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Contact Mannix Heating and Cooling for HVAC and Pool Heat Pump Service Today!

With a solid reputation built over years of dedicated service, we pride ourselves on our commitment to quality and efficiency. Our goal is to ensure that residents of Potomac have fully functional heating systems, especially during the cold winter months when they are heavily relied upon.

Mannix Heating and Cooling specializes in a wide range of heating repair services. Whether you have a malfunctioning furnace, a broken boiler, or a non-operational heat pump, our skilled technicians have the know-how to fix it. We understand that each heating issue presents its unique problems; thus, we approach each repair job with a tailored strategy to ensure we resolve the issue promptly and thoroughly.

Not only do we work on various types of heating systems, our technicians are also well-versed with different makes and models. Whether your system is old or new, American or foreign-made, Mannix Heating and Cooling can provide the necessary repair services to get it up and running in no time.

Why Choose Mannix Heating and Cooling for Heating Repair?

At Mannix Heating and Cooling, we promise to deliver more than just a quick fix. We strive for lasting solutions that aim to optimize the performance of your heating system, increase its lifespan, and ultimately, save you money. Our expert technicians pair their technical skills with top-of-the-line diagnostic tools to accurately identify and address any issues.

Customer satisfaction is of the utmost importance to us. When you choose Mannix Heating and Cooling, you can expect prompt service, competitive rates, and exceptional workmanship. We understand how disruptive and inconvenient a problematic heating system can be, hence we endeavor to complete our repair jobs within the shortest time, without compromising on the quality of work.

Potomac’s Trusted Choice for Heating Repair

The residents of Potomac, MD have come to trust and rely on Mannix Heating and Cooling for all their heating repair needs. Thanks to our commitment to excellence, swift response times, and proven reliability, we have established ourselves as the go-to company for all heating concerns in the area.

We also offer maintenance services to help prevent future issues and ensure that your heating system stays in optimum condition. Consider signing up for regular maintenance checks with us, so you can enjoy peace of mind knowing that your heating system is properly cared for and will perform optimally when needed most.

We’re in Your Neighborhood

Whether you’re in Gaithersburg, MD, Chantilly, VA, or Treasure Island, FL, our local teams are ready with 24-hour answering service and experienced technicians who keep your systems running when you need them most.

Gaithersburg, MD

7824 Beechcraft Ave
Gaithersburg, MD, 20879
(301) 260-6000

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Chantilly, VA

26955 Gum Spring Road
Chantilly, VA, 20152
(703) 777-9211

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Treasure Island, FL

10625 1st Street E. Suite 200
Treasure Island, FL, 33706
(727) 999-7002

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HVAC Maintenance

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Comprehensive Climate Control Solutions

Our comprehensive approach encompasses everything from routine maintenance to complete system overhauls, ensuring optimal performance throughout every season. We specialize in both residential and commercial applications, understanding that each environment presents unique challenges requiring customized solutions.

Mannix Rewards

Receive up to $100 Mannix Heating & Cooling Visa® Prepaid Card

Customer Referral Program

Customer Reviews
Before dealing with Mannix I used two very well-known and “reputable” HVAC companies who did nothing but rip us off over the years. I was frustrated and found Mannix Heating & Cooling about 10 years ago. They installed a new HVAC system in my old home, and installed a water...
Customer Reviews
Been a happy Mannix customer for a few years now, but recently had them replace our aging HVAC system. The whole process was very painless, from Eric helping us decide which system was right for our home, to the efficient and professional installation by Billy and Matt. I am very pleased with the...
Philip Slingerland Leave a Review
Customer Reviews
They were lifesavers!!! My furnace went out and after three days of dealing with the home warranty company and the unscrupulous vendor they sent to my home, I called Mannix. The service technician was friendly, efficient but most of all honest. He found the problem after twenty minutes, saving...
Shondra J ones Leave a Review
Customer Reviews
I contacted Mannix from a referral of a friend who has benefitted from the excellent service this company provides. I found out a couple I know in Vienna had their heat pump stop working a few months ago and needed to be replaced. I called up the Mannix office later in the day on Monday 11/30/20...
Lynne Wilson Leave a Review
Customer Reviews
Mannix proved very responsive in fixing my A/C system. The tech, Erick, was very professional by taking the time showing and explaining to me the system problem prior to taking action replacing the coil. Ashleigh, customer service, was excellent in addressing and following through on concerns in...
Gary Hendricks Leave a Review
Customer Reviews
We were in desperate need of a fix on our AC system during the July heatwave. The issue arose on a Saturday. Mannix came to the rescue in short order, fixed it, and at a reasonable price. Silvio G was the technician, and he was GREAT. We would definitely use Mannix again!
Customer Reviews
I have been using Mannix for years. They have replaced my HVAC system and I have them do maintenance twice a year. The past couple of visits have been done by Ramiro. He is professional, polite, knowledgeable, and very helpful in assisting me with tips on the best ways to operate my system. Today,...
Patricia Ryan Leave a Review
Customer Reviews
My 24-year-old heat pump finally decided to stop working. I sent a request for a replacement estimate late one night through the Mannix website and received a phone call early the very next morning to set up an appointment. Eric Holzworth stopped by my house the next day to go over my options. He...
Customer Reviews
I’ve been using Mannix for years and have never been disappointed. They’ve replaced my HVAC, hot water heater and installed a humidifier on my furnace. Whenever I need them, they can get me on the schedule in a timely manner. All the personnel are great and I trust Jerry and his team...
Rachel Craft Leave a Review
Customer Reviews
Mannix has always been professional from service calls to repairs and replacements. The technicians are always polite and knowledgeable. They consistently exceed our expectations.
Wendy Collins Leave a Review
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