HVAC companies in Mystic, CT 06355

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

Area profitability, HVAC64 / 100Strong market, crowded field
Typical home value$608,000+8.4% in the past year
New homes permitted, 2025440Southeastern Connecticut County
Homeowners81.0%5,393 households

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

Cool Boats LLCHVAC contractor · 31 Water St, Mystic(860) 536-2665 · coolboatsllc.com
Densmore Oil CompanyHVAC contractor · 1 Water St, Mystic(860) 536-7927 · densmoreoil.com · 7 drivers, 5 trucks
Millas Heating & CoolingHVAC contractor · 800 Flanders Rd, Groton(860) 415-9962 · millashc.com

HVAC in ZIP 06355 at a glance

Local building angle: Southeastern Connecticut County permitted 440 new homes in 2025, including 112 apartment units. 17% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.