EBMUD will only accept a test from a tester on this Approved Backflow Testers List. Testers must already hold AWWA, ABPA, NCBPA, or ASSE general certification and pass EBMUD’s own written and hands-on exam.
Official program page Official PDF (Approved Backflow Testers 8.2026)
Every company below is copied from EBMUD’s August 2026 certified testers list (PDF dated 8/3/2026). This page is a local snapshot, not the live roster.
Certification and kit expiration dates are as printed. This page does not say whether a cert is still in force.
The official file does not mark fire-line testers. Dedicated fire services are covered on the program page as an assembly/survey topic, not as a tester highlight.
87 companies
| Company | Phone |
|---|---|
| Beasley Plumbing | 510-385-6568 |
| Bustos Plumbing | 510-714-2027 |
| Paul Ibarra Plumbing | 925-354-6556 |
| Pennington Plumbing LLC | 925-382-9657 |
| Blue Wrench Plumbing | 925-222-5941 |
| Bay Area Backfflow Svc. | 925-625-9456 |
| L J Kruse Company | 510-644-0260 |
| GR8BACKFLOW | 510-417-0495 |
| Thorpe Design Inc | 925-848-6432 |
| Accurate Backflow Services | 510-316-9746 |
| Frank Bonetti Plbg., Inc | 510-582-0934 |
| Pacheco Landscape Mgmt. | 510-760-1808 |
| Proper Plumbing Services | 415-837-8727 |
| Guerra Bros Plumbing | 925-288-0409 |
| Lescure Company | 925-283-2528 |
| Matrix | 925-459-9200 |
| Matrix HG | 925-459-9200 |
| Matrix HG, Inc | 925-459-9200 |
| Philco Building Maint | 925-363-7755 |
| Preferred Plumbing & Drain | 925-676-2143 |
| Flo Right Backflow LLC | 925-719-4577 |
| See CONTACT NAME >> | 831-578-1549 |
| Olivero Plumbing Co., Inc. | 510-529-2762 |
| Bay Area Backflow Inc. | 510-742-2272 |
| Aliance Backflow Services | 408-510-3119 |
| Salcido"s Backflow Service | 408-561-3135 |
| A&B Backflow Prev Services | 925-828-8388 |
| Chris' Plumbing Inc. | 415-368-3559 |
| Got Backflow? | 510-468-3289 |
| Klingenbeck Plumbing | 510-481-1985 |
| Sancho's Backflow | 510-427-9820 |
| City Mechanical Inc. | 510-724-9088 |
| Backflow Testing & Repair | 925-639-1665 |
| R & H Backflow LLC (ISSCO) | 925-284-1511 |
| Serenity Backflow | 707-724-2191 |
| Epic Irrigation Services | 925-505-1234 |
| Gannon Backflow | 925-413-1997 |
| Monarch Landscape | 925-519-9026 |
| Stead Backflow | 209-351-0534 |
| Bay And Valley Backflow | 800-671-4129 |
| Landscape Care, Inc | 925-372-7973 |
| AWHS, Inc. | 510-490-4411 |
| Above All Plumbing | 510-475-6040 |
| A & J Construction | 510-882-8089 |
| ACE Backflow | 510-808-5760 |
| CBRE | 510-561-9322 |
| City Certified Backflow | 800-684-8346 |
| The Backflow Pro, Inc. | 800-511-2210 |
| Yes Construction Group Inc | 510-965-8690 |
| See CONTACT NAME >> | 415-283-5734 |
| See CONTACT NAME >> | 510-326-4030 |
| Backflow Team, LLC | 888-230-2747 |
| JV Backflows | 209-496-6687 |
| Marina Plumbing Co | 925-600-8955 |
| Valley Plbg & Home Center | 925-462-1639 |
| Juniors Backflow Testing | 510-672-2308 |
| BG Backflow Services | 707-696-7010 |
| $125 Backflow Testing | 415-712-4782 |
| ACME Bay Area Backflow | 925-484-8477 |
| Greater Bay Area Backflow | 209-484-2718 |
| The Backflow Guy Inc | 877-384-3489 |
| Century Commercial Serv | 916-224-1648 |
| Flow City Plumbing | 408-806-0696 |
| Therma | 408-347-3500 |
| United Mechanical | 408-892-1547 |
| 4th of July Backflow, LLC | 831-578-1549 |
| ACCO Engineered Sys | 800-598-2226 |
| Al's Backflow Service | 510-910-1541 |
| Alameda Backflow Testing | 510-541-2270 |
| Carrier Commercial Svcs | 510-347-2000 |
| Pro Rooter and Plumbing | 510-670-1115 |
| T G's Backflow Service | 925-783-9864 |
| Evergreen Landscapes | 510-326-7746 |
| Animo Water | 626-497-2134 |
| ABC Testing, Inc | 415-712-4863 |
| Agile Backflow Solutions | 510-432-6788 |
| American Backflow | 925-828-5972 |
| Cohran's Backflow Testing | 925-719-3065 |
| Community Fire Protection | 775-772-1755 |
| Pribuss Engineering | 650-588-0447 |
| AAA Backflow Prev Services | 209-931-5253 |
| Qualified Plumbers Service | 510-471-2373 |
| GD3 Plumbing Solutions | 415-525-9576 |
| Escos Fire & Safety | 925-217-0500 |
| Golden State Backflow | 925-813-9712 |
| McCartney's Backflow Test | 925-565-8224 |
| One Stop Backflow | 415-328-7063 |
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