HVAC companies in Thurmont, MD 21788
2 HVAC companies, with local market data for this ZIP.
General contractors 29Concrete and masonry 4Roofing and exteriors 3HVAC 2Excavation and demolition 2Carpentry, drywall and windows 2Electricians 1Other construction trades 1Remodeling 1Flooring and tile 1
Area profitability, HVAC59 / 100Moderate market, balanced field
Typical home value$391,000+0.4% in the past year
New homes permitted, 20251,168Frederick County
Homeowners82.1%4,821 households
Source: Zillow (home value and housing demand in the score), data through Sep 2026. Permits and households: U.S. Census Bureau.
Mick's Plumbing & HeatingHVAC contractor · 27 Howard St, Thurmont(301) 271-2488 · micksplumbinghvac.com
Cornerstone Heating & Air Conditioning IncHVAC contractor · 101 Radio Ln, Thurmont(240) 674-3100 · 1 driver, 2 trucks
HVAC in ZIP 21788 at a glance
Local building angle: Frederick County permitted 1,168 new homes in 2025, including 354 apartment units. 17% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.