Ros Plumbing
Backflow testing. 102 Bradford St, San Francisco, CA 94110
Approvals
| Certified tester | Certificate |
|---|---|
| Niall Dolan |
Price reports
What a backflow test costs in San Francisco
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Published prices nationwide
$29.99 to $100 per assembly
Every published price, with its source: what a backflow test costs.
Failed test? Published repair, rebuild and replacement prices: what a backflow repair or replacement costs.
What Ros Plumbing's website says
Services listed on Ros Plumbing's website, read October 11, 2026: backflow testing. rosplumbing.com
| It says | Details | Page |
|---|---|---|
| Service area | Marin, San Francisco and San Mateo counties; San Anselmo, Hillsborough, Burlingame, Sausalito, Novato, San Rafael, Corte Madera, Mill Valley, Belvedere and Tiburon | rosplumbing.com |
Read on rosplumbing.com on October 11, 2026 (5 pages). This is what the business says about itself.
Where you will find Ros Plumbing
These are the city pages close enough for this business to appear on.
- San Francisco, CA(1 mi)
- South San Francisco, CA(6 mi)
- Oakland, CA(10 mi)
- Burlingame, CA(10 mi)
- San Mateo, CA(13 mi)
- San Leandro, CA(13 mi)
- San Rafael, CA(17 mi)
- Hayward, CA(19 mi)
Other backflow testers nearby
| Business | Services | Distance |
|---|---|---|
| Cornely Company | Backflow Testing | under 1 mi |
| Larratt Bros Plumbing, Inc. | Backflow Testing | under 1 mi |
| Pacific Automatic Sprinkler Co. | Backflow Testing | 1 mi |
| Arch Plumbing Inc | Backflow Testing | 1 mi |
| Malcolm Plumbing & Mechanical | Backflow Testing | 1 mi |
| Bay Area Mechanical and Engineering, Inc. | Backflow Testing | 1 mi |
Questions about Ros Plumbing
Is Ros Plumbing approved to test backflow assemblies?
Ros Plumbing is on the San Francisco authorized testers, as of August 14, 2026. That means the utility lets the company file backflow test reports in its system; it is not a state license. Ask for the tester's certificate number before the test.
What does Ros Plumbing do?
Their listing covers backflow testing. Call to confirm the service you need, because offerings change.
What areas does Ros Plumbing serve?
They are based in San Francisco, California, within driving distance of San Francisco, South San Francisco, Oakland, Burlingame, San Mateo. Its website names Marin, San Francisco and San Mateo counties and San Anselmo, Hillsborough, Burlingame, Sausalito, Novato and San Rafael and 4 more places as areas it serves (read October 11, 2026).
How do I reach Ros Plumbing?
Call (415) 505-2180. Their website is linked on this page.
Compiled from public records and public business information. Not an endorsement. Check licensing before you hire.
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