| Business | Phone |
| Anmar Plumbing & Heating 30 Pinewood Dr, Thunder Bay P7C 5M9 | (807) 939-1836 |
| Aqua North Plumbing & Heating Po Box 10028 Stn P, Thunder Bay P7B 6T6 | (807) 767-3797 |
| Axelson's Plumbing & Heating 353 Grenville Ave, Thunder Bay P7A 2B5 | (807) 683-8811 |
| Giardetti Bros Plumbing Ltd 136 Court St S, Thunder Bay P7B 2X4 | (807) 345-6933 |
| Massaro Mechanical Plumbing 621 Gorevale Rd, Thunder Bay P7B 5N1 | (807) 767-8702 |
| Metro Plumbing & Heating Inc 648 Squier St, Thunder Bay P7B 4A8 | (807) 345-5801 |
| Robert's Plumbing & Sheet Mtl 286 Secord St, Thunder Bay P7B 3E7 | (807) 345-9353 |
| Takk Plumbing Ltd 495 Hilldale Pl, Thunder Bay P7B 5E5 | (807) 767-6377 |
| Thermal Mechanical Systems Inc 648 Squier St #5, Thunder Bay P7B 4A8 | (807) 345-5200 |
| Villeneuve Mechanical 1880 Paquette Rd, Thunder Bay P7B 5E5 | (807) 767-8887 |
| Central Plumbing & Heating 2231 Victoria Ave E, Thunder Bay P7C 1E6 | (807) 622-2690 |
| Craig Plumbing Ctr 1263 Amber Dr, Thunder Bay P7B 6M4 | (807) 345-1137 |
| Ddds Plumbing Repairs 432 Arundel St #B, Thunder Bay P7A 1L7 | (807) 683-6934 |
| Dlm Plumbing & Heating 2636 Begin Pl, Thunder Bay P7E 5L8 | (807) 626-9807 |