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Mannix Heating & Cooling - Gaithersburg

5.0

About this business

Mannix Heating & Cooling meets higher standards of quality. For heating, cooling and electrical needs in Gaithersburg, MD, Chantilly, VA and their surrounding areas and the surrounding areas, we offer home and business owners a comprehensive range of services, including installation, upgrades, seasonal maintenance, and prompt repair. We have earned distinction as a Carrier Factory Authorized Dealer, maintaining rigid criteria for customer satisfaction, technical expertise, and ethical business practices. 

Location details

7824 Beechcraft Ave, Gaithersburg, MD, 20879, United States

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5.099 reviews
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MN H's profile image
3 days ago

KP did a great job. He was very thorough in assessing our systems and remedying a leak issue. I appreciated his professionalism and attention to detail! 

Steve Michaels's profile image
Steve Michaels 
2 months ago

Mannix heating did an excellent job from the same day visit to estimate a furnace replacement to the installation technician who did an excellent job installing both the furnace and a steam humidifier. I used them for my other furnace 3 years ago and that was also a great experience. I had other estimates and they were the most competitive too. You won’t go wrong with this company. 

Collin Klamper's profile image
Collin Klamper 
3 weeks ago

KP was here this week for our seasonal inspection and like everyone else I’ve worked with at Mannix, he was on time, professional, and incredibly courteous. They take great care of our equipment and they’re easy to work with. 

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David Palacios 
4 months ago

I have been working with Mannix Heating & Cooling for 4 years since they installed my heating and cooling systems and I have no complaints. In fact, only good things to say about them which motivated this review. Today was a great example. Technician Erick Aviles visited me today to check my heating system. He did a great job because he carefully evaluated the issue, found the root cause, made the necessary repair and explained everything in a way that is easy to understand. Erick is a great example of the professionalism a... read more

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eryder05 
a week ago

03-31-25: Another great visit from Mannix HVAC. KP, the technician, did a fantastic job and was quick courteous and very helpful to make sure I knew everything that I needed to know about my system for this service. 

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Mannix Heating & Cooling - Gaithersburg has a 5 star rating with 99 reviews. 

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Mannix Heating & Cooling - Gaithersburg is open now. It is open 24/7.