HVAC companies in Waltham, MA 02451
8 HVAC companies, with local market data for this ZIP.
General contractors 30Roofing and exteriors 9HVAC 8Concrete and masonry 8Electricians 4Remodeling 3Carpentry, drywall and windows 3Painting 3Flooring and tile 2Other construction trades 2Garage doors 1
Area profitability, HVAC62 / 100Strong market, crowded field
Typical home value$795,000+0.2% in the past year
New homes permitted, 20252,341Middlesex County
Homeowners59.3%7,544 households
Source: Zillow (home value and housing demand in the score), data through Sep 2026. Permits and households: U.S. Census Bureau.
ABL Comfort Solutions HVACHVAC contractor · 703 Main St, Waltham(781) 363-5586 · ablhvac.us
Burns Mechanical Corp.HVAC contractor · 110 Columbus Ave, Waltham(781) 899-2366 · burnsmechanicalcorp.net
C & D Plumbing & Heating Co.HVAC contractor · 173 Seminole Ave, Waltham(781) 893-6730 · supplyncg.com
C.R. Fremault Plumbing & HeatingHVAC contractor · 24 Woodlawn Ave, Waltham(781) 899-6392 · fremault.com
Dagostino HeatingHVAC contractor · 10 Dale St, Waltham(617) 590-5775 · dagostinoheating.com
Elite Mechanical Corp.HVAC contractor · 17 Prospect Hill Rd, Waltham(781) 899-0222 · elitemechanicalcorp.net
Ken's HVAC ServiceHVAC contractor · 28 College Farm Rd, Waltham(857) 488-7470 · kenhvacservice.com
Leblanc MechanicalHVAC contractor · 1250 Main St, Waltham(781) 899-3984 · leblancmechanical.net
HVAC in ZIP 02451 at a glance
Local building angle: Middlesex County permitted 2,341 new homes in 2025, including 1,372 apartment units. 12% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.