HVAC companies in Keymar, MD 21757
2 HVAC companies, with local market data for this ZIP.
General contractors 5HVAC 2Fences and decks 1Concrete and masonry 1Roofing and exteriors 1Painting 1Carpentry, drywall and windows 1Other construction trades 1
Area profitability, HVAC56 / 100Strong market, crowded field
Typical home value$454,000+0.6% in the past year
New homes permitted, 2025153Carroll County
Homeowners82.4%1,068 households
Source: Zillow (home value and housing demand in the score), data through Sep 2026. Permits and households: U.S. Census Bureau.
Kaufman's Heating & Air LLCHVAC contractor · 12467 Woodsboro Pike, Keymar(301) 898-9191
Lind Heating & Cooling IncHVAC contractor · Keymar(301) 898-7754 · 2 drivers, 1 truck
HVAC in ZIP 21757 at a glance
Local building angle: Carroll County permitted 153 new homes in 2025. 17% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.