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, 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 can't say enough about the professionalism from Air Treatment Company.”

    E P.

  • “He was cordial and conducted himself in a professional manner.”

    Caesar

  • “They arrive when promised and explain everything they are doing.”

    Kevin V.

  • “Explained everything and got the work done quickly.”

    Richard B.

  • “Ben was the man of the day, and Air Treatment Company pulled it all together in a matter of hours!”

    Lyn L.

  • “All work has been done quickly, cleanly and systems were up and working in no time.”

    Anita R.

  • “They were both professional, pleasant and courteous.”

    Nancy D.

  • “Service, responsiveness, and technical knowledge has been top notch.”

    Greg B.

  • “Great customer service.”

    Michele K.

  • “They did the repair job professionally and explained everything he did.”

    Hong V.

  • “ 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.

  • “Courteous, educated and took time to explain exactly what they did.”

    Pam R.

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

    Irene c.

  • “The Air Treatment Company technician was thorough and knowledgeable.”

    Clair A.

  • “They have literally saved me thousands of dollars and given me great advice and service.”

    George H.

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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