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Repiping Services · Sonoma & Marin

Your Last Repipe.

Whole-house and partial repipes for Sonoma and Marin homes. PEX or copper, walls patched, permits pulled, work warrantied — turning an old-pipe problem into something you don’t have to think about for decades.

4.9★ · 120+ Google Reviews Licensed · CA #1115191 Local · Sonoma & Marin
Six Signs It’s Time to Repipe

When Patching Isn’t Enough Anymore.

Pipes don’t fail all at once. They give warning — through your faucets, your walls, your water bill. Most homeowners patch the same problems three or four times before realizing the whole system has run its course. Here’s how to tell when patching is throwing money away.

Rusty or Discolored Water

Brown, yellow, or red-tinted water from any tap usually means corrosion inside your pipes — especially in galvanized steel systems. Once the rust starts, it never stops on its own.

Low Water Pressure Throughout the House

If pressure has dropped at every fixture — not just one — the pipes themselves are restricting flow. Mineral buildup and corrosion narrow the inside of pipes until even high city pressure can’t push through.

Repeated Leaks in Different Spots

Patching one leak in old pipes is like fixing one shingle on a 50-year-old roof — another will appear soon, somewhere else. Three leaks in three years means the system is failing.

Higher-Than-Normal Water Bills

If your bill went up but your usage didn’t, you have a hidden leak somewhere — likely behind a wall or under a slab. A repipe is often cheaper than years of slow-leak water and damage repair.

Visible Corrosion on Exposed Pipes

Check the pipes under your sinks and in the basement. Green rings on copper, flaking rust on steel, or pitting anywhere — that’s the visible portion of damage that runs through every pipe in the wall.

Your Home Was Built Before 1980

Pre-1980 homes typically have galvanized steel pipes (lifespan: 40–60 years) or polybutylene (recall-failed). Pre-1986 homes may have lead solder. If your house is in this range, the question isn’t if — it’s when.

A repipe is a real investment. So is patching the same pipes for a decade. An honest inspection will tell you which makes sense for your home.

Why Repipes Are Common Here

North Bay Pipes Have Three Big Enemies.

Three things make repipes especially common in Sonoma and Marin homes — and they’re working on your house whether you’re paying attention or not.

Older Homes & Old Materials

Many North Bay homes — downtown Petaluma Victorians, Santa Rosa craftsman bungalows, San Rafael mid-century ranches — were built with galvanized steel pipes that have a 40-60 year lifespan. Most are well past it.

Hard Water Accelerates Wear

Santa Rosa and Novato have some of the hardest water in California. Mineral buildup narrows pipes from the inside out, and the higher pH eats away at copper. Hard water doesn’t just affect appliances — it shortens the life of every pipe in the house.

Soil & Climate Stress

The North Bay sits on active fault lines and expansive clay soils. Earthquakes, ground shift, and seasonal soil movement all stress the supply lines coming into your house. Combined with coastal moisture and recent wildfires, our pipes work harder than most.

Our Repiping Services

From One Bathroom to The Whole House.

Not every repipe is a tear-out. Sometimes the right answer is targeted — one bad section, one problem area. Sometimes it’s the full system. Honest inspection tells us which.

Whole-House Repiping

Replace every supply line in your house with modern PEX or copper. Most homes finish in 2–5 days, walls patched and painted. Built to last 50+ years — longer than most homeowners stay in the house.

Partial Repiping

Targeted replacement of a single problem area — a bad branch, a slab leak, one bathroom’s supply lines. The right call when most of the system is sound but one section has failed.

Remodel Repiping

If you’re renovating a kitchen or bathroom anyway, the walls are open. That’s the cheapest possible time to upgrade old pipes. We work with your contractor on timing and access.

Galvanized Pipe Replacement

If your house was built before 1980, you likely have galvanized steel pipes. They rust from the inside out and are the leading cause of low pressure and discolored water. We replace them with PEX or copper — never another generation of steel.

Emergency Pipe Replacement

When a pipe bursts at 11 PM on a Sunday, you don’t have time to interview contractors. We do same-day emergency replacements with permanent fixes — not patches that leak again next month.

Pipe Inspection & Diagnostics

Not sure if you need a repipe? We’ll inspect, test pressure, identify pipe material, and give you a straight answer. Sometimes the answer is “not yet” — and we’ll tell you that for free.

The West Coast Difference

Repiping Without The Nightmare.

Most homeowners delay a repipe because they’ve heard the horror stories. Walls torn open, drywall dust everywhere, the project running weeks past schedule. We don’t work that way.

West Coast Plumbing technician performing whole-house repiping in a Sonoma County home
Why Homeowners Choose Us
  • Most Repipes in 2–5 Days

    We don’t leave your house torn open for two weeks. Most whole-house repipes finish in 2–5 working days — with water restored every evening so your family can stay in the home.

  • Walls Patched and Painted

    Drywall repair is part of the job, not an extra you find a separate contractor for. We close the walls, texture-match, and paint — you shouldn’t see where we worked.

  • PEX or Copper — Your Choice

    Both have advantages. PEX is faster, more flexible, and often less expensive. Copper is the gold standard for longevity. We explain the tradeoffs honestly — not push the one with the better margin.

  • Permitted, Inspected, Warrantied

    Every repipe is permitted with the city or county and signed off by an inspector. The work is documented for your records — useful for future home sales, insurance, and your own peace of mind.

Common Questions

Honest Answers About Repiping.

How do I know if I actually need a whole-house repipe?

Three or more leaks in three years is a strong signal. So is rusty water from multiple taps, low pressure throughout the house, or visible corrosion on the pipes you can see. We’ll inspect, test pressure, identify the pipe material, and give you a real answer — including “not yet” if that’s the truth.

PEX vs. copper — which is better?

Both are excellent. PEX is flexible, freeze-resistant, faster to install, and typically 20–30% less expensive. Copper has been around for 80+ years with proven longevity (50–70 years) and a familiar look in exposed runs. For most modern repipes, PEX wins on cost and install speed without sacrificing performance. For some custom homes or historic renovations, copper still makes sense. We’ll tell you which fits your situation honestly.

How much does a whole-house repipe cost?

Most whole-house repipes in Sonoma and Marin run $4,500–$15,000 depending on home size, pipe material chosen, accessibility, and complexity. Single-bathroom partial repipes typically run $1,800–$4,000. We give detailed written quotes after on-site inspection — never vague phone estimates that change at the end of the job.

How long does a whole-house repipe take?

Most whole-house repipes finish in 2–5 working days. Day 1 is rough-in and pipe replacement. Day 2–3 is inspection and drywall. Day 4–5 is patching and paint touch-up. Water is typically only off during working hours — restored each evening so your family can stay in the home throughout.

Do you do the drywall repair too, or do I need a separate contractor?

Yes — drywall patching, texture matching, and basic paint touch-up are part of the job. You don’t need a separate drywall contractor. For very specialty finishes (custom textures, unusual paint matches), you may want a pro painter for final touch-up, but the wall openings will be closed and patched cleanly when we finish.

Will my house be unusable during the repipe?

No. We schedule water shutoffs during working hours only, restore service every evening, and protect floors, furniture, and finishes throughout. Most families stay in the home during the entire project. We work in zones so you always have at least one bathroom available, and we communicate the plan day-by-day.

Ready to Stop Patching
and Start Solving?

Book a free in-home repipe estimate. We’ll inspect your pipes, identify the material, test pressure, and give you a written quote — honestly and upfront.