| Business | Phone |
| Benjamin Franklin Certified Southampton 11968 | (631) 204-1234 |
| Bryan R Phillips Plumbing Po Box 1395, Southampton 11969 | (631) 287-1610 |
| Costal Plumbing & Heating Po Box 1425, Southampton 11969 | (631) 283-3700 |
| Okey Plumbing & Heating Inc 144 Mariners Dr # B, Southampton 11968 | (631) 725-2985 |
| Hampton Plumbing 30 Miller Rd, Southampton 11968 | (631) 283-7070 |
| Hampton Plumbing & Heating 30 Miller Rd, Southampton 11968 | (631) 283-3138 |
| Hardy Plumbing & Heating 1654 County Road 39, Southampton 11968 | (631) 283-9333 |
| Pond Plumbing Inc Southampton 11968 | (631) 204-0260 |
| R Essay Plumbing & Heating 11 Pleasant Ln, Southampton 11968 | (631) 287-7900 |
| Kevin Harrington Plumbing 625 County Road 39a, Southampton 11968 | (631) 283-8103 |
| Southampton Plumbing & Heating 70 Breese Ln, Southampton 11968 | (631) 287-2444 |