Plumbing emergency? — We’re fully staffed and ready to help. CALL NOW TO SCHEDULE  ·  Call (707) 387-1312
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THE PLUMBER THAT RESPONDS IN MINUTES, NOT DAYS.

From water heater repair to sewer line replacement, we offer a wide range of residential and commercial plumbing services across The North Bay

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30 Drain Cleaning + A Free Camera Inspection

Stop overpaying plumbers. West Coast Plumbing delivers the professional drain cleaning and a free full-line camera inspection at the best price in town— so you know exactly what’s going on inside your pipes before small problems become big ones.

CALL NOW & BOOK YOUR TECHNICIAN

IT'S EASY TO BOOK ONLINE!

Your home deserves plumbing you never have to worry about.

Work with a team of local professionals who put honesty and care at the forefront of every project they work on.

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Serving Sonoma & Marin County with Dependable Plumbing, Top to Bottom.

From your kitchen sink to your sewer line, we’ve built a reputation for clear communication and quality workmanship that lasts.

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24/7 Emergency Service

When plumbing can’t wait, neither do we. Call anytime— and we’ll be there ready to serve you.
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Technician Plumber Using A Wrench To Repair A Water Pipe Under The Sink. Concept Of Maintenance, Fix Water Plumbing Leaks, Replace The Kitchen Sink Drain, Cleaning Clogged Pipes Is Dirty Or Rusty.

Drain Services

We’ll get your showers, sinks, and drains flowing freely—without the mess or guesswork.
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Water Heater Services

From quick repairs to full replacements, we make sure your water heater delivers comfort.
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Pipe Repair & Repiping

Whether it’s a single fix or a full repipe, we restore reliability to your home’s plumbing system.
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Fixture Installation

Fixture Installation

We install faucets, toilets, and sinks that work perfectly from day one—and keep working for years.
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Sewer Line Services

We’ll keep your sewer lines clear and reliable—without the mess, stress, or second guesses.
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SEE ALL SERVICES CONNECT WITH OUR TEAM

CHOOSE THE PROS WHO CARE.

  • We show up when we say we will. Plumbing problems are stressful enough—you shouldn’t have to wonder if your plumber will arrive. We keep our word, every time.
  • Repairs and installs that last. No patch jobs, no quick fixes. We believe in doing it right the first time, so you don’t have to call us twice.
  • You’ll always know what’s happening. We explain the issue in plain language, outline your options, and give upfront pricing—no jargon, no surprises.
  • We’re your neighbors, not just your plumbers. Serving Sonoma and Marin means more than business—it means taking care of the same communities we call home.
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Verified by Google
4.9
★★★★★
120+ Reviews

Your Neighbors Already Trust Us.

We’re proud to be the plumber Sonoma, Marin, and Napa County families recommend to their friends and neighbors.

★★★★★

Every person I dealt with was super competent and very friendly.

Rita R.
7 months ago
★★★★★

Called at 8am about a backed-up drain. West Coast was at our house by 10am. David was fabulous from start to finish.

Avery T.
8 months ago
★★★★★

Quick, efficient, accommodating — and never tried to upsell me. Rare honesty for a plumbing service. Highly recommended.

David L.
8 months ago

Join 120+ Sonoma, Marin, and Napa County homeowners who already rate us 4.9 on Google.

Emergency Service (707) 387-1312
Got Questions

We’ve Got Straight Answers.

The questions Sonoma, Marin, and Napa County homeowners ask us most — answered plainly, without the runaround.

Still not sure?

Talk to a real plumber or book your visit online. No scripts. No hold music.

Emergency Service (707) 387-1312
How quickly can you get a plumber to my home?
We respond in minutes, not days. For most service calls in Sonoma and Marin County we can have a technician at your door the same day. For plumbing emergencies, we’re fully staffed around the clock — and we don’t charge after-hours fees for emergency calls.
Do you charge a dispatch or diagnostic fee?
We offer a $0 dispatch fee with drain services, and we give you a full upfront quote before any work begins. You’ll know exactly what it costs before we touch a thing — no surprise charges, no ambiguous line items.
What plumbing services do you offer?
We handle it all — water heater installation and replacement, drain cleaning, sewer line services, pipe repair and repiping, fixture installation, gas line services, water filtration, smart plumbing, and 24/7 emergency response. If it’s plumbing, we do it right.
Are you licensed and insured in California?
Yes. West Coast Plumbing holds California Contractors License #1115191. Every technician we send to your home is licensed, background-checked, and fully insured. You’re protected from the moment we show up.
Do you offer financing?
Yes — we offer flexible financing options including 0% interest plans for qualified customers. A major repair or replacement shouldn’t have to wait because of budget. View financing options here or ask us when you call.
How do I know if I have a plumbing emergency?
If you have a burst pipe, sewage backup, gas leak, complete loss of water pressure, or a water heater that’s actively flooding — that’s an emergency. Don’t wait. Call us immediately at (707) 387-1312. We’re available 24/7 with no after-hours surcharge.
Do I need a permit for plumbing work in California?
For most significant plumbing work — water heater replacements, repiping, sewer line work, gas line installs — yes, a permit is required under California code. We pull permits and handle all inspections as a standard part of the job. This protects you legally and matters when you sell your home.
What areas do you serve?
We serve Sonoma County (Santa Rosa, Petaluma, Sebastopol, Rohnert Park, Windsor, Healdsburg, Sonoma, Cotati), Marin County (Novato, San Rafael, Mill Valley, Corte Madera, Larkspur, Fairfax, San Anselmo, Tiburon), and Napa County (Napa, St. Helena, Calistoga, Yountville, Oakville, Rutherford). Don’t see your city? Give us a call — we likely cover your area.
How do I shut off my water in an emergency?
Your main shutoff valve is typically located where the water line enters your home — often near the water meter, in a crawl space, or in a utility room. Turn it clockwise to close. If you can’t find it or it won’t turn, call us immediately and we’ll walk you through it while a technician heads your way.
Do you work on older homes with galvanized or cast iron pipes?
Absolutely. Older homes throughout Sonoma and Marin County often have galvanized steel, cast iron, or polybutylene pipes. We specialize in repiping these systems with modern copper or PEX — improving water pressure, water quality, and reliability for decades to come.
North Bay Residents — Limited Offer

Get $100 Off
Your First Appointment.

Book any plumbing service and take $100 off your first visit. No coupon code needed — just mention it when you call or schedule online.

Emergency Service (707) 387-1312

Valid for new customers. One per household. Cannot be combined with other offers.

5-Star Google Rated
Same-Day Available
No After-Hours Fees
CA Lic #1115191

Deals that make calling us even easier.

Take advantage of our limited-time offers and enjoy reliable service at an even better price.

Buy A Drain Clean, Get A Free Camera Inspection!

($199 in Saved Value)

Book An Appointment

$100 Off Water Heater Repair & Install Services

( Valid for all installs, repairs & replacements. )

Book An Appointment

$0 Dispatch Fee with any Drain Services

($80 in Saved Value)

Book An Appointment

SPECIAL FINANCING AVAILABLE

View Details For More Information

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Got Questions

We’ve Got Straight Answers.

The questions Sonoma, Marin, and Napa County homeowners ask us most — answered plainly, without the runaround.

Still not sure?

Call us and talk to a real plumber. No scripts, no hold music. Just honest answers.

☎ (707) 387-1312 or request an estimate online →
How quickly can you get a plumber to my home?
We respond in minutes, not days. For most service calls in Sonoma and Marin County we can have a technician at your door the same day. For plumbing emergencies, we’re fully staffed around the clock — and we don’t charge after-hours fees for emergency calls.
Do you charge a dispatch or diagnostic fee?
We offer a $0 dispatch fee with drain services, and we give you a full upfront quote before any work begins. You’ll know exactly what it costs before we touch a thing — no surprise charges, no ambiguous line items.
What plumbing services do you offer?
We handle it all — water heater installation and replacement, drain cleaning, sewer line services, pipe repair and repiping, fixture installation, gas line services, water filtration, smart plumbing, and 24/7 emergency response. If it’s plumbing, we do it right.
Are you licensed and insured in California?
Yes. West Coast Plumbing holds California Contractors License #1115191. Every technician we send to your home is licensed, background-checked, and fully insured. You’re protected from the moment we show up.
Do you offer financing?
Yes — we offer flexible financing options including 0% interest plans for qualified customers. A major repair or replacement shouldn’t have to wait because of budget. View financing options here or ask us when you call.
How do I know if I have a plumbing emergency?
If you have a burst pipe, sewage backup, gas leak, complete loss of water pressure, or a water heater that’s actively flooding — that’s an emergency. Don’t wait. Call us immediately at (707) 387-1312. We’re available 24/7 with no after-hours surcharge.
Do I need a permit for plumbing work in California?
For most significant plumbing work — water heater replacements, repiping, sewer line work, gas line installs — yes, a permit is required under California code. We pull permits and handle all inspections as a standard part of the job. This protects you legally and matters when you sell your home.
What areas do you serve?
We serve Sonoma County (Santa Rosa, Petaluma, Sebastopol, Rohnert Park, Windsor, Healdsburg, Sonoma, Cotati), Marin County (Novato, San Rafael, Mill Valley, Corte Madera, Larkspur, Fairfax, San Anselmo, Tiburon), and Napa County (Napa, St. Helena, Calistoga, Yountville, Oakville, Rutherford). Don’t see your city? Give us a call — we likely cover your area.
How do I shut off my water in an emergency?
Your main shutoff valve is typically located where the water line enters your home — often near the water meter, in a crawl space, or in a utility room. Turn it clockwise to close. If you can’t find it or it won’t turn, call us immediately and we’ll walk you through it while a technician heads your way.
Do you work on older homes with galvanized or cast iron pipes?
Absolutely. Older homes throughout Sonoma and Marin County often have galvanized steel, cast iron, or polybutylene pipes. We specialize in repiping these systems with modern copper or PEX — improving water pressure, water quality, and reliability for decades to come.

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