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House with Tree

Fairfax HVAC Company

Serving Great Falls, Reston, Loudoun County & Arlington County

Need HVAC services in Northern VA? Give the Air Treatment Company a call! We're equipped to handle it all, big or small. For over half a century, our highly trained and skilled technicians have delivered premier heating, cooling, duct cleaning, and indoor air quality services to residences throughout Fairfax, McLean, Reston, Vienna, and the surrounding communities. It is our mission to make your household a more comfortable and safer environment, so that when you get home at night, you'll be able to kick back and relax without having to worry about it being too hot or too cold. That's just the Air Treatment Company way!

We take pride in the reputation that we have built over the years, and are considered to be a top-rated company in our industry. Our dedication is to providing fast and friendly service, as well as getting the job done right the first time. You can count on us to arrive on-time, and in time, to service your needs.

The Air Treatment Company Difference

At Air Treatment Company, we respond to all service calls in a prompt and courteous manner. When we arrive at your home, we come with the intention of leaving it in even better shape than when we came. Before any work has been started, we'll thoroughly assess the issues at hand and provide you with solutions best-tailored to your needs. We also offer upfront quotes so that you'll know what we're paying for prior to fulfilling your service call. Your satisfaction is our guarantee!

100% Satisfaction Guaranteed

Providing Top-Quality Heating, Cooling, and Indoor Air Quality Services Since 1958

Why Choose
Air Treatment Company?

  • Affordable Coupons & Specials Available.
  • Superior Workmanship at Competitive Rates.
  • We Provide Free, In-Person Service Estimates.
  • NATE Certified & Extensively Experienced Techs.
  • Customer Comfort & Satisfaction are Prioritized.
  • Carrier President's Award
  • Angie's List
  • Quality One
  • Tysons
  • BBB Accredited
  • NCI
  • RSES
  • NFPA
  • ASHRAE

Hear from Our
Happy Customers

  • Air Treatment is the best HVAC company I have ever worked with.

    “Incredibly responsive, professional, caring, and reliable!”

    Judy C.

  • Excellent prompt service.

    “Gave a good explanation of what the problem was, what they did to fix it.”

    M K.

  • The Air Treatment Company technician was thorough and knowledgeable.

    “He was also able to explain in a very understandable way what had happened to the system and what he had done to bring it back online.”

    Clair A.

  • Cannot possibly give a higher recommendation.

    “Excellent communication with clients, service teams like Cameron & Daniel are punctual, focused and can explain anything in layman's terms.”

    Glenn C.

  • I am blown away be their excellent service.

    “Their technicians are extremely well trained.”

    Mary D.

Our Location

Proudly Serving Fairfax County & Surrounding Areas

703.270.0881

518 Mill Street NE
Vienna, VA 22180
Map & Directions [+]

Request Service Emergency Services Available

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Ceiling Lamp Top Notch Service Everytime

Choose Air Treatment Company for your heating, cooling, duct cleaning, and indoor air quality needs today! We're dedicated to servicing all your indoor comfort needs. We'll have your home feeling right every time you walk through the door.

Get Comfortable