| Business | Phone |
| Carreker Plumbing 12300 Big Canyon Rd, Middletown 95461 | (707) 994-4030 |
| Mount St Helena Plumbing Po Box 63, Middletown 95461 | (707) 987-9804 |
| Redwood Plumbing Middletown 95461 | (707) 987-0383 |
| Whitney Plumbing & Pump 17655 Highway 175, Middletown 95461 | (707) 928-5029 |
| Remington Plumbing P.O. Box 892, Middletown 95461 | (707) 987-9468 |