HVAC companies in Havre de Grace, MD 21078
4 HVAC companies, with local market data for this ZIP.
General contractors 8HVAC 4Electricians 4Concrete and masonry 3Roofing and exteriors 3Carpentry, drywall and windows 2Painting 2Fences and decks 2Flooring and tile 1Garage doors 1Other construction trades 1Remodeling 1
Area profitability, HVAC62 / 100Strong market, crowded field
Typical home value$405,000+0.6% in the past year
New homes permitted, 2025715Harford County
Homeowners77.0%8,313 households
Source: Zillow (home value and housing demand in the score), data through Sep 2026. Permits and households: U.S. Census Bureau.
Aero Energy Havre de GraceHVAC contractor · 1751 Pulaski Hwy, Havre de Grace(410) 939-3300 · AeroEnergy.com
Joy AirHVAC contractor · 4324 Rock Run Rd, Havre de Grace(410) 399-4833 · Joyairhvac.simplesite.com
Level Heating & Air ConditioningHVAC contractor · 908 Pulaski Hwy, Havre de Grace(888) 810-2771 · levelheating.com
Lee’s Heating & Air ConditioningHVAC contractor · 4409 Webster Lapidum Rd, Havre De Grace(443) 827-7869
HVAC in ZIP 21078 at a glance
Local building angle: Harford County permitted 715 new homes in 2025, including 137 apartment units. 28% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.