HVAC companies in Ronkonkoma, NY 11779
21 HVAC companies, with local market data for this ZIP.
General contractors 60HVAC 21Concrete and masonry 20Other construction trades 18Electricians 14Roofing and exteriors 8Carpentry, drywall and windows 7Painting 6Remodeling 5Fences and decks 3Garage doors 2Excavation and demolition 2Flooring and tile 2
Area profitability, HVAC54 / 100Strong market, crowded field
Typical home value$651,000+6.0% in the past year
New homes permitted, 20251,399Suffolk County
Homeowners75.7%13,091 households
Source: Zillow (home value and housing demand in the score), data through Sep 2026. Permits and households: U.S. Census Bureau.
Accelerated ServicesHVAC contractor · 158 Remington Blvd, Ronkonkoma(934) 246-6376 · acceleratedhvac.com · 2 drivers, 1 truck
Accu-Temp Heating & CoolingHVAC contractor · 140 Raynor Ave, Ronkonkoma(631) 615-7255 · accu-tempcorp.com
Airmax Long Island IncHVAC contractor · 720 Koehler Ave, Ronkonkoma(631) 737-5566 · airmaxli.com · 2 drivers, 2 trucks
Cas HVACHVAC contractor · 856 Johnson Ave, Islip(631) 759-4508 · casequip.com
Cool Power LLCHVAC contractor · 75 Air Park Dr, Ronkonkoma(631) 600-7994 · coolpowerac.com · 3 drivers, 3 trucks
Dynamic Air Conditioning, Inc.HVAC contractor · 2231 5th Ave, Ronkonkoma(718) 886-7400 · dynamicac.com · 1 driver, 1 truck
Energywise, Inc.HVAC contractor · 2231 5th Ave, Suite 26, Ronkonkoma(631) 228-8401 · energywiseac.com · 2 trucks
Home Efficiency ExpertsHVAC contractor · 200 Trade Zone Dr, Ronkonkoma(631) 613-8739 · homeefficiencyexperts.com
Joseph Bruno Plumbing & HeatingHVAC contractor · 100 Breeze Ave, Ronkonkoma(631) 737-6263 · josephbrunoplumbing.com
Long Island's Burner KingHVAC contractor · 2221 5th Ave Ste 1 & 2, Ronkonkoma(631) 738-9279 · burnerking.com · 8 drivers, 8 trucks
Marine SpecialistHVAC contractor · 2231 5th Ave, Islip(631) 580-0545 · marinespecialists.net
Master Cooling & Heating Systems Inc.HVAC contractor · 780 Marconi Ave, Ronkonkoma(631) 467-5599 · mastercoolingandheatingsystems.com · 1 driver, 1 truck
Michael James IndustriesHVAC contractor · 11 Drew Ct, Ronkonkoma(631) 231-3434 · mjiservices.com
Mustang heating & airHVAC contractor · 75 Rose Dr, Ronkonkoma(631) 871-4762 · mustangheatingandair.com
Nice Air ConditioningHVAC contractor · 870 Marconi Ave, Islip(516) 315-5928 · niceheatingandairconditioning.com
Sam Mechanical IncHVAC contractor · 154 Remington Blvd, Ronkonkoma(631) 484-1198 · sammechanical.net
Sav Mor Mechanical, Inc.HVAC contractor · 30 Howard Pl Ste B, Ronkonkoma(631) 467-8585 · savmormechanical.com · 4 drivers, 1 truck
Shona Mechanical, Inc.HVAC contractor · 420 Peconic St, Ronkonkoma(631) 675-0609 · shonamechanical.com
Yas Hvac CorporationHVAC contractor · 25 Union Ave, Brookhaven(631) 656-3313 · yashvac.com · 1 driver
Greentech MechanicalHVAC contractor · 100 Raynor Ave, Islip(631) 427-2299
Sony Heating and CoolingHVAC contractor · 91 Brunswick Rd, Brookhaven(631) 452-0614
HVAC in ZIP 11779 at a glance
Local building angle: Suffolk County permitted 1,399 new homes in 2025, including 287 apartment units. 8% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.