| Business | Phone |
| A 1 Expert Mechanical Svc Corp 151 W Industry Ct # 23, Deer Park 11729 | (631) 243-1122 |
| Cynan Sheetmetal 513 Acorn St # H, Deer Park 11729 | (631) 586-4871 |
| Factory Service Parts Controls 517 Commack Rd, Deer Park 11729 | (631) 243-2000 |
| Pyramid Air Conditioning Inc 90 E Jefryn Blvd # D, Deer Park 11729 | (631) 242-3355 |
| L T Mechanical 30 Eastern Ave, Deer Park 11729 | (631) 595-1600 |
| York International Sales 14 Burt Dr, Deer Park 11729 | (631) 586-3436 |