Serving you since 1950

Trusted to fix all your septic needs. 

925-634-4855

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OUR SERVICES

Septic Installation

We install new septic systems start to finish. 

We will walk you through the entire process.  

Septic Pumping

Did you know septic tanks should be pumped every 2-5 years? 

Operation and Maintenance 

Operation and Maintenance provided annually or bi-annually.

Plumbing 

General plumbing

services: line cleaning, pipe repair, sewer lateral install, water heater.  

Septic Inspection/Discovery

Septic Inspection for

Real Estate transaction, as well as system discovery for homeowners. 

 
 

WHO WE ARE

Family owned company serving

Brentwood and the surrounding area since 1950.

We love helping customers

by providing solutions to all their sanitation needs.

From pumping a septic tank

to installing a brand new septic system and everything in between.

We are here to serve you. 

HAPPY CUSTOMERS

We've lived in our home on septic for 9yrs, the previous owners told us they could never find the septic tank after numerous attempts.  We had tried to have the tank pumped out but no one at the county could tell us where it was.  After talking with the staff at Williams they laid out a plan and sent out a great team to help locate our septic tank.  In 7 minutes they were able to find a tank that had been hidden for 12+ yrs!  
They quickly dug up both boxes, tested the lines, pumped it out, inspected the boxes and covered the holes like they had never even been there.  Something that was haunting us for for years was fixed in a matter of hours!  EVERYONE from the office staff to the guys in the field were so friendly and so professional!!  I cannot say enough good things about the whole team!  

Thank you Williams Sanitation

Kristen , Knightsen, CA

Needed a new septic system in place. They are very knowledgeable in what they do. From The front desk, that was always VERY helpful to the guys that came out to do the work. All around great guys, professional and got the job done and then some. I would not hesitate to recommend them for a job. Thanks guys for helping get the process started through to completion. Excellent job!

Andrea, Brentwood, CA

CONTACT US 24/7

CALL US
EMAIL US

925-634-4855

AREAS COVERED
Answering Service Available 24/7

Contra Costa County 

Brentwood

Oakley

Knightsen

Antioch

Byron

Concord

Alameda County