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

Our reputation for providing unparalleled HVAC services in the Potomac area has been built on dedication, expertise, and customer satisfaction. We understand fully well how the freezing Potomac winters can be, and we strive to ensure that your heating appliances are always in optimum condition to keep your home or office cozy and comfortable.

We offer a broad spectrum of heating services to the Potomac area. Whether it’s installing a brand new heating system, carrying out routine maintenance, or responding to emergency repair needs, Mannix Heating and Cooling has got you covered. Our team of experienced, licensed professionals is always ready to provide quick and efficient solutions tailored specifically to your heating needs. We have experience with all heating systems, including furnaces, heat pumps, and boilers, and employ advanced technology to ensure your heating appliances are operating at maximum efficiency.

The climate of Potomac, MD, with its cold winters, necessitates a fully effective and reliable home heating system. Recognizing this, Mannix Heating and Cooling offers comprehensive heating maintenance services that guarantee the longevity, efficiency, and safety of your heating appliances. Our preventive maintenance plans are designed to identify potential issues before they become major problems, thus saving you from inconvenient breakdowns and costly repairs down the line.

Proficient and Affordable Heating Maintenance

Maintenance does not only prevent breakdowns but also optimizes your system’s operation, ensuring it uses the least amount of energy to provide the highest level of comfort. Regular maintenance by our professionals can help lower your energy bills, extend the lifespan of your heating equipment, enhance performance, and maintain optimal indoor air quality. We understand that each heating system is unique, so we customize our maintenance services to meet the specific needs of each client’s equipment.

The Mannix Heating and Cooling team prides itself on delivering superior quality service, and this means more than just repairing or servicing your heating systems. We aim to build lasting relationships with our customers in Potomac. From your first interaction with our front office staff to the service appointment with our technicians, you can expect nothing short of professionalism, friendliness, and a commitment to your satisfaction.

Choose Mannix Heating and Cooling for All Your Heating Service & Maintenance Needs

Trust in Mannix Heating and Cooling for all your heating service & maintenance needs in Potomac, MD. Our use of cutting-edge technology, along with our unyielding dedication to customer satisfaction, sets us apart in the industry. With us, you can rest easy knowing that your comfort and safety are in the best hands possible. If you need 24/7 emergency service, preventive maintenance, or a thorough inspection of your heating system, don’t hesitate to reach out to Mannix Heating and Cooling. Your heating comfort is our top priority.

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
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
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 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
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
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
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
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
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
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