Joy Air
HVAC contractor in Havre de Grace, MD 21078
About this company
Joy Air is listed as an HVAC contractor at 4324 Rock Run Rd in Havre de Grace, Maryland, in Harford County. It is one of 4 HVAC companies in ZIP 21078.
Other HVAC companies nearby
Lee’s Heating & Air Conditioning4409 Webster Lapidum Rd, Havre De Grace
1.4 mi(443) 827-7869
Aero Energy Havre de Grace1751 Pulaski Hwy, Havre de Grace
5.2 mi(410) 939-3300
Force Mechanical Services3104 Aldino Rd, Churchville
5.9 mi(443) 582-9920
Watson's Plumbing & Heating110 Bouzarth Ln, Aberdeen
6.2 mi(410) 666-3060
Total Energy Concepts653 W Bel Air Ave, Aberdeen
6.3 mi(410) 399-5667
Housing market around ZIP 21078
Figures describe the local area, not this company.
Typical home value$405,000+0.6% past year · +50% in 10 years
Typical rent$1,929
12-month value outlook+0.6%Roughly flat
New homes permitted, 2025715Harford County
Days to sale agreement16Baltimore metro · 14 a year ago
Listings with a price cut30.2%Baltimore metro
Sale price vs list100.1%Baltimore metro
New construction sales122Baltimore metro, Aug · −37% from last year
Source: Zillow (home values, rent, outlook and metro sales), data through Sep 2026. Permits: U.S. Census Bureau.
Typical home value, last 10 years
Source: Zillow Home Value Index, Sep 2026.
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.