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, 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
  • “This is an A++ company all the way!”

    Kurt G.

  • “I am blown away be their excellent service.”

    Mary D.

  • “Their staff is consistently courteous and very professional.”

    Ralph P.

  • “They are a very professional and trustworthy organization.”

    Abe H.

  • “As always, a good experience.”
  • “Polite, professional and timely.”

    Sam L.

  • “Extremely happy with the service provided, and to have the A/C back up and running quickly.”

    Gary k.

  • “ The ATC team, never missed a beat - from making sure we got warranty credit to installing the system the day the spares arrived. Thank you all!”

    Adam S.

  • “Their prices are good their work is very professional.”

    Janet R.

  • “All of the workers are reliable and helpful.”

    Joan B.

  • “Absolutely top notch service provider.”

    Adrian L.

  • “Very professional and a real joy to speak to while he performed his job to repair my broken A/C.”

    Scott S.

  • “They have kept me in great shape and are dependable and reliable.”

    Bud L.

  • “We have used Air Treatment before and are very impressed with their service.”

    Colgate S.

  • “Justin was super knowledgeable and beyond helpful.”

    Gabriela R.

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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