About Us

Cosmos Heating & Cooling, a family owned business, has been servicing the Northern Virginia area since it was founded in 1986 by Constantis “Gus” Christofi. The one man operation thrived through unending dedication, commitment to quality, and honest hard work. For the past 8 years, with his son George at his side, the family-owned heritage continues to afford its customers with unmatched service, excellence and skilled quality work. We Are Licensed & Insured and Service All Unit Brands.