Marin County

Plumber in San Anselmo, CA

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CNTRline Plumbing serves San Anselmo, from the shops around The Hub and San Anselmo Avenue to the older homes up in Seminary and Sleepy Hollow. We come over from Rohnert Park to cover the Ross Valley. This is a town of vintage bungalows, and we treat them with care.

Local Plumber

Plumbing in San Anselmo

San Anselmo Creek runs right through the middle of town, and downtown has flooded hard more than once, so backups and sewer overflow prevention matter here. A lot of the housing is early-1900s Craftsman and cottage stock with original galvanized pipe and old clay sewer laterals. The town is part of the Ross Valley Sanitary District, which requires a lateral inspection when a home is sold.

For homes in the flat blocks near San Anselmo Creek, we install backwater valves and sump pumps to keep storm backups out of the house.

Neighborhoods we cover: The Hub, San Anselmo Avenue, Red Hill, Sleepy Hollow, Seminary.

ZIP codes: 94960.

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Our Services

What we do in San Anselmo

Water Heater Repair & Installation

Tank and tankless. Same-day replacement for failed units.

Drain Cleaning

Clogged sinks, tubs, and main lines cleared fast.

Gas Line Repair & Installation

Leaks, new lines, additions, and gas main replacement.

Sewer Line Repair

Video inspection, line repair, and full replacement.

Faucet & Fixture Repair

Faucets, sinks, toilets, and shower valves installed and repaired.

Emergency Plumbing

Burst pipes and no-water calls, 7 days a week.

We also handle general service & repair, remodels, and whole-home repipes. Call (707) 308-5599 to ask.

Local service pages for San Anselmo:

Questions

Common questions from San Anselmo homeowners

Ninety days from the close of escrow. San Anselmo is in the Ross Valley Sanitary District, and a failed lateral has to be repaired inside that window to get the Certificate of Compliance. Who pays is a negotiation between buyer and seller, so get a real repair quote in hand before that part gets settled.
Drain clearing runs $125 to $600 and cabling a main line runs $250 to $600. A tank water heater replacement is $1,800 to $3,600 installed, and hydro jetting a root packed or grease packed line is $400 to $1,400. Quotes are free in San Anselmo and you get the number before the work starts, not on the invoice after.
Yes, we are licensed and insured, and that coverage applies on every San Anselmo job. We put down drop cloths, shut the water off at the right valve, and clean up before we leave. Ask for the certificate any time, or call (707) 308-5599 and we will send it over.

Why CNTRline

Why San Anselmo homeowners call us

Licensed, bonded & insured

California CSLB #1036920, serving the area since 2017.

Same-day & emergency

We answer 7 days a week and can often be out the same day.

Local to Sonoma & Marin

Based in Rohnert Park. We know the homes and the water here.

Straight answers, free quotes

We tell you what’s wrong and what it costs before we start.

Reviews

5.0

Rated 5.0 on Google and 4.9 on Yelp

Real reviews from Sonoma and Marin homeowners, on the profiles where they were left.

5.0 on Google
18 reviews from Sonoma and Marin homeowners.
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4.9 on Yelp
67 reviews and 45 job photos on our Yelp profile.
Read our Yelp reviews
Licensed, bonded & insured
CSLB #1036920. Family run in Rohnert Park since 2017, serving Sonoma and Marin County 7 days a week.
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Nearby

Other Marin County areas we serve

Free Homeowner's Guide

The Sonoma & Marin Homeowner’s Plumbing Guide

Spot problems before they flood, find your shutoffs, and see real 2026 cost ranges. A free PDF, straight from a licensed local plumber.

  • 5 signs to call before it floods
  • Where your three shutoffs are
  • Real 2026 cost ranges for the big jobs
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