Sewer Services in Marin County
Family-Owned Sewer Work in Marin County Since 1961
Marin H2O has handled plumbing and sewer work across Marin County since 1961. As a family-owned, fully licensed, and insured business based in San Rafael, we provide sewer services for both residential and commercial properties throughout the county. What separates us from plumbing-only contractors is our in-house excavation capability and our network of partner companies spanning construction, HVAC, and water treatment. When a sewer project grows beyond a standard repair, we don’t have to call someone else.
We handle the full range of sewer work: video inspection, main line cleaning, hydro jetting, rooter services, trenchless sewer repair and replacement, sewer location, and drain cleaning. Free estimates are available for every job.
Ready to schedule sewer service in Marin County? Call (415) 877-9745 to request a free estimate or book a same-day appointment whenever possible.
Why Marin County Homeowners & Businesses Choose Marin H2O
Our network includes Westward Builders for general contracting, Gene Burch Plumbing Heating and Air for HVAC, and Culligan of Marin for water treatment. When a sewer project intersects with another trade, we coordinate that work without sending you to find a separate contractor. And because we do our own excavation, sewer line access and underground utility work stays in-house from start to finish.
Every job we complete comes with a one-year labor warranty. We offer same-day and emergency sewer appointments whenever possible, and financing is available on select services. Our 4.9-star rating across 94+ Google reviews reflects how we work, not just what we do.
One Marin County customer who faced a sewer lateral leak on a shared driveway put it this way: “After interviewing multiple vendors, it was abundantly clear that Marin H2O is the way to go. Very knowledgeable and educates their customers.”
Schedule Your Free Sewer Estimate Today
Whether you’re dealing with a backed-up main line or planning a full sewer lateral replacement, we’re ready to take a look. Honest assessments, transparent pricing, and work backed by a one-year labor warranty. Call (415) 877-9745 or use our online form to reach Marin H2O and get your free estimate scheduled.
The Marin H2O Difference
We're Rated 4.9 Stars With 94+ Google Reviews!
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Local, Trusted & Licensed
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Offering 100% Free Quotes
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Top-Notch Customer Service
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Backed By a Warranty
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“My contractor and I have worked with Marin H2O for several years, and the service has only gotten better over time. From scheduling to plumbing coordination to maintenance, the entire team is professional, efficient, and a pleasure to work with.”Marion Hill
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“Today I used Marin H2O for the first time on the recommendation of my neighbor. The plumber they sent, Franklin, was on time, professional, respectful, courteous, and did an excellent job flushing my tankless hot water heater.”Dominic D.
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“We used Marin H2O for two toilets and their installation. Franklin was sent, and we found him to be a very experienced plumber. He's reliable, engaging, quick, complete, and willing to explain details of what he was doing.”Nadine S.
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“Marin H2O is highly responsive. Our job was scheduled immediately. The staff showed up promptly, completed the installation quickly and neatly. We just got the bill, and it was a fraction of the price from another plumbing company.”Becket C.
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“Reliable, honest, and efficient! A sewer lateral leak on a shared driveway is no fun - and after interviewing multiple vendors, it was abundantly clear that Marin H2O is the way to go. Very knowledgeable and educates their customers.”Iris K.
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“It's a real pleasure to work with a group of people who are highly professional, know what they are doing, and are trustworthy and dependable. I couldn't have asked for a better outcome and experience.”Benhur M.
- Marin County
- San Rafael
- Sonoma County
Sewer Services Across Marin County
Marin H2O serves Marin County for all sewer services, including San Rafael, Novato, and the surrounding communities. We’ve worked in this market since 1961, and that history means we understand the local infrastructure: aging sewer laterals, hillside lots with grade challenges, older housing stock, and the accelerated corrosion that coastal proximity can bring to aging pipe materials.
We serve both residential and commercial properties throughout the county. When a sewer project intersects with construction or HVAC work, our network of partner companies allows that coordination to happen in-house rather than requiring you to manage multiple contractors.
Contact Marin H2O at (415) 877-9745 or through our online form to request a free sewer estimate or schedule service anywhere in Marin County. Same-day and emergency appointments are available whenever possible.