Contractors/Maryland/HVAC Contractors
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Maryland HVAC Contractors

Looking for hvac contractors in Maryland? Below are 10 top-rated hvac contractors serving Maryland in 2026 — every one rated 4.0+ stars with 10 or more verified Google reviews. Compare ratings and review counts, then contact them directly by phone or website. No middleman, no lead fees.

Listings are sourced from public Google Business Profiles and sorted by rating. Are you a Maryland hvac contractor? Add your business free below.

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1

Cornett Heating & Cooling

104 Ritchie Hwy, Pasadena, MD 21122, USA

5.0star

966 reviews

Reviews via Google

phone(410) 801-7771
2

Clarksville Heating & Air, LLC

7380 Coca Cola Dr Suite 121, Hanover, MD 21076, USA

5.0star

751 reviews

Reviews via Google

phone(443) 324-0728
3

Thermal Plus LLC

231 Creekside Commons Ct, Stevensville, MD 21666, USA

5.0star

203 reviews

Reviews via Google

phone(443) 696-4343
4

Cozy Heating & Cooling, LLC

4420 Hillside Ave, Baltimore, MD 21229, USA

5.0star

133 reviews

Reviews via Google

phone(443) 438-0476
5

GAC Services

227 E Deer Park Dr, Gaithersburg, MD 20877, USA

4.9star

7,200 reviews

Reviews via Google

phone(301) 202-1641
6

Boothe's Heating, Air, Plumbing, Drains, & Electrical

43883 Airport View Dr A, Hollywood, MD 20636, USA

4.9star

4,450 reviews

Reviews via Google

phone(301) 264-8968
7

Beltway Air Conditioning, Heating & Plumbing

2600 Cabover Dr unit a, Hanover, MD 21076, USA

4.9star

2,256 reviews

Reviews via Google

phone(443) 727-1542
8

Belair Engineering and Service Company, Inc.

15881 Commerce Ct, Upper Marlboro, MD 20774, USA

4.9star

1,459 reviews

Reviews via Google

phone(301) 249-0300
9

Grove Heating & Cooling

2142 Priest Bridge Court #6, Crofton, MD 21114, USA

4.9star

1,185 reviews

Reviews via Google

phone(410) 881-5271
10

Barstow & Sons Heating and Cooling

1825 George Ave Suite 6, Annapolis, MD 21401, USA

4.9star

1,173 reviews

Reviews via Google

phone(410) 544-2606

Data sourced from Google Places. Updated April 12, 2026.

Hiring an HVAC Contractor in Maryland

Buildermuse currently lists 10 hvac contractors in Maryland, averaging 4.9 stars across 19,776 verified Google reviews. That is an unusually strong field — when nearly every firm clears 4.8 stars, response time and availability become the real differentiators, so call two or three rather than only the top result. Most of the crews above operate out of Hanover, Annapolis, and Baltimore.

Maryland licenses this trade at the state level: the HVAC credential is required for all work, regardless of project size. Licensed through local jurisdictions. Licenses renew on a two-year cycle (license issue date). Expect a $400 state application fee. Verify any license directly with the Maryland Home Improvement Commission at (410) 230-6231 before signing a contract. At a minimum, ask for proof of $50,000 in general liability coverage.

Labor is the biggest line item on most bids, and the Maryland market sets the floor: construction workers here average $38.40 an hour — about $79,872 a year — across 166,040 workers statewide, per Bureau of Labor Statistics data. Use that figure as a sanity check when comparing quotes — a bid priced far below market labor rates usually means subcontracted or uninsured crews.

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