Old Dominion Supply
HVAC contractor in Severn, MD 21144
About this company
Old Dominion Supply is listed as an HVAC contractor at 7765 Old Telegraph Rd in Severn, Maryland, in Anne Arundel County. It is one of 5 HVAC companies in ZIP 21144.
Other HVAC companies nearby
Chill-Craft Company2600 Cabover Dr, Hanover
0.4 mi(410) 768-2257
Todd Air919 Hillcrest Rd, Hanover
0.5 mi(301) 938-9734
Affordable Heating & Cooling1011 Morgan Station Dr, Severn
0.8 mi(410) 465-6120
One Hour Heating & Air Conditioning7484 Candlewood Rd, Hanover
1.2 mi(443) 312-9454
All About Air Heating and Air-conditioning LLC8324 Dubbs Dr, Severn
2.7 mi(443) 694-1601
Housing market around ZIP 21144
Figures describe the local area, not this company.
Typical home value$515,000+1.3% past year · +49% in 10 years
Typical rent$2,234−1.0% past year
12-month value outlook+0.5%Roughly flat
New homes permitted, 20251,844Anne Arundel 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: Anne Arundel County permitted 1,844 new homes in 2025, including 971 apartment units. 32% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.