Dan’s Plumbing Est. 1977 · Westlake Village Call Danny (805) 330-3111 Request a visit

Services · 08

Copper and PEX
repiping

A repipe replaces every water line in the house. It is the answer when the pipe itself is failing, and the wrong answer for one leak. We tell you which you have.

Call (805) 330-3111 Request a visit

Danny picks up when he can, and calls back the same day. Say what it is doing and you will usually have a rough answer, and a price, in two minutes.

Pricing Quoted before we start
Where Westlake Village, Thousand Oaks, Agoura Hills, Oak Park
Guarantee One year on our labor. Thirty days on drain clearing.
License CSLB #339618

The job

How it goes

Two kinds of house need it. The older ones with galvanized steel, which rusts closed from the inside over decades, so the pressure falls slowly and the water runs brown after the house has stood overnight. And the far more common one here: sixties and seventies copper that has started to pinhole. One pinhole is a repair. Three in two years is a pattern, and each repair is buying a few months.

Copper or PEX. Copper is what most of these houses have, it is rigid, and it is joined with press fittings now instead of solder, which is faster and cleaner in a finished house. PEX is flexible tubing run from a manifold, so each fixture has its own line, it pulls through walls with fewer openings, and it does not pinhole. Both are permitted, both are inspected, and both come with a written scope that lists every line. We say which we would put in your house, and why.

A typical house is two to four days. We work it in stages so the water is off for a few hours at a time and back on every evening. Openings in the drywall are kept small and marked, and every one is listed on the bid so there is no surprise about what needs patching afterward. You stay in the house.

Call if

What you notice,
and what it usually is

01

Brown water first thing in the morning

Galvanized pipe rusting inside. The pipe is closing up.

02

Pressure that has slowly dropped over years

Same. The bore of the pipe is getting smaller.

03

The third pinhole leak in a couple of years

The copper is at the end of its life. Each repair is buying a few months.

04

Blue-green stains at fixtures

Copper dissolving into the water, usually from high pressure and age.

05

Buying or selling a house with original pipe

A repipe with a permit and an inspection card is worth more than the same house without one.

Say what it is doing when you call. Most of these get narrowed down in two minutes on the phone.

How it goes

Four steps, and you have the price at step three

  1. 01

    You call

    Danny picks up when he can, and calls back the same day. Tell him what it is doing and where.

  2. 02

    We look

    We come out, find the cause and show you. In plain words, with the part in our hand where there is one.

  3. 03

    You get a price

    Before anything starts. Repairs are our time plus parts, and the bigger jobs get a written bid. Nobody here is on commission.

  4. 04

    We do the work

    Small repairs are usually done the same visit. Bigger jobs get a start date and a number of days, and we hold to it. Done to code, permitted where it needs it, the house left the way we found it.

Common questions

Things people ask about copper & PEX repiping

Copper or PEX?
Both are good. Copper is what the house was built with and what a buyer expects to see. PEX is quicker, needs fewer openings and never pinholes. In a slab house where the old lines are in the concrete, either one gets rerouted overhead. We bid whichever fits the house, and both if you want to compare.
How long is the water off?
A few hours at a time, and on every evening. We sequence the work so the house keeps running.
Do I need to move out?
No. It is noisy for a few days and there are openings in some walls, and that is the extent of it.
Is a permit required?
Yes. A repipe is inspected before the walls are closed. The permit and the inspection are in the bid.

Google reviews

What people say

5.0 ★★★★★ 5 reviews on Google

★★★★★

“Dan is consistent. Professional, on time, only does what is needed, experienced, easy to work with, clean, and smart.”

Chad Hellmuth · September 2026

★★★★★

“Dan's Plumbing did excellent job for us replacing our broken water pressure regulator. Quick response, good price, great quality of work. Will hire them again.”

Igor Gavryushkin · Westlake Village · January 2026

Where we do this

Close to the shop

The shop is in Westlake Village. Everything we cover is about ten minutes from it, so same day is often realistic.

Request a visit

Leave your details, and Danny calls you back

Your name, your number and a line about what it is doing. It goes straight to Danny's phone and he calls back to set a time, usually the same day. If it is leaking right now, skip the form and call (805) 330-3111.

If the form does not appear, open it in a new tab or call (805) 330-3111.

Repiping

Tell Danny what
it’s doing

Describe the symptom and you will usually have an answer in two minutes. You get the price before any work starts. Monday to Friday, 9am – 5pm.

Danny picks up

(805) 330-3111 Send Danny the details

Find us

Dan's Plumbing

2352 Hillsbury Rd
Westlake Village, CA 91361

(805) 330-3111 · Monday to Friday, 9am – 5pm

Serving Westlake Village, Thousand Oaks, Agoura Hills, Oak Park and Lake Sherwood. Zip codes 91361, 91362, 91301, 91377.

Call Danny (805) 330-3111