Homes & vacation rentals
Most of my jobs for repiping in Malibu, CA are single-family homes, from older beach cottages to hillside houses with long runs. I plan the work so you have water at night on most days.
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Local Repiping in Malibu, CA
Rusty water, weak pressure, one pinhole leak after another? New pipe ends the patch-and-pray cycle.
Written by Sergio, owner of Malibu Plumbing Pros. Last updated October 2026.
Brown water for a few seconds every morning. A shower that drops to a trickle when someone flushes. A third pinhole leak this year, each one a new hole in the drywall. Those are the signs I hear before most jobs for repiping in Malibu, CA. I'm Sergio, and I'll tell you if your pipes need to be replaced or just repaired.
Repiping means running new water lines through the house to replace the old ones. It's a big job. I'll walk you through the plan, give you a written upfront price, and keep the mess as small as I can.
When Repiping May Be the Right Next Step
Sound familiar? These are the calls we get most.
Rusty or brown water
Water comes out orange or brown, mostly first thing in the morning. Old steel pipe rusting from inside.
Pressure keeps dropping
Every faucet is weak, not just one. Rust and minerals are closing up the inside of the pipes.
Pinhole leaks, again
Little green spots or drips on copper pipe. One gets fixed and another shows up a few months later.
Pipes outside are crusty
Exposed pipes and fittings near the ocean are green, flaky or swollen from salt air.
Buying or selling a house
The inspector flagged galvanized pipe. Buyers and insurers often ask about it.
Fire rebuild or remodel
Walls are open or the house is being rebuilt. Best time there is to put in all new water lines.
Repiping in Malibu, CA for Homes & Businesses
Shops, restaurants & property managers
For small shops, restaurants and multi-unit rentals, I can repipe in sections and schedule shutoffs around your hours or your guests.
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Same four steps on every repiping job.
- STEP 01
Find out what you have
Check pipe type, age, pressure and leak history. Sometimes a section repair is enough.
- STEP 02
Map the new routes
Plan where new lines run so we open as few walls as possible, and mark every cut with you.
- STEP 03
Run the new pipe
Install PEX or copper, new shutoff valves, and tie in the water heater and every fixture.
- STEP 04
Test and inspect
Pressure test the system, pass the city inspection, then close the openings and clean up.
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Hillside Homes, Slabs and Tight Spots
Malibu houses don't make repiping easy. Some sit on concrete slabs, so I route new lines through the attic and down the walls instead of breaking the floor. Some hang on hillsides with a crawlspace you can barely sit up in. Others have tile walls in every bathroom that nobody wants to touch.
This is the kind of puzzle I like. I'll look for closets, cabinet backs and garage walls where we can run pipe out of sight. I'll fish flexible pipe through the framing so we cut small holes instead of long trenches. If the only way through is a tile wall, I'll tell you before we start, not halfway through.
Why Old Pipes Fail Near the Coast
A lot of older homes still have galvanized pipe, which is steel dipped in zinc. Square One puts its life at about 40 to 50 years. It rusts from the inside out, so it can look fine from outside while the inside closes up. That's why the pressure drops and the water turns brown. They also note steel corrodes faster where it's connected straight to copper or brass, which is pretty much every old house that's had a few repairs.
Copper lasts a long time, but it isn't perfect. Hard water from District 29 (its 2024 report lists average hardness of 272 parts per million at one plant) leaves mineral scale inside pipes. Near the beach the salty air eats at any pipe or fitting it can reach (crawlspaces, hose bibs, the line to the outdoor shower) and turns copper green and steel flaky.
PEX or Copper for Repiping in Malibu, CA?
Both are good. Here's how I explain it:
- PEX is a flexible plastic water pipe. Replumb Specialties explains it can be fished through the framing without long drywall cuts. It costs less, it doesn't rust, and it shrugs off salt air.
- Copper is rigid metal pipe. It's proven and handles heat well, but it needs bigger wall openings to install, and it costs more in parts and labor.
For most whole-house repiping in Malibu, CA, I suggest PEX inside the walls. Where pipe is exposed to sun, like near a water heater or outside, I use copper or protect the PEX. If you want all copper, I'll do all copper. It's your house.
Fire Rebuilds: New Plumbing From Day One
Malibu knows fire. The Los Angeles Times reported that the 2018 Woolsey Fire destroyed 465 Malibu homes, and fewer than 40% had been rebuilt by early 2025. Then the January 2025 Palisades Fire destroyed or damaged hundreds more. The City of Malibu says it issued its 100th Palisades Fire rebuild permit, with 370 planning approvals as of September 14, 2026.
Per the city's Malibu Rebuilds guide, a typical single-family rebuild needs building, mechanical, electrical, plumbing and septic permits. If you're rebuilding, I can plan the water lines, gas lines and water heater spot together, so nothing has to be torn out later. Homes that only had smoke or heat damage may still need pipes checked, since heat can soften plastic lines and weaken solder joints in the walls.
How Long It Takes and What It Costs
A typical house takes a few days. I open small holes at each fixture and along the route, run the new lines, and switch fixtures over one area at a time. On most days you'll have water back by evening. After the inspection passes we patch the openings.
National numbers to give you a feel: Replumb Specialties says the average PEX repipe runs $3,500 to $11,000. Their data shows about $5,837 for homes under 2,200 square feet, $10,595 for 3,500 to 4,500 square feet and $16,124 for homes over 6,000. Copper costs more. Bigger homes and hillside access push a job for repiping in Malibu, CA higher, so I give you a written price for your house before we start.
What to Expect
Time: most homes take a few days, with water back on in the evenings on most days.
Mess: plastic sheeting and drop cloths, small wall openings only where needed, and daily cleanup. Patching is planned up front so you know who closes the walls.
Permits: in Malibu I pull the plumbing permit through City of Malibu Building Safety and meet the inspector.
Cost: national average for a PEX repipe is $3,500 to $11,000 per Replumb Specialties. For repiping in Malibu, CA you get my written upfront price first.
Last updated October 2026.
How do I know if my house needs repiping?
Look for brown water, weak pressure at every faucet, or repeat leaks in different spots. If you have galvanized steel pipe, it's likely past its life, since Square One puts it at about 40 to 50 years. One leak doesn't mean a full repipe. I'll check and tell you if a section repair will do.
Is PEX safe for drinking water?
Yes. PEX is approved for drinking water in plumbing codes across the country and is widely used in new homes. It doesn't rust and it holds up well against salt air. I keep it out of direct sun, because sunlight breaks it down, and use copper where pipe is exposed outside.
Can I stay in my house during a repipe?
Most people do. I work on one area at a time and turn the water back on at the end of most days. There will be some noise and some small holes in the walls for a few days. I'll tell you which days will have the longest shutoffs so you can plan.
How much does repiping a house cost?
Replumb Specialties reports a national average of $3,500 to $11,000 for a PEX repipe, and about $16,124 for homes over 6,000 square feet. Copper costs more. Your price depends on size, access and wall finishes, and I give it to you in writing before we start.
Should I repipe while rebuilding after the fire?
If your walls are open, yes, it's the best time. The City of Malibu's rebuild guide lists plumbing among the permits a typical home needs. New lines go in fast when nothing is in the way, and I can plan the gas line and water heater location at the same time.