HVAC companies in Islip, NY 11751
2 HVAC companies, with local market data for this ZIP.
General contractors 17Concrete and masonry 3Roofing and exteriors 2HVAC 2Other construction trades 1Garage doors 1Flooring and tile 1Carpentry, drywall and windows 1Fences and decks 1Painting 1
Area profitability, HVAC63 / 100Strong market, balanced field
Typical home value$675,000+5.9% in the past year
New homes permitted, 20251,399Suffolk County
Homeowners83.4%5,010 households
Source: Zillow (home value and housing demand in the score), data through Sep 2026. Permits and households: U.S. Census Bureau.
Proven HVAC CorpHVAC contractor · 225 Main St, Islip(631) 630-6604 · getprovenhvac.com
Schillco Mechanical Inc.HVAC contractor · 142 Freeman Ave, Islip(631) 650-9658 · schillco.net · 1 driver, 1 truck
HVAC in ZIP 11751 at a glance
Local building angle: Suffolk County permitted 1,399 new homes in 2025, including 287 apartment units. 4% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.