About Us YOUR #1 INDOOR COMFORT SPECIALISTS

About Air Treatment Company

A Fairfax HVAC Company You Can Count On

For over 58 years, Air Treatment Company has provided professional, high-quality HVAC services in Fairfax, Great Falls, Reston, as well as Loudoun County and Arlington County. Our company consists of professional and skilled HVAC technicians who will listen to your needs and concerns, and help you determine the right products or services for your home. We are capable of working with any make and model of AC, heater, hot water heater, generator, or indoor air quality products. Our technicians are devoted to providing friendly, personalized customer service with the necessary technical skills to get your heating or cooling job done right the first time. Ultimately, our goal is to help you make your house a safe and comfortable place to come home to.

Contact us today for unparalleled HVAC services today!

An Incredible Experience for Every Customer

At Air Treatment Company, we are passionate about the quality of our services. When you call us, a friendly service representative will be there to answer your questions and help you schedule an appointment.

Once you’ve hired us to work on your heating and cooling systems, you can expect:

  • A professional technician will arrive on time
  • We’ll use shoe covers and drop cloths to keep your home clean
  • We’ll perform a thorough analysis, present a diagnosis, and explain our findings, answering any questions you may have along the way
  • We’ll provide an upfront estimate for the cost of our work
  • We’ll clean up our work area thoroughly
  • We’ll follow up with you by phone after your appointment to make sure you are happy with our work

We take pride in our dedication to customer service. When you are already stressed about a heating or cooling problem, you shouldn’t have to worry about the quality of the company you’ve hired. You can count on Air Treatment Company to provide honest advice, fair prices, and exceptional work. We are a top-rated Fairfax HVAC company ready to help you with any job, be it a heater or AC repair, duct cleaning, or a water heater installation.

Call us today at (703) 270-0881 to see how we can help you with your next heating and cooling project.

  • Carrier President's Award
  • Angie's List
  • Quality One
  • Tysons
  • BBB Accredited
  • NCI
  • RSES
  • NFPA
  • ASHRAE

100% Satisfaction Is Our Guarantee!

Hear What Our Customers Have to Say
  • “I feel in great hands.”

    Mary D.

  • “If you ever need your a/c or heat fixed, don't hesitate to call this company”

    Devin B.

  • “We've been doing business with Air Treatment Co for several decades now.”

    Celeste L.

  • “Would absolutely call again in the future!”

    Erickson F.

  • “Tried Air treatment company and they came that afternoon, got it working right away.”

    Anita M.

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

    Judy C.

  • “Sarah was very responsive to my scheduling needs for which I am very grateful.”

    Kevin

  • “Thanks you ATC for how you served us.”

    Sir G.

  • “I trust them completely.”

    Robin G.

  • “Justin was super knowledgeable and beyond helpful.”

    Gabriela R.

  • “Quick, professional & always there when needed.”

    Jeffrey

  • “Very helpful and knowledgeable.”

    Meredith B.

  • “We liked their service so well we never looked else-where when we needed a new furnace.”

    Beverley V.

  • “Air Treatment Company should be every home owner's HVAC company!”

    Christin K.

  • “I have been a customer for a long time.”

    Irene c.

Comfort You Can Count On

  • Stellar Workmanship at Affordable Prices

  • Free & Detailed
    In-Person Estimates

  • Highly Trained & NATE Certified Technicians

  • Full-Service Heating & Cooling Company

Schedule a Service

We'll Get the Place Feeling Just Right!
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