| Business | Phone |
| Accu Air Inc Heating 146 Palmer St, Brentwood 11717 | (631) 273-0710 |
| Air Form Industries 96 Cain Dr, Brentwood 11717 | (631) 273-5503 |
| Alpine Mechanical Systems Inc 38 Cain Dr, Brentwood 11717 | (631) 273-2602 |
| Sjm St James Mechanical Inc 94 Cain Dr, Brentwood 11717 | (631) 273-5833 |