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

Thousand Oaks · Pressure regulators

Water pressure regulators
in Thousand Oaks

Water pressure regulators in Thousand Oaks, ten minutes from the shop in Westlake Village. Conejo Valley water comes from tanks on the hills, so on many streets it arrives above the 80 psi code allows in a house.

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
Permits City of Thousand Oaks Building & Safety.
Guarantee One year on our labor. Thirty days on drain clearing.
ZIP codes 91362

Around here

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. When one fails, fill valves, angle stops and faucet cartridges go one after another. In December 2025 a shower valve here needed a new cartridge and the regulator had failed too, so we replaced both.

Neighborhoods: Lang Ranch, Sunset Hills, North Ranch, the Westlake side of the boulevard, the older tracts off Erbes Road.

01

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.

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

The job

How it goes

A regulator is a valve on the main line, usually near the front hose bib. It takes street pressure, 100 psi and more here, and holds the house at 50 to 70. When one fails after ten to fifteen years, pressure creeps up and fill valves, angle stops, cartridges and washer hoses start breaking.

A gauge on a hose bib tests it in a minute. Over 80, or a swing when a fixture shuts, means it's done. Replacement takes a few hours, with unions so the next swap is easier. If the water heater has no expansion tank, we add one.

We check the pressure at every house we work in. Here, it's the most useful thing to know.

Call if

What you notice,
and what it usually is

01

Fixtures keep failing, one after another

A failed regulator.

02

Banging pipes when a valve shuts

Water hammer. High pressure makes it worse.

03

The water heater relief valve drips

No expansion tank, a failed regulator, or both.

04

The shower blasts, then fades

A regulator on its way out.

05

Your house has never had one

A quick gauge test says if it needs one.

Work in Thousand Oaks

Recent jobs

  • 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.

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

Pressure regulators in Thousand Oaks: things people ask

How fast can you get to the east side of Thousand Oaks?
Often the same day. It's ten minutes from the shop. Call and Dan will give you a time.
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.
What should my water pressure be?
Between 50 and 70 psi. Code allows up to 80. Above that, most fixture warranties are void.
Where is my regulator?
Near the front hose bib or main shutoff. It's a bell-shaped brass valve with a screw on top.
Can I test the pressure myself?
Yes, with a hardware-store gauge on a hose bib. Over 80, or a big swing when a tap runs, means it's due.

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 Thousand Oaks

Pressure regulators nearby: Westlake Village · Agoura Hills · Oak Park · Lake Sherwood

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Pressure regulators · Thousand Oaks

Tell Dan what
it’s doing

Most problems get sorted out on a short call. Ten minutes 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