93/100CR Score
Ranked #1 because of its Google rating and availability: 4.9★ from 2,904 Google reviews, open 24/7.
- 4.9★ from 2,904 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1991 Moreland Pkwy, Annapolis, MD 21401
Best HVAC Contractors in Mayo, MD (2026)
396 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Mayo: Staton Heating, Cooling & Plumbing, CR Score 93/100; 4.9★ from 2,904 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Barstow & Sons Heating and Cooling, posts 24/7 hours; ranked #2 of 396.
- 17
Most-reviewed: Michael & Son Services, 8,326 Google reviews at 4.8★, the most of 396 ranked; ranked #17.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
396 Mayo HVAC contractors are ranked here by CR Score, from 8 published factors. 129 are open 24/7, 242 open Saturdays and 166 open Sundays, based on posted hours. The median Google rating is 4.8★ across 396 rated businesses.
Top 10 HVAC contractors in Mayo at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Staton Heating, Cooling & Plumbing | 93 | 4.9★ (2,904) | Annapolis, 7 mi away | 24/7 | Overall |
| 2 | Barstow & Sons Heating and Cooling | 92 | 4.9★ (1,127) | Annapolis, 6 mi away | 24/7 | Emergencies |
| 3 | Bethany Air | 92 | 4.8★ (1,251) | Edgewater, 4 mi away | 24/7 | — |
| 4 | Belair Engineering and Service Company, Inc. | 91 | 4.9★ (1,421) | Greater Upper Marlboro, 12 mi away | 24/7 | — |
| 5 | Grove Heating & Cooling | 90 | 4.9★ (1,156) | Crofton, 12 mi away | 24/7 | — |
| 6 | Fixed Right & Guaranteed Super Techs, LLC | 90 | 5.0★ (1,032) | Rosaryville, 15 mi away | 24/7 | — |
| 7 | David E White's Plumbing, Heating & Repair Company | 90 | 5.0★ (238) | Annapolis, 7 mi away | 24/7 | — |
| 8 | Shoreline Comfort | 89 | 5.0★ (285) | Stevensville, 12 mi away | 24/7 | — |
| 9 | Boothe's Heating, Air, Plumbing, Drains & Electrical | 88 | 4.9★ (1,461) | Dundalk, 20 mi away | 24/7 | — |
| 10 | United Air Temp | 88 | 4.8★ (253) | Annapolis, 7 mi away | 24/7 | — |
The 396 best HVAC contractors in Mayo, 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 Annapolis, 6 mi away
92/100CR ScoreRanked #2 because of its Google rating and availability: 4.9★ from 1,127 Google reviews, open 24/7.
- 4.9★ from 1,127 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1825 George Ave Suite 6, Annapolis, MD 21401
#3 Bethany Air
Based in Edgewater, 4 mi away
92/100CR ScoreRanked #3 because of its Google rating and availability: 4.8★ from 1,251 Google reviews, open 24/7.
- 4.8★ from 1,251 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 171 MD-253, Edgewater, MD 21037
Based in Greater Upper Marlboro, 12 mi away
91/100CR ScoreRanked #4 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 Crofton, 12 mi away
90/100CR ScoreRanked #5 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 Rosaryville, 15 mi away
90/100CR ScoreRanked #6 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
Based in Annapolis, 7 mi away
90/100CR ScoreRanked #7 because of its Google rating and availability: 5.0★ from 238 Google reviews, open 24/7.
- 5.0★ from 238 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2 Oak Ct, Annapolis, MD 21401
Based in Stevensville, 12 mi away
89/100CR ScoreRanked #8 because of its Google rating and availability: 5.0★ from 285 Google reviews, open 24/7.
- 5.0★ from 285 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1102 Butterworth Ct suite 100, Stevensville, MD 21666
Based in Dundalk, 20 mi away
88/100CR ScoreRanked #9 because of its Google rating and availability: 4.9★ from 1,461 Google reviews, open 24/7.
- 4.9★ from 1,461 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 7600 Energy Pkwy Suite 114, Curtis Bay Industrial Area, MD 21226
#10 United Air Temp
Based in Annapolis, 7 mi away
88/100CR ScoreRanked #10 because of its Google rating and availability: 4.8★ from 253 Google reviews, open 24/7.
- 4.8★ from 253 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2553 Housley Rd, Annapolis, MD 21401
Based in Stevensville, 12 mi away
88/100CR ScoreRanked #11 because of its Google rating and availability: 4.8★ from 382 Google reviews, open 24/7.
- 4.8★ from 382 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1101 Butterworth Ct, Stevensville, MD 21666
Based in Edgewater, 3 mi away
87/100CR ScoreRanked #12 because of its Google rating and availability: 4.9★ from 51 Google reviews, open 24/7.
- 4.9★ from 51 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 459 Penwood Dr, Edgewater, MD 21037
Based in Arnold, 13 mi away
87/100CR ScoreRanked #13 because of its Google rating and availability: 4.8★ from 367 Google reviews, open 24/7.
- 4.8★ from 367 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Crofton, 14 mi away
87/100CR ScoreRanked #14 because of its Google rating and availability: 4.9★ from 221 Google reviews, open 24/7.
- 4.9★ from 221 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1610 Professional Blvd Suite F, Crofton, MD 21114
#15 United Air Temp
Based in Greenbelt, 21 mi away
87/100CR ScoreRanked #15 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
#16 Ambient LLC
Based in Annapolis, 7 mi away
87/100CR ScoreRanked #16 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
- 1910 Towne Centre Blvd Suite 250, Annapolis, MD 21401
Based in Hyattsville, 19 mi away
87/100CR ScoreRanked #17 because of its Google rating and review volume: 4.8★ from 8,326 Google reviews, the most Google reviews on this list (8,326).
- 4.8★ from 8,326 Google reviews
- Hours
- Mon–Sun 8 AM–6 PM
- Address
- 3400 Sharp St, Hyattsville, MD 20785
Based in Dundalk, 16 mi away
87/100CR ScoreRanked #18 because of its Google rating and availability: 5.0★ from 179 Google reviews, open 24/7.
- 5.0★ from 179 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Davidsonville, 8 mi away
87/100CR ScoreRanked #19 because of its Google rating and availability: 4.8★ from 111 Google reviews, open 24/7.
- 4.8★ from 111 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1251-A W Central Ave #161, Davidsonville, MD 21035
Based in Severna Park, 12 mi away
87/100CR ScoreRanked #20 because of its Google rating and availability: 5.0★ from 98 Google reviews, open 24/7.
- 5.0★ from 98 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 762 Dividing Rd, Severna Park, MD 21146
Based in Hanover, 21 mi away
86/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.9★ from 2,167 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 2,167 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2600 Cabover Dr unit a, Hanover, MD 21076
#22 Ambient LLC
Based in Severn, 20 mi away
85/100CR ScoreRanked #22 because of its Google rating and availability: 4.8★ from 336 Google reviews, open 24/7.
- 4.8★ from 336 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 508 Shaw Ct #103, Severn, MD 21144
Based in Largo, 18 mi away
85/100CR ScoreRanked #23 because of its Google rating and availability: 4.8★ from 176 Google reviews, open 24/7.
- 4.8★ from 176 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 9701 Apollo Dr Suite 100-16, Largo, MD 20774
#24 GW Air Service
Based in St. Charles, 23 mi away
85/100CR ScoreRanked #24 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 Lanham, 18 mi away
85/100CR ScoreRanked #25 because of its Google rating and availability: 4.9★ from 114 Google reviews, open 24/7.
- 4.9★ from 114 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 9703 Linwood Ave, Lanham, MD 20706
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 396 ranked HVAC contractors here; the rest are on their profiles.
Also serving Mayo
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 |
|---|---|---|
| A-Gas Rapid Recovery - Baltimore | 5.0★ (2) | 22 mi |
| Airtron Heating & Air Conditioning | 2.5★ (2) | 22 mi |
| All About Everything HVAC & Maintenance | 3.0★ (2) | 17 mi |
| Building and Mechanical Services | 5.0★ (15) | 15 mi |
| Davis Plumbing & Heating Inc | 5.0★ (2) | 16 mi |
| DKS Enterprise LLC | 5.0★ (2) | 21 mi |
| DL Mechanical LLC | 5.0★ (2) | In Mayo |
| Horizon Mechanical Services LLC | 5.0★ (2) | 19 mi |
| JDL HVAC & Plumbing Services | 4.8★ (678) | 23 mi |
| JV heating and air services | 4.8★ (114) | 25 mi |
| Logan Mechanical LLC | 4.7★ (155) | 22 mi |
| oncall-garageservice | 5.0★ (2) | 19 mi |
| One Call Services | 5.0★ (2) | 19 mi |
| Sears Heating and Air Conditioning | 3.0★ (2) | 4 mi |
| Severn's Heating and Air Conditioning | 3.0★ (2) | 13 mi |
| Su’Coy Heating, AC & Duct Cleaning | 4.9★ (64) | 23 mi |
| T & T Plumbing And Heating | 5.0★ (2) | 21 mi |
| TRINITY PRO SERVICES | 4.7★ (257) | 22 mi |
| United Service Company | 5.0★ (2) | 19 mi |
| Wrangler Plumbing & Heating | 5.0★ (2) | 18 mi |
How much do HVAC contractors cost in Mayo?
National price ranges in USD, not adjusted for Mayo. 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 Mayo HVAC contractors
We scored 396 Mayo 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 Mayo 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 Mayo: frequently asked questions
Who is the best HVAC contractor in Mayo?
By CR Score, the highest-ranked HVAC contractor in Mayo, MD is Staton Heating, Cooling & Plumbing with a CR Score of 93/100. It has 4.9★ from 2,904 Google reviews. It is open 24/7. Barstow & Sons Heating and Cooling (#2) and Bethany Air (#3) follow. We ranked 396 HVAC contractors on 8 factors, last updated October 22, 2026.
How many HVAC contractors are there in Mayo?
ContractorsRanked ranks 396 HVAC contractors serving Mayo, MD. 1 of them is based in Mayo; 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 Mayo are open 24/7?
129 ranked HVAC contractors in Mayo post 24/7 hours. The highest-ranked are Staton Heating, Cooling & Plumbing (#1), Barstow & Sons Heating and Cooling (#2) and Bethany Air (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which HVAC contractors in Mayo work on weekends?
242 of 396 ranked HVAC contractors post Saturday hours and 166 post Sunday hours. The highest-ranked open Saturdays are Staton Heating, Cooling & Plumbing (#1), Barstow & Sons Heating and Cooling (#2) and Bethany Air (#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 Mayo?
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 Mayo. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Mayo HVAC contractors have?
The median Google rating among 396 rated HVAC contractors in Mayo is 4.8★, with a median of 23 reviews. Michael & Son Services has the most, 8,326 reviews, and ranks #17. 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 Mayo?
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 Mayo
- October 2026: CR Scores recalculated for 396 hvac contractors serving Mayo.
- October 2026: 2 duplicate listings merged.
More HVAC contractors and Mayo pages
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Other trades in Mayo
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- Electricians in Mayo261 ranked
- General contractors in Mayo534 ranked
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- Handymen in Mayo29 ranked
- Kitchen remodelers in Mayo285 ranked
- Bathroom remodelers in Mayo294 ranked
- Flooring contractors in Mayo203 ranked
- Tile installers in Mayo28 ranked
- Concrete contractors in Mayo153 ranked
- Fence contractors in Mayo66 ranked
- Deck builders in Mayo157 ranked
- Siding contractors in Mayo478 ranked
- Window installers in Mayo491 ranked
- Gutter installers in Mayo126 ranked
- Insulation contractors in Mayo55 ranked
- Solar installers in Mayo149 ranked
- Garage door repair companies in Mayo44 ranked
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- Tree services in Mayo128 ranked
- Masonry contractors in Mayo111 ranked
- Water damage restoration companies in Mayo644 ranked
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- All contractors in Mayo