Plumbing project by Marin H2O in San Rafael, CA Plumbing project by Marin H2O in San Rafael, CA (photo 2) Plumbing project by Marin H2O in San Rafael, CA (photo 3) Plumbing project by Marin H2O in San Rafael, CA (photo 4) Plumbing project by Marin H2O in San Rafael, CA (photo 5)

Marin H2O Plumbing in San Rafael, CA

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Top-rated family-owned plumbing and water treatment company serving Marin and Sonoma Counties since 1961 with emergency services and comprehensive solutions.

About Marin H2O

Marin H2O is a family-owned plumbing and water treatment company serving Marin and Sonoma Counties since 1961. Specializing in comprehensive plumbing solutions—from emergency repairs and drain cleaning to water heater installation and sewer line services—as well as advanced water treatment systems including whole-house filtration and water softening. With over 60 years of local expertise, the company handles both residential and commercial properties, offering same-day emergency appointments, free water analysis, and partnering with trusted brands like Culligan. Licensed and fully insured technicians provide professional results backed by a one-year labor warranty, combining traditional craftsmanship with modern technology to address the unique infrastructure challenges of the local region.

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Marin H2O: frequently asked questions

What services does Marin H2O offer?

Marin H2O offers plumbing services in San Rafael, including plumbing, leaky faucet repair, toilet repair, drain cleaning, garbage disposal repair and faucet installation, plus 15 more listed on this profile.

Where does Marin H2O work?

Marin H2O is based in San Rafael, CA and also serves Novato, San Anselmo, Fairfax, Ross, San Quentin, Kentfield, Woodacre, Greenbrae and 52 other areas.

Is Marin H2O licensed?

Marin H2O hasn't added a license to their Contractors2Hire profile yet. California generally requires a CSLB license when work requires a building permit, involves employee labor, or totals $1,000 or more (limited exemptions apply), so ask for their license number and check it on the CSLB website.

How is Marin H2O rated?

Marin H2O doesn't have reviews on Contractors2Hire yet. Ask for references or photos of recent projects when you request a quote.

How do I get a quote from Marin H2O?

Use “Send a Message” on this page to describe the job and get a free, no-obligation quote. You can also compare other plumbers near San Rafael below.

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