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Our skilled technician, Alan, doing seasonal maintenance on an HVAC system.
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Mannix Heating & Cooling HVAC Contractor

Delivering Quality Products & Service at Competitive Prices. Emergency Service Available! Financing Options Are Available.

Website: mannixhvac.com

Phone: (301) 260-6000

Interested in our services?

Open now

  • Fri Open 24 Hours

7824 Beechcraft Ave Gaithersburg, MD 20879 ·147.84 mi

Is this your business? Verify your listing

Reviews

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5.0 4 reviews
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Shannon Z. 04/24/26

This business is run by true professionals who take pride in the work that they do. I cannot recommend Jerry and his team enough.

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Kathryn K. 10/24/25

I have been with Mannix since they installed my new water heater in 2018. In these last 7 years I have never been disappointed or dissatisfied with their service. And today was no exception....

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Scott A. 05/17/18

First off, we had an issue last weekend (right before the heat explosion) and Mannix came to the house early Friday. We needed a new motor for the fan in our furnace (Mannix also installed our...

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Robin T. 10/27/19

Mannix quote for heating and AC was much lower than the other quote I received. They were quick and professional; very polite. I had mold in the old unit. They came out immediately, assessed...

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