P.O. Box 20
Brentwood, CA 94513


Family Owned and Operated Since 1950

Rely on Williams Sanitary Service Inc. for all your septic needs. From portable toilet rentals to septic repair, our services are comprehensive and second to none.
ToiletToo many of us take an “out of sight, out of mind” approach to our septic tanks, which can lead to costly repairs or even the total breakdown of systems that could have been salvaged with a little preventive maintenance.
At Williams Sanitary Service Inc., we have the experience, skill and resources to guarantee that our septic services will solve your problems with ease and precision.
Don’t settle for average service from a company that just wants to drain your wallet. Entrust your installations, diagnostics, repairs and maintenance to us. Instead of maintenance plans loaded with costly, unnecessary repairs, we have customer-friendly service schedules tailored to your specific needs.
When it comes to portable restrooms, we are known for keeping the cleanest facilities in the East Bay. Do you need to provide facilities for a busy construction site? Long-term rentals are perfect for such circumstances.
Conversely, short-term rentals are ideal for weddings, parties or outdoor festivals, and we service all special events! With flexible rental options, we can accommodate all your needs, and we always offer fast pickup and delivery.

If you want to learn more, contact us today. We’re ready to answer your questions.

We are proud members of the Brentwood Chamber of Commerce and the Oakley Chamber of Commerce.
License Number: 907482 
Antioch, Pittsburg, Byron, Brentwood and Oakley

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