(703) 549-5700
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Making Homes More Comfortable Since 1885

T.J. Fannon & Sons is dedicated to providing the best HVAC services in Northern Virginia. Find out the difference working with a company with over a century of experience makes!

Our Partners

Thomas J. Fannon & Sons is proud to work with the following industry-leading brands:

  • Weil-McLain
  • Carrier Factory Authorized Dealer
  • AO Smith Vector
  • Nextdoor Neighborhood Favorite HVAC 2023
About Us
About Us

For over 135 years, Thomas J. Fannon & Sons has provided homeowners with the fuel and the equipment to effectively heat and cool their homes. We owe this success to our professionalism, reliability and first-class products and services.

Learn More About Us
Over 100 Years of Experience
We’ve served our local community for well over 100 years, allowing us to provide a level of expertise that only a handful of companies can match.
Our Commitment to You
We are an established company and we’re here for you. Thomas J. Fannon & Sons can provide you with the support you need after your HVAC project.
High-Quality HVAC Systems
We install world-class furnaces and air conditioning systems from Carrier®. Our HVAC systems are energy-efficient, reliable and long-lasting.
Testimonials
Best Heating and A/C company in the DMV! I have gone through my share of Heating and A/C companies and I have never found one as attentive and quick responding as TJ Fannon & Sons. I have had multiple problems with a gas furnace with multiple prior companies. Fannon came, installed and live up to th
Anthony M.
Thomas J. Fannon & Sons is committed to quality so expect only the best HVAC services when you work with us.
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