| Business | Phone |
| Lopcllc 444 Saint James St # 2, Holbrook 11741 | (631) 589-2364 |
| Bill Haiduk Plbg & Htg Co Inc 12 Halfcircle Dr, Holbrook 11741 | (631) 467-4374 |
| Manning Plumbing & Heating 926 Lincoln Ave, Holbrook 11741 | (631) 567-5878 |
| Chevalley & Wallace Plumbing 1150 Lincoln Ave # 3, Holbrook 11741 | (631) 597-7678 |
| Cliff's Plumbing & Heating 1121 Lincoln Ave, Holbrook 11741 | (631) 563-4557 |
| Geln M Wolfinger Licensed Plbg 1340 Lincoln Ave, Holbrook 11741 | (631) 580-3660 |
| Powerhouse Plumbing & Heating 1340 Lincoln Ave, Holbrook 11741 | (631) 737-2562 |
| J Il Plumbing & Htg 465 Saint James St, Holbrook 11741 | (631) 588-7240 |
| Robert O Brien Plumbing 111 Lincoln Ave, Holbrook 11741 | (631) 256-0016 |
| Robert O'Brien Plumbing 1361 Lincoln Ave, Holbrook 11741 | (631) 588-3034 |
| L & O Plumbing 444 Saint James St, Holbrook 11741 | (631) 471-3061 |
| Value Plumbing & Heating 20 Pond Rd, Holbrook 11741 | (631) 585-3826 |