HVAC companies in Harwich, MA 02645
2 HVAC companies, with local market data for this ZIP.
General contractors 19Concrete and masonry 6Carpentry, drywall and windows 3Excavation and demolition 3Remodeling 3Painting 2Electricians 2Roofing and exteriors 2HVAC 2Garage doors 1Other construction trades 1Fences and decks 1
Area profitability, HVAC61 / 100Strong market, balanced field
Typical home value$763,000+4.0% in the past year
New homes permitted, 2025630Barnstable County
Homeowners84.4%4,831 households
Source: Zillow (home value and housing demand in the score), data through Sep 2026. Permits and households: U.S. Census Bureau.
Kalinowski MechanicalHVAC contractor · 25 Victoria Rd, Harwich(508) 430-4374 · kalmech.com · 1 driver, 1 truck
Thane Welsh Heating and CoolingHVAC contractor · 243 Chatham Rd, Harwich(508) 430-0749 · thanewelshheatingandcooling.com
HVAC in ZIP 02645 at a glance
Local building angle: Barnstable County permitted 630 new homes in 2025, including 252 apartment units. 16% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.