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

As the leading provider in the area, we offer comprehensive cooling solutions designed to ensure your living or working spaces maintain their much-needed comfort.

Given the unpredictable nature of air conditioning issues, we understand the importance of fast response times. Our highly trained and certified technicians are round-the-clock available, ensuring you won’t have to suffer through the unpleasantness of a malfunctioning cooling system.

Quality AC Repair Guaranteed with Mannix Heating and Cooling

Here at Mannix Heating and Cooling, we value the quality of service we deliver. We use the latest technology, techniques, and tools in all our AC repair operations. Additionally, our professional technicians have years of experience in the industry, allowing them to promptly identify and fix any problem your AC may have.

We excel not only in emergency repairs but also in providing long-term cooling solutions, thereby ensuring that our Potomac residents have efficient and fully operational HVAC systems year-round.

24/7 Emergency Services: AC Repair when you need it most

One thing that distinguishes Mannix Heating and Cooling from others is our commitment to providing 24/7 emergency AC repair services. No matter the time of day, and regardless of the season, we make sure that a team of experts is constantly at your disposal, ready to answer your call and service your needs in Potomac, MD. Our services are not only fast and reliable but also cost-effective. We provide free estimates and upfront pricing, without any hidden charges, ensuring that our services align with your budget and needs.

From small glitches that need swift attention to large-scale cooling problems that affect your AC’s performance significantly, Mannix Heating and Cooling takes on jobs of all sizes. Whether it’s a failing thermostat, a refrigerant leak, or a malfunctioning compressor, our Emergency AC Repair crew in Potomac, MD will be there to get your AC system back to peak performance in no time. At Mannix Heating and Cooling, we not only fix existing problems but we also detect potential issues that might cause future breakdowns. We believe that prevention is the best cure, so we also provide routine maintenance check-ups to ensure your AC system remains efficient and reliable.

With years of service in Potomac, MD, Mannix Heating and Cooling has built an outstanding reputation for its quality services and customer satisfaction. We have a team of skilled professionals that is dedicated to providing cutting-edge solutions for all your AC needs.

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
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
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
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
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
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
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
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
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