Cosmos Heating and Cooling

4.9(91 reviews on Google)

HVAC contractor listing in Lorton, VA

About Cosmos Heating and Cooling

Cosmos Heating and Cooling is a family owned business on Gunston Cove Road in Lorton that serves Northern Virginia, the Washington D.C. metro area and much of Maryland. It repairs and installs air conditioners, heaters and heat pumps, services boilers, and works on all unit brands. Planned preventive service agreements, inspections, energy efficiency upgrades and indoor air quality work are on the list. Emergency service runs 24/7, free estimates cover replacement systems for homes and commercial properties, and financing is offered. The company states it is licensed and insured and serves residential, commercial and industrial customers. Open positions for technicians and installers are posted, and it backs its work with a satisfaction guarantee. Rated 4.9 from 91 Google reviews, 87 of them five stars.

What reviewers mention: fair pricing (9), responsive team (5), furnace repair (4), heat pump replacement (3), air duct cleaning (3), appointment scheduling (3), quick installation (2), flat pricing (2), timely responses (2), no sales tactics (2)

Services and details

  • Residential heating and cooling repair

    Yes

  • 24/7 emergency service

    Yes

  • Heat pump installation and repair

    Yes

  • Gas and oil furnace service

    Yes

  • Maintenance plans or tune-ups

    Yes

  • Financing available

    Yes

  • Free estimates on replacements

    Yes

  • Indoor air quality and duct work

    Yes

  • States a Virginia contractor license

    Yes

  • Commercial HVAC

    Yes

No information yet on ductless mini-split systems, geothermal systems, states EPA 608 or NATE certification, 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 Lorton.