Backflow Prevention Testing
In Marin & Sonoma County

Let Us Handle It — Automatically.

Did you know that backflow prevention testing is required every year to stay compliant? Forget the reminders, scheduling headaches, and last-minute calls.

When you join our Maintenance Comfort Club, we handle it all for you.

✓ We track your testing schedule

✓ We reach out when it’s due

✓ We perform the service without you lifting a finger

No stress. No to-do list. Just reliable protection, year after year.

Backflow occurs when contaminated water flows back into your home or business’s clean water supply—putting your health at risk. To keep your water safe and comply with local regulations, backflow prevention devices need to be tested regularly by a certified professional. We provide backflow prevention testing in Marin & Sonoma Counties, to ensure your system is working properly and your drinking water remains clean.

Protecting marin & sonoma county Water Supply

From homes in Gerstle Park and Sun Valley to businesses in Marin & Sonoma County, we’ve helped keep local water safe through professional backflow testing and repairs. We’re familiar with city requirements and testing schedules, and we’ll make sure your property meets code without the hassle.

Why Choose Us for Backflow Testing

  • Certified testers – We’re licensed to perform official backflow prevention device testing.
  • Fast service – Appointments that fit your schedule, with quick turnaround on results.
  • Complete compliance – We handle the testing paperwork required by the city or county.
  • Repairs available – If your device fails the test, we can fix it right away.
  • Local knowledge – We understand water systems and code requirements.

What is Backflow and Why Does Testing Matter?

Backflow happens when water pressure changes cause dirty water from sprinklers, irrigation systems, or industrial plumbing to reverse direction and enter the clean water supply.

Annual backflow testing is important because:

  • It keeps drinking water safe from contamination.

  • It ensures your device is functioning properly.

  • It’s required by many municipalities in Marin & Sonoma Counties.

Common Questions About Backflow Testing

How often should I test my backflow prevention device?

Most systems require annual testing, but some high-risk properties may need more frequent checks.

We’ll explain the issue and can make repairs or replacements to bring it back into compliance.

Yes, we handle all required paperwork so you don’t have to.

Yes, we’re certified to test all common models used in residential and commercial plumbing systems.

our plumbing services

We service your area

Belvedere
Bolinas
Corte Madera
Cotati
Fairfax
Glen Ellen
Greenbrae
Inverness
Kentfield
Kenwood
Larkspur
Marin County
Mill Valley
Montgomery Village
Nicasio
Novato
Oakmont
Penngrove
Petaluma
Point Reyes Station
Rohnert Park
Ross
San Rafael
San Anselmo
San Francisco
Santa Rosa
Sausalito
Sebastopol
Sonoma
Stinson Beach
Tiburon
Woodacre

Schedule Your Backflow Prevention Testing in marin and sonoma county

Protect your drinking water and stay in compliance with local regulations by scheduling backflow prevention testing today. Our certified testers provide fast, reliable service anywhere in Marin & Sonoma County.

P: (415) 479-0110
E: Office@MikeTestaPlumbing.com