HVAC companies in White Marsh, MD 21162
1 HVAC companies, with local market data for this ZIP.
General contractors 18Roofing and exteriors 6Concrete and masonry 3Remodeling 3Garage doors 2Excavation and demolition 2Fences and decks 1HVAC 1Other construction trades 1Carpentry, drywall and windows 1
Area profitability, HVAC67 / 100Strong market, crowded field
Typical home value$517,000+0.1% in the past year
New homes permitted, 20251,531Baltimore County
Homeowners88.9%1,435 households
Source: Zillow (home value and housing demand in the score), data through Sep 2026. Permits and households: U.S. Census Bureau.
Hearth Product ServicesHVAC contractor · 5652 Gunpowder Rd, White Marsh(410) 529-1074 · hearthproductservices.com
HVAC in ZIP 21162 at a glance
Local building angle: Baltimore County permitted 1,531 new homes in 2025, including 379 apartment units. 48% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.