Whether you need routine testing, a repair, or help with a failed backflow assembly, we’re here to keep your system working reliably and your water supply protected.


Our services

Protecting your water supply starts with a properly functioning backflow prevention system. We provide professional backflow services for residential and commercial properties, from routine testing and certification to repairs, rebuilds, and complete device replacement.

Backflow Testing & Certification

Accurate testing and certification of backflow prevention assemblies to help ensure your device is functioning as intended and meets applicable requirements.

Repairs & Rebuilds

We diagnose failed or malfunctioning assemblies and provide reliable repairs and rebuilds to restore proper operation and performance.

Device Replacement

When a backflow device is worn, damaged, or no longer serviceable, we can help identify the appropriate replacement and get your system back in service.

Installation

Professional installation of backflow prevention assemblies with attention to proper setup, accessibility, and reliable long-term operation.

System Inspections

Thorough inspections to identify potential problems, evaluate the condition of your equipment, and help prevent unexpected issues.

Troubleshooting & Diagnostics

When a backflow assembly fails a test or isn’t operating as it should, we identify the problem and help determine the right solution.

Accurate testing. Quality workmanship. Straightforward service.


contact us

Need Backflow Testing or Service?
Whether you need routine testing, repairs, replacement, or installation, we’re here to help. Contact us today to schedule service or get more information about your backflow system.

call today

Phone: (707) 907-0335

Email us Today

Email: PFMBackflow@outlook.com


Why us ?

About us


When it comes to protecting your water supply, experience, precision, and accountability matter. As a small, locally owned business, we provide personalized service with a commitment to quality that goes beyond simply completing the job. Our lead technician, Mason Hoffman, is a licensed professional and mechanical engineer with a genuine passion for water quality, system integrity, and the long-term protection of our water supply. His technical expertise allows us to approach each job with careful attention to detail, accurate diagnostics, and practical solutions. We stand behind our work, treat every customer with respect, and remain committed to providing reliable service you can trust.

Locations

Proudly serving customers throughout the Greater Bay Area, we provide professional backflow testing, repair, installation, and certification services for residential and commercial properties.

  • Santa Clara County
  • Alameda County
  • Contra Costa County
  • San Mateo County
  • San Francisco County
  • Marin County
  • Solano County
  • Sonoma County
  • Napa County
  • Mendocino County
  • Lake County
  • Sacramento County
  • Yolo County
  • Merced County

Contact us to confirm service availability in your specific area.


© 2026 PFM Backflow Services All Rights Reserved.

Licensed & Professional Backflow Services | Serving the Greater Bay Area