Thomas J. Fannon & Sons

4.2(72 reviews on Google)

HVAC contractor listing in Alexandria, VA

About Thomas J. Fannon & Sons

Thomas J. Fannon & Sons began in 1885 as a coal and wood seller at Duke and Henry Streets in Alexandria and grew into a heating and cooling company that is still family owned. It made its first oil delivery in the twenties, then moved into oil heating equipment, natural gas appliances and, as central air spread in the sixties, air conditioning. Today it installs and services air conditioning systems, heat pumps, ductless mini splits and gas and oil heating equipment, and it handles conversions, boilers, water heaters and indoor air quality work. Replacements, retrofits and new installations are all part of the work, and free estimates are offered. Separate service agreements cover oil systems and gas and heat pump systems. Rated 4.2 from 72 Google reviews, 54 of them five stars and 13 one star.

What reviewers mention: competent staff (3), family business (3), furnace repair (3), troubleshooting (3), responsiveness (3), warranty (2), timeliness (2), helpfulness (2), affordable (2), efficient (2)

Services and details

  • Residential heating and cooling repair

    Yes
  • Heat pump installation and repair

    Yes
  • Ductless mini-split systems

    Yes
  • Gas and oil furnace service

    Yes
  • Maintenance plans or tune-ups

    Yes
  • Free estimates on replacements

    Yes
  • Indoor air quality and duct work

    Yes

No information yet on 24/7 emergency service, geothermal systems, financing available, states a Virginia contractor license, states EPA 608 or NATE certification, commercial HVAC, se habla español. The website did not say; call and ask.

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Listing compiled from public sources on 2026-11-05. Report a correction or request removal. Back to HVAC contractors in Alexandria.