HVAC companies in Herndon, VA 20170

6 HVAC companies, with local market data for this ZIP.

Area profitability, HVAC74 / 100Strong market, balanced field
Typical home value$688,000+1.2% in the past year
New homes permitted, 20252,862Fairfax County
Homeowners68.3%13,613 households

Source: Zillow (home value and housing demand in the score), data through Sep 2026. Permits and households: U.S. Census Bureau.

911Air-CareHVAC contractor · 1210 Autumn Pl, Herndon(571) 910-9901 · 911air-care.com
AAA HVAC ServicesHVAC contractor · 1043 Sterling Rd Ste 101, Herndon(703) 825-4973 · aaahvacservices.net
Cardinal Plumbing Heating & Air IncHVAC contractor · 464 Herndon Pkwy Ste 216a, Herndon(703) 782-5055 · cardinalplumbingva.com
Marco & Son AC & HeatingHVAC contractor · 13359 Parcher Ave, Herndon(703) 609-0956 · marcoandson.com
Sears Heating and Air ConditioningHVAC contractor · 494 Elden St, Herndon(571) 774-5207 · searshomeservices.com
T&T Associates, Inc.HVAC contractor · 1515 Summerset Pl, Herndon(703) 478-3993 · tandthvac.com

HVAC in ZIP 20170 at a glance

Local building angle: Fairfax County permitted 2,862 new homes in 2025, including 2,122 apartment units. 15% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.