The Mason family standing beside a Mason Plumbing van among trees

Plumbing help, close to home.

Family owned and operated since 2003. Service, repairs, and plumbing projects for homes and businesses throughout Marin County.

Call 415-456-4554 Request Service

Monday to Friday, 8am to 5pm. If something can’t wait, please call.

Diamond Certified4.7 average from 252 verified customer surveysRead the Diamond Certified profile

How we can help

Whether the problem is big or small, call Mason Plumbing first.

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Members of the Mason family together beside a Mason Plumbing van

The people behind the business

Started by Cameron and Kamber Mason in 2003, Mason Plumbing remains family owned and family run, with the next generation now working alongside them.

“We’ve kept our company smaller so we can continue to provide our customers with a high level of quality,” says Cameron Mason. “We’re able to connect with them on a personal level and make sure they have positive experiences.”

About Mason Plumbing

What you can expect

  • A clear explanation

    We look for the cause first and explain what we find. A video camera inspection lets you see the problem in a sewer or drain line for yourself.

  • Repair when it makes sense

    If a water heater can be repaired safely, we will repair it. If it can’t, we help you choose a replacement.

  • A small, hands-on team

    We have kept the company small so we can take a hands-on approach to each job and pay attention to quality throughout.

  • Clear warranty terms

    Factory warranties on company-supplied materials, and a 2-year labor warranty on plumbing installations.

What customers say

  • “I keep going back to them because I trust their judgement.”

    Jane H.

  • “They are always on time, very competitive in their pricing, and they provide excellent customer service on the phone.”

    Fred H.

  • “They were on time, helpful, and reasonably priced.”

    Sara D.

More from customers: Diamond Certified profile and Yelp.

Mason Plumbing vans parked below Mount Tamalpais

Serving Marin County

Our offices are in San Rafael, in central Marin. We work in these towns and in areas of West Marin.

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

Service area details

Questions, or something that needs fixing?

Call us, or send a request and we’ll get back to you during office hours.

Call 415-456-4554 Request Service
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