Plumbing Services in Marin County

Marin County’s sewer restoration specialists — now your full-service plumbing team, too. From trenchless sewer replacement to everyday repairs, one licensed, family-owned crew does it all.

When you need dependable plumbing services in Marin County, you deserve a contractor with the experience and licensing to do the job right. All Bay Sewer now offers comprehensive residential and commercial plumbing throughout Marin — from San Rafael and Novato to Mill Valley, Sausalito, Larkspur, and beyond.

As a dual-licensed contractor holding both a C-36 Plumbing License and a C-34 Pipeline License, we handle everything from everyday plumbing repairs to complex sewer and pipeline work, all with one trusted, local team.

Whether you’re dealing with a leaking pipe, a clogged drain, a broken water line, or need a new water heater installed, our Marin County plumbers are ready to help.

Call or text us today at (415) 702-8626 or request a free estimate through our contact form.

Complete Plumbing Services for Marin County Homes & Businesses

We provide residential and commercial plumbing solutions across Marin County designed to keep your plumbing system running safely and efficiently.

Drain Cleaning in Marin County

Clear stubborn clogs and restore proper drainage with professional drain cleaning. We use advanced equipment to remove buildup, tree roots, grease, and debris without unnecessary damage to your pipes, a common need in Marin’s older homes and mature, tree-lined neighborhoods.

Water Line Repair & Replacement

A damaged water line can cause low water pressure, higher utility bills, and costly property damage. We diagnose the problem quickly and provide reliable water line repair or replacement for Marin County homeowners and businesses.

Sewer Line Repair & Replacement

Our team specializes in sewer line repair, replacement, and trenchless solutions wherever possible, minimizing disruption to your Marin property while restoring your sewer system. Sewer work is our foundation, and we bring that same expertise to every job.

Leak Detection

Hidden leaks waste water and can cause serious structural damage over time. We use modern, non-invasive leak detection techniques to locate leaks accurately and recommend the most effective repair.

Fixture Installation & Repair

Whether you’re upgrading a kitchen or bathroom or repairing a malfunctioning fixture, we install and repair faucets, sinks, toilets, garbage disposals, shower fixtures, and bathtubs.

Water Heater Services

Keep your hot water flowing with professional water heater services. We handle installation, replacement, and repair for both traditional tank and tankless water heaters.

Repiping Services

Older plumbing systems — common throughout Marin County — can develop recurring leaks, poor water pressure, and corrosion. Our repiping services replace aging pipes with modern, durable materials for improved reliability and long-term performance.

Emergency Plumbing

Plumbing emergencies don’t wait for business hours. If you’re dealing with a burst pipe, major leak, sewer backup, or other urgent issue anywhere in Marin County, our team is ready to respond quickly.

Why Choose All Bay Sewer?

Dual-Licensed Expertise

Unlike many contractors who specialize in only one area, All Bay Sewer is licensed for both plumbing (C-36) and pipeline work (C-34). That means one experienced team can handle your entire project from start to finish.

Sewer & Trenchless Specialists

For years, we’ve earned the trust of Marin County homeowners and businesses through expert sewer inspections, repairs, and trenchless technology. Our plumbing services build on that same commitment to quality workmanship.

Local & Family-Owned

We’re proud to serve Marin communities with honest recommendations, transparent pricing, and dependable service. As a family-operated business, customer satisfaction remains our highest priority.

Quality Workmanship

Our experienced technicians use professional equipment, proven techniques, and high-quality materials to deliver lasting plumbing solutions.

Proudly Serving All of Marin County

We provide plumbing services throughout Marin County, helping homeowners, businesses, and property managers with everything from routine repairs to complete plumbing system upgrades, including:

Not sure whether we service your area? Give us a call — we’re happy to help.

Marin County Plumbing FAQs

What plumbing services does All Bay Sewer offer in Marin County?

We handle drain cleaning, water line repair and replacement, sewer line repair and replacement, trenchless sewer solutions, leak detection, fixture installation and repair, water heater services, whole-home repiping, and emergency plumbing across Marin County.

Yes. Whenever site conditions allow, we use trenchless methods to repair or replace sewer lines with minimal digging. Trenchless work protects your landscaping, driveway, and hardscape while restoring your sewer line — often faster and with less disruption than traditional excavation.

Cost depends on the length and depth of the line, the type of damage, access to the pipe, and whether a repair or full replacement is needed. Because every property is different, we provide a free, upfront estimate after diagnosing the issue — so you know the price before any work begins.

In most cases, the property owner is responsible for the sewer lateral that runs from the home to the city’s main line, while the municipality maintains the main itself. We can inspect your line, identify exactly where the problem is, and explain your options.

Yes. Burst pipes, major leaks, and sewer backups can’t wait. Call or text us at (415) 702-8626 and our team will respond quickly.

Need a Marin County Plumber? We're Ready to Help.

Whether it’s a simple repair, a plumbing emergency, or a complete replacement project, All Bay Sewer has the experience and licensing to get the job done right.

Or fill out our contact form to request a free estimate, and a member of our team will get back to you as soon as possible.