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

Lake Sherwood · Slab leaks

Slab leak repair
in Lake Sherwood

Slab leak repair in Lake Sherwood, ten minutes, over the hill from the shop in Westlake Village. Most Conejo Valley houses built between 1965 and 1990 have copper water lines in the slab. That copper is fifty years old and starting to fail.

Call (805) 330-3111 Request a visit

Dan picks up when he can and calls back the same day. You get the price before we start. Monday to Friday, 9am – 5pm.

Licensed CSLB #339618
Insured Bonded and insured
Since 1977 49 years, two generations
On Google 5.0 stars
From the shop Ten minutes, over the hill
Permits Ventura County. Lake Sherwood is unincorporated.
Guarantee One year on our labor. Thirty days on drain clearing.
ZIP codes 91361

Around here

In Lake Sherwood

Before a slab leak can be repaired at Lake Sherwood, we have to rule out the guest house, the pool equipment and the irrigation, since any of them can turn the meter too. Once they're isolated and hot is split from cold, the leak-locating specialist we bring in marks the spot under the concrete. Then it's a spot repair or a reroute overhead.

Neighborhoods: Sherwood Country Club, the lake, the Hidden Valley edge, the older lakeside streets.

01

Work nobody can account for

Older lakeside houses

Mixed-age plumbing several generations have added to. We sort out what's there, then repair or replace.

Call about any of these (805) 330-3111 Mon–Fri 9–5 Request a visit →

The job

How it goes

A slab leak is a water line leaking under or inside the foundation. Soil, concrete, high pressure and hard water all wear the copper thin, and hot lines go first.

We isolate the line with the meter and gauges, and the leak-locating specialist we bring in marks the spot within a foot or so, plus any post-tensioned cables. A spot repair opens the floor there and replaces the bad section. A reroute abandons the line under the slab and runs a new one through the attic, leaving nothing in the concrete.

One leak on a sound line is a spot repair. A second leak within a year or two means the pipe is done, and a reroute beats opening the floor again. We'll tell you which you've got.

Call if

What you notice,
and what it usually is

01

A warm patch on the floor

A hot line leaking under the slab.

02

The meter turns with everything off

A pressurized leak. If nothing's visible, it's usually the slab.

03

Damp carpet or lifting floors with no fixture nearby

Water coming up through the slab.

04

The water heater runs all the time

Hot water's leaking out, so the tank never catches up.

05

A second leak a few months after the first

The line is failing. Time to talk about a reroute.

Four steps

How a job goes

  1. 01

    You call

    Dan picks up when he can and calls back the same day. Tell him what it's doing.

  2. 02

    We look

    We come out, find the cause and show you, with the old part in hand when there is one.

  3. 03

    You get a price

    Before anything starts. Repairs are time plus parts. Bigger jobs get a written bid.

  4. 04

    We do the work

    Small repairs usually get done the same visit. Bigger jobs get a start date we keep. Permitted where needed, and the house left clean.

Common questions

Slab leaks in Lake Sherwood: things people ask

Do you go through the gate at Sherwood?
Yes. We call ahead with the truck and name so the gate expects us, or your estate manager can set it up with us directly.
How fast can you get to Lake Sherwood?
Often the same day. It's ten minutes over the hill. For planned work on a big house, we walk it first.
Do you have to break up the floor?
For a spot repair, one opening about the size of a coffee table. A reroute runs overhead and doesn't touch the floor.
How long is the water off?
A spot repair is usually a day. A one-line reroute takes one to two days, with the water off only while we connect each end.
Will my insurance cover a slab leak?
Many policies cover the damage and the access work. The pipe usually isn't covered. We give you photos and a written scope for the adjuster.

Other questions (805) 330-3111 Mon–Fri 9–5 Request a visit →

Google reviews

What people say

5.0 ★★★★★ 8 reviews on Google

Dan standing in front of his white work truck, smiling.

★★★★★

“Outstanding work! Did a terrific job of diagnosing the issue over the phone prior to repair. Plumber was on time and on point. Work was done quickly and thoroughly. Figured out the most straightforward way to fix the problem and got it done. Small footprint, quick results, up and running in no time. Would absolutely recommend.”

David Loomstein · September 2026

★★★★★

“The absolute best plumber in Los Angeles!”

Neil D. · September 2026

Nearby

More in Lake Sherwood

Slab leaks nearby: Westlake Village · Thousand Oaks · Agoura Hills · Oak Park

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Leave your details and Dan will call you back

Name, number and what it’s doing. It goes to Dan, and he calls back to set a time, usually the same day. If it’s leaking right now, skip the form and call (805) 330-3111.

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Slab leaks · Lake Sherwood

Tell Dan what
it’s doing

Most problems get sorted out on a short call. Ten minutes, over the hill from the shop. Monday to Friday, 9am – 5pm.

Dan picks up

(805) 330-3111 Send Dan 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 Dan (805) 330-3111