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

Plumber in Thousand Oaks · Ventura County

Plumber in Thousand Oaks

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

We cover all of Thousand Oaks: the east side in 91362 (North Ranch, Lang Ranch, Sunset Hills), central and north Thousand Oaks in 91360, and Newbury Park in 91320.

Tell us where you are and what's going on. If Dan can't pick up, he calls back that day. You get the price before we start. Nobody here works on commission. Monday to Friday, 9 to 5.

Dan and Dave of Dan's Plumbing in navy company shirts, standing in front of their white work truck
Dan (left) and Dave
County
Ventura County
ZIP codes
91362, 91360, 91320
From the shop
Ten minutes
Permits
City of Thousand Oaks Building & Safety.
★★★★★
“Dan is consistent. Professional, on time, only does what is needed, experienced, easy to work with, clean, and smart.”
Chad Hellmuth
★★★★★
“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

Why it happens

What Thousand Oaks is plumbed with

The east side went up in two waves. The tracts off Erbes Road and along Westlake Boulevard are sixties and seventies slab houses, with copper supply and cast iron or early ABS drains. Lang Ranch and the hillside pockets above it came in the nineties and two thousands. Up there, the elevation means high static pressure, and heaters and regulators are all due for their first replacement.

Newbury Park, at the west end, is mostly sixties tracts with Dos Vientos on the hill above, built from 1997. Casa Conejo is a county island inside it, so permits there go through Ventura County, not the city.

Thousand Oaks protects its oaks by ordinance. Roots get into old clay pipe joints and back up the sewer lateral, and the shortest route to replace it often crosses a root zone you can't dig in. We find that out before a machine goes on the lawn.

Streets and pockets we work in: Lang Ranch, Sunset Hills, North Ranch, the Westlake side of the boulevard, the older tracts off Erbes Road, central Thousand Oaks, Newbury Park.

Most weeks

What people in Thousand Oaks call about

01

The drain backs up every few months

Sewer laterals & roots →

We run a camera first so you can see which joint has gone. Then it's one section or the whole run, dug around whatever's growing over it.

02

Leaks turning up in several places

Whole-house repipes →

Copper or PEX, once the original supply is worn out. We sequence it so the water's off for hours and you can stay home.

03

A water bill that jumped

Slab leaks →

We find it first. One bad spot and the start of a pattern are very different jobs.

04

The water heater is on its way out

Water heaters →

Tank replacement and tankless conversion. On a conversion, most of the work is the gas sizing and the venting.

Dan was working some of these streets when the houses were twenty years old.

Work in Thousand Oaks

Recent jobs

September 2026

A new toilet in a guest bathroom

In central Thousand Oaks. We pulled the old toilet in the back guest bath and set a Toto Ultramax with a new wax seal, a new supply line, caulk at the base and a soft-close seat.

Repairs →
October 2025

Tank to tankless, and a fire pit line tested

Swapped a tank heater for a condensing tankless unit. We also capped the fire pit gas line, pressure-tested it at 10 psi for fifteen minutes and hooked up the owner's fire ring.

Tankless →
December 2025

A shower leak that turned out to be pressure

A leaking shower valve got a new cartridge. The house's leak-monitor app showed high pressure, so we tested the regulator at the front of the house, found it had failed and replaced it.

Pressure regulators →
November 2025

A main line blocked with flushable wipes

Snaked the main from several points and pulled out a pile of wipes. Same month, another house: roots in the main, cut out with a chain knocker and checked with the camera.

Drain cleaning →
June 2026

A gas smell outside the dining room

On the Westlake side of town. Dug down to a hole in a half-inch galvanized gas pipe and replaced the horizontal run. With the gas back on, a second leak showed up where the pipe enters the house, so we shut it off again for the next stage.

Gas lines →

From the blog

Job stories from Thousand Oaks

All job stories →

More from Thousand Oaks

Before we start

Local notes

Permits, water and access in Thousand Oaks.

Permits
City of Thousand Oaks Building & Safety.
Water
Cal Water on the east side, city water in the middle, California American Water in Newbury Park. Triunfo sewer on the Westlake and North Ranch side.
Trees
Oak tree ordinance affects trenching.
Foundations
Mostly slab. Raised in some older pockets.

Inside Thousand Oaks

The neighborhoods, and what is different in each

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
★★★★★
“If you're looking for a plumber who actually knows what they're doing look no further than Dan's plumbing. We use them on all of our projects”
Western Building Contractor
★★★★★
“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

Common questions

Things people in Thousand Oaks ask

Which part of Thousand Oaks do you cover?

All of it. The east side in 91362, central and north Thousand Oaks in 91360, and Newbury Park in 91320.

How fast can you get to Thousand Oaks?

Often the same day. The east side is ten minutes from the shop, and Newbury Park is the far end. Call and Dan will give you a time.

How does pricing work?

You get the price before we start. Repairs are our time plus parts, and bigger jobs get a written bid. Nobody here works on commission.

Does the oak tree ordinance affect a sewer repair?

It can. The city protects oaks and their root zones, so a trench can't always take the shortest route. We locate the line from the surface and plan around the trees first.

Who pulls the permit in Thousand Oaks?

We do, through City of Thousand Oaks Building & Safety, for water heaters, gas lines, repipes and remodels. We handle the inspection.

By the job

What we do in Thousand Oaks, job by job

All services →
Leak detection & repair in Thousand Oaks Tracking down a leak on the east side of Thousand Oaks depends on the neighborhood. In the sixties and seventies tracts off Erbes Road, it's copper in the slab. Water heater repair & replacement in Thousand Oaks The late-nineties Lang Ranch houses in Thousand Oaks are all coming up on their second water heater at once. Drain cleaning in Thousand Oaks Thousand Oaks protects its oaks by ordinance, and that matters for drain cleaning when a clog turns out to be in the sewer. Sewer camera inspection & sewer repair in Thousand Oaks In Thousand Oaks, a sewer camera inspection shows where the line has failed and whether a repair can stay out of a protected oak root zone. Copper & PEX repiping in Thousand Oaks Repipes in Thousand Oaks come from the older east-side tracts, where sixties and seventies copper has pinholed more than once. Gas line installation & repair in Thousand Oaks Most gas line jobs on the east side of Thousand Oaks lately have been outdoor kitchens and fire pits. Plumbing repairs in Thousand Oaks On the east side of Thousand Oaks, plumbing repairs are mostly small and usually take one visit. Tankless water heaters in Thousand Oaks Tankless work in Thousand Oaks is mostly conversions, and the gas line from the meter gets upsized for a whole-house unit. Water pressure regulators in Thousand Oaks Pressure regulators in Thousand Oaks hold back street pressure that comes in above the 80 psi the code allows on the east side, and higher above Lang Ranch. Slab leak repair in Thousand Oaks Most slab leaks in Thousand Oaks come from the sixties and seventies tracts off Erbes Road and along Westlake Boulevard, with the copper in the concrete.

Next door

Also working in

Every place we cover →
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 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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