| Business | Phone |
| D S Air 49 Avenue C, Holbrook 11741 | (631) 471-4777 |
| Expansion Refrigeration Inc 178 Glenmere Way, Holbrook 11741 | (631) 472-0220 |
| Q & A Mechanical Corp Po Box 972, Holbrook 11741 | (631) 585-1328 |
| Westbury Air Conditioning Co 148 Avenue C, Holbrook 11741 | (631) 981-7298 |