| Business | Phone |
| Evans Mechanical Mckinleyville 95519 | (707) 839-1041 |
| United Plumbing & Mechanical 1140 Jasmine Ln, Mckinleyville 95519 | (707) 839-5727 |
| Graham Hutt Mad River Plumbing Po Box 2027, Mckinleyville 95519 | (707) 822-8641 |
| Graham Hutt Plumbing 3270 Halfway Ave, Mckinleyville 95519 | (707) 839-8642 |