HVAC companies in Islip, NY 11706
10 HVAC companies, with local market data for this ZIP.
General contractors 111Concrete and masonry 28Roofing and exteriors 18Other construction trades 12Remodeling 12HVAC 10Electricians 9Painting 5Carpentry, drywall and windows 5Excavation and demolition 4Flooring and tile 2Fences and decks 2
Area profitability, HVAC62 / 100Strong market, balanced field
Typical home value$657,000+4.6% in the past year
New homes permitted, 20251,399Suffolk County
Homeowners75.0%19,324 households
Source: Zillow (home value and housing demand in the score), data through Sep 2026. Permits and households: U.S. Census Bureau.
Ace Shore MechanicalHVAC contractor · 58 Brook St, Islip(631) 665-4777 · aceshoremechanicalny.com
Bay Shore Fuel CoHVAC contractor · 45 Lakeview Ave, Bay Shore(631) 665-8800 · bayshorefuel.com · 1 driver, 1 truck
Bay Shore Hvac CorpHVAC contractor · 225 N Fehr Way, Bay Shore(631) 518-4421 · apollohvac.com
Duro Dyne CorporationHVAC contractor · 81 Spence St, Bay Shore(631) 249-9000 · durodyne.com · 2 drivers, 1 truck
Hendrickson FuelsHVAC contractor · 45 Lakeview Ave, Bay Shore(631) 665-0023 · hendricksonfuels.com · 3 drivers, 5 trucks
Loyal Building ServicesHVAC contractor · 41 Degnon Blvd, Bay Shore(631) 647-4040 · loyalbuildingservices.com
Wilson's Plumbing Heating HVAC & ElectricHVAC contractor · 1062 Udall Rd, Bay Shore(631) 855-5832 · wilsonplumbinghvac.com
Air-Tech Cooling & HeatingHVAC contractor · 1432 5th Ave, Bay Shore(631) 894-7521
herber plumbingHVAC contractor · 54 Park Ave, Bay Shore(631) 666-1036
Manatuck Heating & Air ConditioningHVAC contractor · 1732 Manatuck Blvd, Bay Shore(631) 875-8925 · 1 driver, 1 truck
HVAC in ZIP 11706 at a glance
Local building angle: Suffolk County permitted 1,399 new homes in 2025, including 287 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.