| Business | Phone |
| Aaa Kinetico Water Systems Fairfield 94533 | (707) 422-6044 |
| Ecowater Systems Fairfield 94533 | (707) 428-0900 |
| Hague Quality Water 2499 Martin Rd # A, Fairfield 94534 | (707) 553-6011 |
| Inserv Co 149 Grobric Ct, Fairfield 94534 | (707) 864-3049 |
| Med-Tech Water Systems 1891 Woolner Ave # J, Fairfield 94533 | (707) 427-1564 |