HVAC companies in Deer Park, NY 11729
10 HVAC companies, with local market data for this ZIP.
General contractors 59Concrete and masonry 17Remodeling 14Electricians 13Other construction trades 10HVAC 10Roofing and exteriors 9Carpentry, drywall and windows 6Garage doors 4Painting 3Fences and decks 3Flooring and tile 2Excavation and demolition 1
Area profitability, HVAC57 / 100Strong market, crowded field
Typical home value$683,000−0.4% in the past year
New homes permitted, 20251,399Suffolk County
Homeowners83.8%8,661 households
Source: Zillow (home value and housing demand in the score), data through Sep 2026. Permits and households: U.S. Census Bureau.
Commercial Instrumentation ServicesHVAC contractor · 681 Grand Blvd, Deer Park(631) 243-4300 · cis-ny.com · 2 drivers, 2 trucks
Deer Park Ave Heating and Air ConditioningHVAC contractor · 699 Acorn St, Babylon(631) 579-0431 · dpaheat.com
Efficient MechanicalHVAC contractor · 1649 Deer Park Ave, Babylon(516) 396-9322 · efficientmechanical.com
Five Star MechanicalHVAC contractor · 40 Burt Dr, Deer Park(516) 447-2113 · fivestarmechanical.net · 1 driver, 1 truck
HvacHVAC contractor · 681 Grand Blvd, Deer Park(631) 243-3400 · hvac-ny.com · 2 drivers, 2 trucks
K2 Heating & Air ConditioningHVAC contractor · 561 Acorn St Unit D, Deer Park(800) 531-2160 · k2mechanical.com
K2 MechanicalHVAC contractor · 561 Acorn St, Deer Park(631) 414-7141 · k2hvac.com
Metro Heating and Air ConditioningHVAC contractor · 64 Brook Ave Ste 5, Deer Park(631) 392-4094 · heatingandairconditioningdeerparkny.com
One Hour Heating and Air Conditioning of Suffolk CountyHVAC contractor · 569 Acorn St, Babylon(631) 779-4056 · onehourheatandair.com
Millennium Air Inc.HVAC contractor · 49 E Industry Ct, Deer Park(516) 840-8895 · 8 drivers, 2 trucks
HVAC in ZIP 11729 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.