NJ Heating And Cooling
HVAC contractor in Callaway, MD 20620
About this company
NJ Heating And Cooling is listed as an HVAC contractor at 20991 Hunting Quarter Dr in Callaway, Maryland, in St. Mary's County. It is one of 1 HVAC companies in ZIP 20620.
Other HVAC companies nearby
Winters Heating & Cooling22100 Point Lookout Rd, Leonardtown
1.9 mi(301) 475-5611
Great Mills Heating & Air Conditioning21305 Great Mills Rd Unit 6, Lexington Park
2.2 mi(301) 994-0522
A Better Plumber, LLC19405 Brandon Way, Great Mills
3.4 mi(301) 994-1000
Aireco Supply22378 Three Notch Rd, Lexington Park
3.9 mi(240) 725-7682
Sta So Cool LLC22932 S Pembrook Dr, Hollywood
4.8 mi(301) 904-3936
Housing market around ZIP 20620
Figures describe the local area, not this company.
Typical home value$434,000+1.4% past year · +54% in 10 years
12-month value outlook+1.4%
Days to sale agreement14California metro · 17 a year ago
New homes permitted, 2025282St. Mary's County
Listings with a price cut29.1%California metro
Sale price vs list99.9%California metro
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: St. Mary's County permitted 282 new homes in 2025, including 10 apartment units. 15% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.