195 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 613 Eastern Blvd, Essex, MD 21221
#18 APJ HVAC and R
Based in Fallston, 4 mi away
87/100CR ScoreRanked #18 because of its Google rating and availability: 5.0★ from 43 Google reviews, open 24/7.
- 5.0★ from 43 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2403 Harford Rd, Fallston, MD 21047
Based in Timonium, 17 mi away
87/100CR ScoreRanked #19 because of its Google rating and availability: 4.8★ from 614 Google reviews, open 24/7.
- 4.8★ from 614 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 9528 Deereco Rd, Timonium, MD 21093
Based in Essex, 16 mi away
87/100CR ScoreRanked #20 because of its Google rating and availability: 4.8★ from 408 Google reviews, open 24/7.
- 4.8★ from 408 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 820 Eastern Blvd, Essex, MD 21221
Based in Cockeysville, 10 mi away
87/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.9★ from 726 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 726 Google reviews
- Hours
- Mon–Fri 6:30 AM–7 PM · Sat 7 AM–7 PM · Sun 8 AM–7 PM
- Address
- 12076 Glen Arm Rd, Glen Arm, MD 21057
Based in Bel Air, 5 mi away
87/100CR ScoreRanked #22 because of its Google rating and availability: 4.8★ from 64 Google reviews, open 24/7.
- 4.8★ from 64 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1300 Enterprise Ct #105, Bel Air, MD 21014
Based in Bel Air North, 2 mi away
87/100CR ScoreRanked #23 because of its Google rating and availability: 5.0★ from 27 Google reviews, open 24/7.
- 5.0★ from 27 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3085 Benefit Ct, Abingdon, MD 21009
Based in Bel Air South
86/100CR ScoreRanked #24 because of its Google rating and availability: 5.0★ from 18 Google reviews, open 24/7.
- 5.0★ from 18 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Bel Air, 4 mi away
86/100CR ScoreRanked #25 because of its Google rating and availability: 5.0★ from 49 Google reviews, open 24/7.
- 5.0★ from 49 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2005 Churchville Rd # 100, Bel Air, MD 21015
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 330 ranked HVAC contractors here; the rest are on their profiles.
Also serving Bel Air South
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 |
|---|---|---|
| AAA | 4.7★ (60) | 15 mi |
| Bennett Air Care LLC | 5.0★ (2) | 7 mi |
| Clean HVAC & Airduct Cleaning Abingdon | 5.0★ (1) | In Bel Air South |
| Commercial CAD | 5.0★ (2) | 16 mi |
| D&J solutions LLC | 4.9★ (17) | 14 mi |
| Diligent Mechanical Services | 5.0★ (1) | 2 mi |
| DJE Plumbing and Heating | 5.0★ (2) | 23 mi |
| DM3 Heating & Air | 5.0★ (2) | 21 mi |
| Elite Heating And Cooling | 3.0★ (2) | 15 mi |
| Home Services at The Home Depot | 4.0★ (2) | 8 mi |
| KMT Mechanical llc (HVAC) | 4.8★ (12) | 12 mi |
| Neucor Plumbing & Heating Inc | In Bel Air South | |
| R & G Plumbing & Heating | 5.0★ (2) | 15 mi |
| Ready Air HVAC | 5.0★ (2) | 19 mi |
| Scardina Plumbing-Heating Inc | 5.0★ (2) | 21 mi |
| Soul HVAC | 5.0★ (10) | In Bel Air South |
| Superior Service Specialists, Inc | In Bel Air South | |
| Thomas Air Conditioning Services, Inc. | 5.0★ (2) | 2 mi |
| United Air Temp | 4.4★ (88) | 17 mi |
| W J House Plumbing & Heating | 5.0★ (1) | In Bel Air South |
How much do HVAC contractors cost in Bel Air South?
National price ranges in USD, not adjusted for Bel Air South. 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 Bel Air South HVAC contractors
We scored 330 Bel Air South 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 Bel Air South 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 Bel Air South: frequently asked questions
Who is the best HVAC contractor in Bel Air South?
By CR Score, the highest-ranked HVAC contractor in Bel Air South, MD is Blue Dot Services with a CR Score of 91/100. It has 4.5★ from 7,297 Google reviews. It is open 24/7. Aire Serv of Bel Air (#2) and HGH Mechanical (#3) follow. We ranked 330 HVAC contractors on 8 factors, last updated October 22, 2026.
How many HVAC contractors are there in Bel Air South?
ContractorsRanked ranks 330 HVAC contractors serving Bel Air South, MD. 2 of them are based in Bel Air South; 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 Bel Air South are open 24/7?
101 ranked HVAC contractors in Bel Air South post 24/7 hours. The highest-ranked are Blue Dot Services (#1), Aire Serv of Bel Air (#2) and HGH Mechanical (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which HVAC contractors in Bel Air South work on weekends?
197 of 330 ranked HVAC contractors post Saturday hours and 157 post Sunday hours. The highest-ranked open Saturdays are Blue Dot Services (#1), Aire Serv of Bel Air (#2) and HGH Mechanical (#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 Bel Air South?
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 Bel Air South. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Bel Air South HVAC contractors have?
The median Google rating among 330 rated HVAC contractors in Bel Air South is 4.8★, with a median of 18 reviews. Michael & Son Services has the most, 8,039 reviews, and ranks #6. 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 Bel Air South?
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 Bel Air South
- October 2026: CR Scores recalculated for 330 hvac contractors serving Bel Air South.
- October 2026: 2 duplicate listings merged.
More HVAC contractors and Bel Air South pages
HVAC contractors near Bel Air South
- HVAC contractors in South Bel Air, MD314 ranked
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- Electricians in Bel Air South210 ranked
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- Foundation repair companies in Bel Air South108 ranked
- Tree services in Bel Air South76 ranked
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- Water damage restoration companies in Bel Air South367 ranked
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- All contractors in Bel Air South