| Business | Phone |
| Aero Mechanical 901 S 2nd St, Ronkonkoma 11779 | (631) 737-2119 |
| Airchitechs Inc 751 Koehler Ave # 8, Ronkonkoma 11779 | (631) 467-7780 |
| All Island Mechanical 954 S 2nd St, Ronkonkoma 11779 | (631) 361-5000 |
| Best Temp Central Ac & Htg 1755 Julia Goldbach Ave, Ronkonkoma 11779 | (631) 266-5968 |
| Best-Temp Mechanical Corp 1755 Julia Goldbach Ave, Ronkonkoma 11779 | (631) 737-3000 |
| Master Cooling & Heating 2140 Pond Rd # 3, Ronkonkoma 11779 | (631) 737-8187 |
| Master Cooling & Heating 780 Marconi Ave, Ronkonkoma 11779 | (631) 467-5599 |
| Certified Cooling & Heating 15 Greenmist Dr, Ronkonkoma 11779 | (631) 737-3821 |
| Commercial Air Heating & Clng 2540 Pine Ave, Ronkonkoma 11779 | (631) 585-9271 |
| Micro Energy 776 Marconi Ave, Ronkonkoma 11779 | (631) 285-7184 |
| Power Cool Systems Inc 100 Remington Blvd, Ronkonkoma 11779 | (631) 474-0751 |
| Solas Air Conditioning Inc 2077 9th Ave, Ronkonkoma 11779 | (631) 580-0031 |
| Total Air Comfort Inc Ronkonkoma 11779 | (631) 588-2200 |
| Wallwork New York Inc 80 13th Ave # 4, Ronkonkoma 11779 | (631) 981-4000 |