Open Mon–Fri 9–5 · Often same day in Westlake Village ★ 5.0 on GoogleCSLB #339618
Dan’s PlumbingFamily run since 1977

Lake Sherwood · Leak detection

Leak detection & repair in Lake Sherwood

5.0 on Google (20 reviews) CSLB Lic. #339618 Family shop since 1977

Leak detection & repair in Lake Sherwood, ten minutes, over the hill from the shop in Westlake Village. Some leaks you can see. Others show up as a high water bill, a warm floor or a stain that keeps coming back.

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

Dan and Dave of Dan's Plumbing in navy company shirts, standing in front of their white work truck
Dan (left) and Dave
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
★★★★★
“Did a terrific job of diagnosing the issue over the phone prior to repair. Small footprint, quick results, up and running in no time.”
David Loomstein
★★★★★
“Dan is smart and good at figuring things out. He will stay on it until it's right and he knows his stuff.”
Tracey S. · Simi Valley
★★★★★
“When I called him out and he immediately came my house within 2 hours and did a really quick and great job for my bathroom.”
Ziwei Xia · Westlake Village

Around here

In Lake Sherwood

Leak detection at Lake Sherwood usually means finding the quiet one: a line out to a guest house or the pool equipment, or an irrigation lateral, that's run for months before the bill gives it away. At the meter we separate the house from each outbuilding and from the irrigation, then narrow it down. We set up gate clearance before we come.

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.

The job

How it goes

We start at the meter. If it turns with everything off, the leak is on the supply side. Then we isolate hot from cold, house from irrigation and branch from branch with gauges. Under a slab, the leak-locating specialist we bring in listens through the concrete and marks the leak, and any post-tensioned cables, before anyone cuts.

Around here it's usually pinholes in fifty-year-old copper, a slab leak, a failed shower pan leaking into the wall below, or a toilet seal. Irrigation shares the meter too, and it's often the answer when the bill jumps in summer.

If we can reach the pipe, we usually fix it that visit. Under concrete or behind tile, you get a written bid before anything's opened.

Call if

What you notice, and what it usually is

01

The water bill jumped for no reason

A supply leak. A ten-minute meter test narrows it down.

02

The meter turns with everything off

A leak somewhere between the meter and a fixture.

03

A warm spot on the floor

A hot line leaking under the slab.

04

A ceiling stain under a bathroom

A shower pan, toilet seal or drain joint. We find which before opening the ceiling.

05

Water running when nothing is on

A leak in a wall or under the floor.

Tell us what it’s doing and we can usually narrow it down on the phone.

Work in Lake Sherwood

Recent jobs

March 2026

Irrigation leaks, all from high pressure

Several irrigation leaks on one property, all from street pressure with no regulator on that side. Over two visits we installed an irrigation shutoff, a house shutoff, a pressure regulator and a relief valve, then repaired the leaks and replaced three sprinkler valves.

From the blog

Job stories: leak detection

All job stories →

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

Leak detection 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 open walls or floors to find it?

Not to find it. The meter and gauges do that, and under a slab the specialist marks the spot. The repair may need one opening, marked before anything's cut.

Could it be the irrigation?

Often. Sprinklers share the meter, and a broken lateral or a valve that won't close looks like a house leak on the bill. We check irrigation first.

Does insurance cover this?

Policies vary. Most cover sudden damage and the work to reach the leak. The pipe itself usually isn't covered. We give you photos for the claim.

What people say

5.020 Google reviews
★★★★★
“Dan's plumbing were fantastic, they installed the AWTOS water sensor our Insurance company sent us, fixed some clogged exterior drains that were blocked, and installed a new trash disposal unit...all for a very competitive price. Thanks guys, we're glad we called you!”
Benjamin Cinelli
★★★★★
“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
★★★★★
“Dan is consistent. Professional, on time, only does what is needed, experienced, easy to work with, clean, and smart.”
Chad Hellmuth

Nearby

More in Lake Sherwood

Plumber in Lake Sherwood Everything we do in Lake Sherwood. Water heaters in Lake Sherwood Houses at Lake Sherwood often run two or three water heaters on a recirculation loop, and when one fails, nobody's sure which. Tankless in Lake Sherwood Around Lake Sherwood, a tankless install is usually a conversion on a big house that already runs more than one heater, and the recirculation loop has to keep working afterward. Sizing the gas from the meter is most of the job. We test the line under pressure, fit isolation valves for the yearly descale and permit it through Ventura County. Drain cleaning in Lake Sherwood Drain cleaning at Lake Sherwood is mostly the older houses by the lake, where the plumbing has been added onto by a long line of people. Repiping in Lake Sherwood Repiping a large Lake Sherwood house comes down to the order of work. Repairs in Lake Sherwood Lake Sherwood is gated, so we clear the truck with the gate before any plumbing repair visit. Sewer camera & repair in Lake Sherwood At Lake Sherwood the sewer runs to Triunfo Water and Sanitation District, and on lots this size a camera inspection covers a long line from the house to the main. We run it from the cleanout and mark the fault and its depth on the surface. On the older lakeside houses, it often turns up work nobody has a record of. Gas lines in Lake Sherwood On a Lake Sherwood property, gas lines run to the guest house, the pool equipment and an outdoor kitchen, so the sizing comes off the whole load at the meter. Each line is black iron with a shutoff at the appliance, pressure tested and permitted through Ventura County. We arrange gate clearance before we come. If you smell gas, leave and call SoCalGas. Pressure regulators in Lake Sherwood A Lake Sherwood property often runs the house, the irrigation and the pool equipment off one main, and the side with no pressure regulator is the one that starts failing. In March 2026 we found several irrigation leaks here, all from street pressure with nothing holding it back. We put in two shutoffs, a regulator and a relief valve, then fixed the leaks. Slab leaks 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.

Leak detection nearby

Dan of Dan's Plumbing at an outdoor drain, smiling

Tell Dan what it’s doing.

Most problems get sorted out on a short call. Ten minutes, over the hill from the shop. Leaking right now? Shut off the main, then call.

Or send the details and Dan will call you back. Monday to Friday, 9am – 5pm.

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, 91360, 91320, 91301, 91377, 91302, 90265.

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