| Business | Phone |
| Winslow Plumbing & Mechanical Guilford 6437 | (203) 458-6797 |
| Tupper Plumbing 160 Hart Rd, Guilford 6437 | (203) 457-1763 |
| Charles W Griffiths Jr Plbg Guilford 6437 | (203) 453-8650 |
| Diversified Plumbing 275 Tanner Marsh Rd, Guilford 6437 | (203) 458-1521 |
| P L Canestri Plumbing & Htg 727 Boston Post Rd, Guilford 6437 | (203) 453-1306 |
| Munro Plumbing & Heating 725 Boston Post Rd, Guilford 6437 | (203) 453-6103 |
| J C Kleinkauf Inc 1635 Long Hill Rd, Guilford 6437 | (203) 453-9536 |