HVAC companies in Chelmsford, MA 01824

4 HVAC companies, with local market data for this ZIP.

Area profitability, HVAC67 / 100Strong market, balanced field
Typical home value$709,000+1.1% in the past year
New homes permitted, 20252,341Middlesex County
Homeowners82.3%9,868 households

Source: Zillow (home value and housing demand in the score), data through Sep 2026. Permits and households: U.S. Census Bureau.

Dodge Cooling & HeatingHVAC contractor · 6 Jonathan Ln, Chelmsford(978) 250-4064 · dodgecooling.com
Dodge Cooling and HeatingHVAC contractor · 187 Billerica Rd Ste 6, Chelmsford(978) 250-4064 · dodgecooling.com
Kendall Boiler & Tank Co.HVAC contractor · 11 Katrina Rd, Chelmsford(978) 256-0000 · kendallboiler.com · 4 drivers, 2 trucks
Milltown Plumbing, Heating, Air Conditioning and Drain CleaningHVAC contractor · 131 Steadman St #6, Chelmsford(978) 616-7412 · milltownplumbing.com · 8 drivers, 6 trucks
Nazzaro & Sons Plumbing & HeatingHVAC contractor · 145 Steadman St, Chelmsford(978) 256-3586 · nazzaroplumbing.com

HVAC in ZIP 01824 at a glance

Local building angle: Middlesex County permitted 2,341 new homes in 2025, including 1,372 apartment units. 10% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.