| Business | Phone |
| P V & C Plumbing & Piping 406 S Lemon Ave, Walnut 91789 | (626) 333-9727 |
| A-Aaa Drain Patrol Walnut 91789 | (909) 598-5322 |
| American Leak Detection Walnut 91789 | (909) 594-2418 |
| Better Business Corp Plumbing Walnut 91789 | (909) 598-1926 |
| Currier Plumbing Walnut 91789 | (909) 598-1263 |
| Diamond Bar Rooter & Plumbing Walnut 91789 | (909) 598-1738 |
| George Brazil Plumbing Heating Walnut 91789 | (909) 594-8289 |
| J B Plumbing Walnut 91789 | (909) 598-8444 |
| Michael E Hubler Plumbing Walnut 91789 | (909) 598-7313 |
| P V & C Plumbing & Piping 406 S Lemon Ave, Walnut 91789 | (909) 595-9434 |
| Prasad Plumbing Walnut 91789 | (909) 595-4431 |
| Raider Rooter & Svc Walnut 91789 | (909) 595-1927 |
| Rapid Plumbing Inc Walnut 91789 | (909) 598-9980 |
| Tom Witek Plumbing 3960 Valley Blvd, Walnut 91789 | (909) 598-5179 |
| United Plumbing & Drain Clean Walnut 91789 | (909) 598-5645 |
| Mr. Drain Plumbing 20747 Amar Rd STE# 8F, Walnut 91789 | (909) 259-0194 |