Each Trademasters technician has an average of 6 certifications. We don’t just claim to be the best.

We offer a full range of residential and commercial heating & AC and plumbing services to businesses in the Northern Virginia and Washington DC Metro area.

CALL NOW: 703-644-6400

Trademasters is a heating, air conditioning, and plumbing contractor based in Lorton, VA that has been proudly serving the Washington, DC area since 1990.

Do you need servicing for your home?

No matter what the weather is like outside — hot, cold, wet, or dry — our priority is to keep you comfortable in your home. We are here to keep your home at the perfect temperature and your energy bills low, in every season.

Commercial Heating & AC

We know how vital it is for your business to have properly functioning equipment. Whether you’re a startup or an organization with hundreds of employees, a sound HVAC system will save on costs and help keep your employees comfortable and productive all year long.

24-Hour Emergency HVAC Services

Not only do we have full-time office staff to answer calls during normal business hours,  but we also have a live after-hours answering service to take your calls in the event of an emergency. Emergencies are everyone’s nightmare and we’re here to help save the day. 

Our technicians are all highly trained, industry certified, bonded, and insured, so you can count on us to get the job done correctly.

Here’s what our customers have to say:

“Great service company! We have been customers for 10 years and have had a great relationship! Service men and plumbers always professional , knowledgeable and friendly! Signed my children up when they bought their homes.”
– Al More
“Trademasters was the third company we interviewed to do a complete HVAC replacement (air handler and air conditioner). Their representative, was not only professional and polite, but took the time to explain what combination of components would work best for our house and didn’t try to upsell us on a more expensive set-up, which earned our business. They also are an exclusive Trane dealer which was the brand name we wanted. Once they came out, I knew we made the right choice. From start to finish they were efficient, polite, and clean. They took out our old equipment and had us up and running within no time. I can’t recommend this company enough. Thanks Trademasters!”

-Katherine Voth

“While house sitting we needed emergency plumbing service and the staff at trademasters provided great service. Ashley explained everything well ALSo the plumber wore shoe covers so we didn’t have to worry about extra cleaning! Thanks!”
– Christina Townsend Williams
There are some things you shouldn’t DIY. Don’t risk it. Professional Heating and AC help is just a call away.

Areas We Serve

Fairfax County

  • Burke, VA 22009, 22015
  • Dale City, VA 22193
  • Fairfax Station, VA 22039
  • Ft. Belvoir, VA 22060
  • Hayfield, VA 22310
  • Kingstowne, VA 22315
  • McLean, VA 22101–22103, 22106
  • Mt. Vernon, VA 22309, 2212
  • Reston, VA 20190, 20191, 20194
  • Springfield, VA 22150-22153 Triangle, VA 22172


  • Annandale, VA 22003
  • Arlington, VA 22001-2209
  • Dumfries, VA 22026
  • Dunn Loring, VA 22027
  • Falls Church, VA 22040, 22042
  • Merrifield, VA 22118-22119
  • Newington, VA 22122
  • Rosslyn, VA 22209
  • Woodbridge, VA 22191–22195

Contact Us Today!


  • Phone: 800-644-6400
  • Headquarters
    7208 Lockport Pl
    Lorton, VA 22079

Areas we service: Northern Virginia (Residential and Commercial) and Southern Maryland as well as the District of Columbia (Commercial accounts only)

Northern Virginia: Lorton, Fort Belvoir, Fairfax, Clifton, Burke, Springfield, Alexandria, Arlington, Falls Church, Tyson’s Corner, Herndon, Reston, Centreville, Chantilly, Prince William County communities of Woodbridge, Manassas

    Commercial or Residential?

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