There's no problem too big
or too small that we can't solve.



Napa Valley's most trusted septic system company.

For over 40 years, P+R Septic Systems has successfully served Napa's commercial and residential properties in designing, installing and repairing  septic systems. We'll plan your new system or trouble shoot an existing one. 


Prompt and Reliable Service

We're here to help. Our experience with unique Napa terrains and soil types let us find a the best solution right away. That's why we can confidently say, there's no job too big or too small that we can't solve. We walk you through the process and communicate clearly to ensure that your project is complete on time and on budget.

Call Mark today to discuss your project and get expert advice. 

Find out more



We welcome your business.



Mark will come to your location and assess your project free of charge. Then it's up to you! We can move ahead to fix your existing problem right away, or draw up septic system plans for a new building site. All work is completed in a timely manner with the least amount of disruption - and we do this at a very competitive cost. And we always stand behind our work.

Every project we take on is 100% guaranteed for workmanship. 

Serving Napa Valley and surrounding local areas

  • Design
  • Installation
  • Repair and replacement systems
  • Green & environmentally friendly solutions 
  • Soil Evaluations and Perk Testing
  • Site maintenance / trouble shooting
  • Baffle and riser installations
  • Assist with local permits and approvals
  • 100% guarantee on workmanship
  • Digging services 

We appreciate our clients.

Why do Napa locals choose P+R Septic? Here's what some of your neighbors have to say.  We're a second generation Napa family-owned business and still believe the best recommendation is word of mouth. So many thanks... we appreciate you!

"P & R Septic tops the list for integrity and reliability."

-Jeff Virnig, Wine maker Robert Sinskey Vineyards 

"They have provided exceptional service every step of the way from design work, to installation, to follow-up maintenance on more than a dozen septic system projects." 

-Mike McLoughlin Whitehall Lane Winery

Can you say, "Johnny on the spot?... Mark took us through our whole project and then some."  

-Ellen and Jeff Politz, Napa Valley Resident

"P&R Septic was and still is one of the BEST contractors I have ever used. I have recommended Mark Phillips to many of my friends and clients. Mark shows up when promised and does an excellent job!" 

-Michael R. Milat, Milat Winery

"P&R Septic is a company that OFFERS an excellent service at a fair price. We trust the work that they do and would recommend P & R unconditionally."

-Claudia Johnson Napa Valley Resident 

"A few years ago we were constantly having trouble with our holding tank. We asked P&R Septic Systems to help us. They did. Since then we have had little problems. We are grateful!"

-Ed and Marie Henderson , Former Mayor of Napa


Septic tank maintenence is important, too. We recommend DEPENDABLE SEPTIC SYSTEMS.

Renee is licensed, insured and adheres to the highest industry standards.

Call directly during regular BUSINESS HOURS. 

Phone:  707-257-2127  or  707-963-4161

Emergency Service Available.

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