HVAC companies in Frederick, MD 21702
3 HVAC companies, with local market data for this ZIP.
General contractors 37Roofing and exteriors 5Concrete and masonry 5Remodeling 5Electricians 4HVAC 3Fences and decks 3Other construction trades 2Garage doors 2Painting 1Flooring and tile 1
Area profitability, HVAC68 / 100Strong market, balanced field
Typical home value$452,000−1.0% in the past year
New homes permitted, 20251,168Frederick County
Homeowners65.2%17,730 households
Source: Zillow (home value and housing demand in the score), data through Sep 2026. Permits and households: U.S. Census Bureau.
Bob Wright's ServiceHVAC contractor · 4806 Old National Pike, Frederick(301) 698-0272 · dealer.frigidaire.net
Harris Wood Boilers LLCHVAC contractor · 7818 Edgewood Church Rd, Frederick(301) 788-3670 · harriswoodboilers.com
Harris Heating & CoolingHVAC contractor · 7818 Edgewood Church Rd, Frederick(301) 473-8126 · 2 drivers, 1 truck
HVAC in ZIP 21702 at a glance
Local building angle: Frederick County permitted 1,168 new homes in 2025, including 354 apartment units. 29% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.