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

Sterling, VA, known for its diverse weather patterns, can place a significant strain on both residential and commercial heating and cooling systems. With fluctuating temperatures from bitter cold winters to blistering hot summers, the demand for reliable and efficient HVAC services in Sterling has never been higher. Mannix Heating and Cooling is well-equipped and experienced to meet these demands with ease.

Comprehensive HVAC Services in Sterling

We pride ourselves on our wide range of services that cater to all your HVAC needs. Whether it’s repairing your malfunctioning air conditioner in the peak of Sterling’s summer or maintaining your heating system just in time for winter, Mannix Heating and Cooling has you covered.

Our services extend beyond simply offering HVAC repair and maintenance. We also provide services such as heating system installation, air condition system replacement, and even consultations for improving overall efficiency of your existing HVAC system. All of our services are performed by highly trained and certified technicians who are dedicated to maintaining the highest standards of quality and service.

At Mannix Heating and Cooling, quality is our cornerstone. We believe that the efficient functioning of your HVAC system is paramount, and we go to great lengths to ensure we deliver nothing short of excellence. Each of our technicians undergoes rigorous training to ensure that they are up to date with the latest technological advancements in the HVAC industry. Using state-of-the-art tools and equipment, we can diagnose a wide range of HVAC issues efficiently and offer reliable solutions that ensure your system operates efficiently all year round in Sterling’s diverse weather conditions.

A Sterling Reputation in Sterling, VA

Mannix Heating and Cooling has grown to become the preferred choice for residents of Sterling, VA, in need of HVAC services. Our commitment to customer satisfaction is unrivaled. From the moment you contact us for an HVAC system evaluation to the completion of our services, Mannix Heating and Cooling guarantees a hassle-free and satisfactory customer experience.

Through the years, our efforts have earned us a sterling reputation in Sterling, VA and surrounding areas. If you’re looking for a knowledgeable, reliable, and experienced HVAC contractor in Sterling, Mannix Heating and Cooling is the name to trust. Contact us today, and let our dedicated team of experts provide solutions for all your HVAC 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
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
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
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
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
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
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
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
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