Heater & AC Repair in Fairfax

Expert Service for Repairs of Any Size

At Air Treatment Company, we understand the importance of coming home to a comfortable house. When the heater or AC breaks down, we are here to help. Our technicians are NATE certified and experienced in diagnosing and repairing all types of heating and air conditioning problems. No one provides better heater and AC repair in Fairfax than Air Treatment Company.

Home Heating Repair Service

If your heater stops working, you can rely on our expert technicians to accurately diagnose and quickly repair the problem. We start with a full evaluation of your system to locate the source of the problem. Our technicians will listen to your concerns, explain the problem with your equipment, and give you repair options so that you can make the best decision for your home.

Give us a call if you are having a problem such as:

  • No heating at all
  • Lack of sufficient heat to warm your home
  • Your heating system won’t turn on or off
  • Your furnace is showing an error code
  • Your thermostat is blank
  • Malfunctioning heat pump

    Our company was built on providing quality work and great customer service. Air Treatment Company is where quality and price meet. You can always expect excellent service from our technicians. We respect your time and your property. Our techs arrive within the promised time frame, wear shoe covers to protect your home, and clean up the work area when the job is complete.

    Call Today for Expert Air Conditioner Repairs

    If your air conditioner is not functioning as it should, give us a call. Our HVAC technicians offer Fairfax AC repair for all types of problems, including air conditioners that are not cooling enough, water leaks from the system, units that won’t turn off or on, problems with the thermostat, and issues with humidity levels. We will diagnose the problem, offer repair options, and perform all work to your satisfaction.

    Contact us today to schedule an appointment for Fairfax heater repair or AC repair.

    • 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
    • “They are the only ones I trust with my AC/Heat.”

      Ron P.

    • “Quick service. They came out the same day I called.”

      Jason S.

    • “This is one of the best family-owned businesses I've dealt with”

      Sam A.

    • “I highly recommend him and his company for top-notch service.”

      Cookie L.

    • “I feel in great hands.”

      Mary D.

    • “This was probably my best experience with a HVAC contractor to date.”

      Nityanand R.

    • “Great service, great staff, great work.”


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

      Scott S.

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

      Beverley V.

    • “As professional as a company can get”

      Matt B.

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

      Nancy D.

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

      Kurt G.

    • “Great insight into airflow and maximizing current setup.”

      Marc P.

    • “Fast service, quick identification of the problem, and easy solution.”


    • “Money well spent.”

      Chris S.

    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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