South Mountain Mechanical Contractors Inc.
HVAC contractor in Woodbine, MD 21797
About this company
South Mountain Mechanical Contractors Inc. is listed as an HVAC contractor at 15940 Frederick Rd in Woodbine, Maryland, in Howard County. It is one of 1 HVAC companies in ZIP 21797.
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Housing market around ZIP 21797
Figures describe the local area, not this company.
Typical home value$800,000+2.4% past year · +54% in 10 years
12-month value outlook+0.5%Roughly flat
Days to sale agreement16Baltimore metro · 14 a year ago
New homes permitted, 2025728Howard County
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: Howard County permitted 728 new homes in 2025, including 379 apartment units. 18% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.