Test and Balancing
HVAC contractor in Halethorpe, MD 21227
About this company
Test and Balancing is listed as an HVAC contractor at 3922 Vero Rd in Halethorpe, Maryland, in Baltimore County. It is one of 13 HVAC companies in ZIP 21227.
Other HVAC companies nearby
Warthen4012 Benson Ave, Halethorpe
0.2 mi(410) 242-0990
Columbia Heating Products1409 Rome Rd, Halethorpe
0.2 mi(410) 242-5300
United Products Distributors4030 Benson Ave, Halethorpe
0.2 mi(410) 866-6800
T & D Plumbing & Heating1628 Sulphur Spring Rd, Halethorpe
0.9 mi(410) 242-8850
Beltway Air Conditioning & Heating1587 Sulphur Spring Rd Ste 109, Arbutus
1.0 mi(443) 727-1399
Housing market around ZIP 21227
Figures describe the local area, not this company.
Typical home value$305,000+0.5% past year · +55% in 10 years
Typical rent$1,487−0.4% past year
12-month value outlook+0.5%Roughly flat
New homes permitted, 20251,531Baltimore 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: Baltimore County permitted 1,531 new homes in 2025, including 379 apartment units. 5% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.