Ongaro & Sons
Backflow testing. 719 Southpoint Blvd, Petaluma, CA 94954
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Price reports
What a backflow test costs in Petaluma
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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 Ongaro & Sons' website says
Services listed on Ongaro & Sons' website, read October 11, 2026: general plumbing, water heaters and drain and sewer service. ongaroandsons.com/commercial, ongaroandsons.com
| It says | Details | Page |
|---|---|---|
| Service area | Marin, Napa and Sonoma counties; Novato, Sebastopol, Bolinas, Corte Madera, Dillon Beach, Fairfax, Inverness, Kentfield, Marin City, American Canyon, Angwin, Calistoga, Deer Park, St. Helena and Yountville and 9 more | ongaroandsons.com |
| Founding year | Founded in 1932 | ongaroandsons.com/about-us |
| Licences, certifications, memberships | BBB accreditation | ongaroandsons.com |
Read on ongaroandsons.com on October 11, 2026 (5 pages). This is what the business says about itself; we have not checked the credentials it names with the issuing body.
Where you will find Ongaro & Sons
These are the city pages close enough for this business to appear on.
- Petaluma, CA(under 1 mi)
- Santa Rosa, CA(16 mi)
- Napa, CA(20 mi)
- San Rafael, CA(21 mi)
- Hercules, CA(28 mi)
- Martinez, CA(35 mi)
- San Francisco, CA(37 mi)
- Concord, CA(38 mi)
Other backflow testers nearby
| Business | Services | Distance |
|---|---|---|
| Scott Cramer Plumbing | Backflow Testing | under 1 mi |
| Dolcini Plumbing, Inc | Backflow Testing | 1 mi |
| GAC Plumbing Company | Backflow Testing | 1 mi |
| Arolo Company Inc | Backflow Testing | 2 mi |
| Service Plumbing | Backflow Testing | 2 mi |
| Cagwin & Dorward | Backflow Testing | 3 mi |
Questions about Ongaro & Sons
Is Ongaro & Sons approved to test backflow assemblies?
Ongaro & Sons is on the City of Petaluma list, as of March 13, 2025. 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 Ongaro & Sons do?
Their listing covers backflow testing. Call to confirm the service you need, because offerings change.
What areas does Ongaro & Sons serve?
They are based in Petaluma, California, within driving distance of Petaluma, Santa Rosa, Napa, San Rafael, Hercules. Its website names Marin, Napa and Sonoma counties and Novato, Sebastopol, Bolinas, Corte Madera, Dillon Beach and Fairfax and 18 more places as areas it serves (read October 11, 2026).
How do I reach Ongaro & Sons?
Call (707) 579-3511. 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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