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

We believe in providing the right solutions every time to ensure your environment remains comfortable, and your systems operate at peak efficiency.

At Mannix Heating and Cooling, we have a team of well-trained, certified, and experienced professionals who are experts in servicing HVAC systems. Our services span a wide range, including installation, repair, and regular maintenance of heating and cooling systems. From tackling complex issues like furnace malfunctions and air conditioner breakdowns to preventive maintenance and system upgrades, we can handle it all. Our technicians ensure that every task performed meets the highest industry standards and leaves you satisfied.

Trustworthy HVAC Services

This dedication to professionalism and quality has helped us solidify our reputation as a trustworthy HVAC contractor in Germantown, MD. We are always ready to provide swift, dependable service when you need it. We understand that HVAC problems rarely occur at convenient times; therefore, we offer emergency services 24/7 to ensure that you’re never left in discomfort. Our commitment to your satisfaction goes beyond merely addressing your immediate needs. We strive to provide solutions that improve the long-term performance and lifespan of your HVAC system.

Mannix Heating and Cooling is customer-focused, and our mission is to build lasting relationships with our clients. With us, you’re more than just a job number; you’re a valued customer and neighbor. We take the time to understand your needs and concerns, providing customized solutions that fit your specific situation. Our competent team is always ready to answer your questions, guide you through our process, and keep you updated with transparent, honest communication.

Energy-Efficient Solutions from Mannix Heating and Cooling

We emphasize energy efficiency as part of our service. It’s our goal to help you enjoy a comfortable indoor environment while minimizing your energy consumption. We recommend systems and upgrades that can significantly reduce your energy bills and lessen your environmental impact. Furthermore, an energy-efficient HVAC system can add value to your property and improve indoor air quality, resulting in a healthier home or workplace.

Experience the Mannix Heating and Cooling difference by trusting us with your HVAC needs in Germantown, MD. Our rich history of delivering excellent HVAC services, coupled with our dedication to innovating and keeping up with the latest industry standards, makes us the ideal choice. With us, you can expect prompt, quality service that exceeds expectations. We’re not satisfied until you’re fully comfortable and satisfied with the performance of your HVAC system.

Contact Mannix Heating and Cooling today for all your HVAC needs in Germantown, MD. We’re eager to demonstrate why we’re the preferred choice for heating and cooling services in the area. Your comfort and satisfaction are 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
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
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
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
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
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
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
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
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...
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