| Business | Phone |
| Beasley Plumbing 1427 Yosemite Cir, Clayton 94517 | (925) 672-1480 |
| Contra Costa Plumbing Clayton 94517 | (925) 672-6533 |
| Ojeda Plumbing Clayton 94517 | (925) 672-0749 |
| Sheehan Plumbing Svc 3500 Curry Canyon Rd, Clayton 94517 | (925) 524-0924 |
| Mr. Rescue Plumbing & Drain Cleaning 5437 Clayton Rd # 101, Clayton 94517 | (925) 309-6371 |