| Business | Phone |
| Ace-Pelizon Plumbing Co 120 E Badillo St, Covina 91723 | (626) 331-0701 |
| Best Plumbing Po Box 5007, Covina 91723 | (626) 332-3035 |
| Chris Graham's Leak Detection 804 N Dodsworth Ave, Covina 91724 | (626) 967-0454 |
| Malcolm's Plumbing 800 N Grand Ave, Covina 91724 | (626) 305-0682 |
| A 1 Rooter 16721 E Benbow St, Covina 91722 | (626) 332-4810 |
| Alvarado's Precision 1635 E Nubia St, Covina 91722 | (626) 633-1691 |
| George Brazil 24 Hour Svc Covina 91722 | (626) 443-2345 |
| R G Plumbing 1522 W Industrial Park St # A, Covina 91722 | (626) 336-8551 |
| Roy's Plumbing & Sprinklers 16226 E Kingside Dr, Covina 91722 | (626) 856-0483 |
| Mr. Drain Plumbing 15940 E San Bernardino Rd STE#9, Covina 91722 | (626) 380-0128 |