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415-456-4554
The Mason Plumbing fleet in front of Marin hills

Locally owned and operated

Plumbing service in Marin County since 2003.

Mason Plumbing, Inc. is a true mom-and-pop company. We are fully licensed, bonded, and insured, and we guarantee our work.

Mon-Fri 8am-5pm

FAMILY OWNED * MARIN COUNTY * FAMILY OWNED * MARIN COUNTY * SINCE 2003
  • Diamond CertifiedA plumbing company you can trust
  • BBB AccreditedBetter Business Bureau
  • Licensed, bonded & insuredContractor license #817803
  • Two-year warrantyOn labor for plumbing installations

What we fix

Whether your plumbing problems are big or small, Mason Plumbing, Inc. can help. Here is the work we do most.

No.01

Plumbing repairs

We repair leaks, faucets, toilets, garbage disposals, and other everyday plumbing problems for homeowners and business owners in Marin County, and we explain what is wrong before we start.

Leak detection / Fixtures & faucets / Toilets & disposals

No.02

Sewer & drain cleaning

Camera inspections and hydro jetting let us accurately diagnose your drains. Maintenance drain cleaning once or twice a year can be better than waiting to do a $12,000 sewer repair or replacement.

Camera inspections / Hydro jetting / Drain cleaning

No.03

Water heaters

If your water heater can be repaired safely, then we will do it for you. And if not, we will help you pick out a replacement model. That is our promise.

Tank & tankless / Maintenance / Replacement

No.04

Kitchen & bath remodels

We handle the plumbing for kitchen and bathroom remodels, from a single new fixture to a complete room, on time and on budget.

Kitchen plumbing / Bathroom plumbing / Fixture installation

No.05

Water conservation

High efficiency toilets, tankless water heaters, and recirculating pumps help you feel good about your water use without compromising comfort.

Efficient fixtures / Recirculating pumps / Leak repairs

Any?

Not on the list?

Call anyway. Tell us what is going on and we will tell you honestly whether we can help.

415-456-4554

Who we are

A true mom-and-pop company, started in 2003.

Cameron Mason and his wife Kamber started Mason Plumbing, Inc. in 2003. Our goal is to build long-term relationships with our customers by treating people kindly and fairly, while giving the best plumbing service and repairs.

We are based in San Anselmo. Our small size allows us to take a hands-on approach to each job.

Notes from customers

I keep going back to them because I trust their judgement.
Jane H., Mason Plumbing customer
They picked up the phone, came out quickly and kept the appointment time.
Jeffrey R., Mason Plumbing customer

Read more reviews

Where we work

Mason Plumbing, Inc. serves homes and businesses in the towns listed here and in areas of West Marin. If you are not sure whether we cover your address, give us a call.

  • San Anselmo
  • San Rafael
  • Fairfax
  • Ross
  • Kentfield
  • Greenbrae
  • Larkspur
  • Corte Madera
  • Mill Valley
  • Sausalito
  • Tiburon
  • Novato

Give us a call, or send a work order.

Tell us what is happening and where you are located. We strive to help you as soon as possible, often within hours of your call.

415-456-4554

Mon-Fri 8am-5pm / PO Box 2874, San Anselmo, CA 94979

Work orderMason Plumbing, Inc.
Call Mason Plumbing 415-456-4554