Fixtures keep failing, one after another
A failed regulator.
Lake Sherwood · Pressure regulators
5.0 on Google (20 reviews) CSLB Lic. #339618 Family shop since 1977
Water pressure regulators in Lake Sherwood, ten minutes, over the hill 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.
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 his crew are absolutely the best! Professional, communicative and fair prices. Couldn't ask for anything more!”
“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.”
“Dan is smart and good at figuring things out. He will stay on it until it's right and he knows his stuff.”
Around here
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.
Neighborhoods: Sherwood Country Club, the lake, the Hidden Valley edge, the older lakeside streets.
The job
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
A failed regulator.
Water hammer. High pressure makes it worse.
No expansion tank, a failed regulator, or both.
A regulator on its way out.
A quick gauge test says if it needs one.
Tell us what it’s doing and we can usually narrow it down on the phone.
Work in Lake Sherwood
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.
Four steps
Dan picks up when he can and calls back the same day. Tell him what it’s doing.
We come out, find the cause and show you, with the old part in hand when there is one.
Before anything starts. Repairs are time plus parts. Bigger jobs get a written bid.
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
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.
Often the same day. It's ten minutes over the hill. For planned work on a big house, we walk it first.
Between 50 and 70 psi. Code allows up to 80. Above that, most fixture warranties are void.
Near the front hose bib or main shutoff. It's a bell-shaped brass valve with a screw on top.
Yes, with a hardware-store gauge on a hose bib. Over 80, or a big swing when a tap runs, means it's due.
“My 12 year old water heater started leaking yesterday so I texted him, and he called me right away to help me turn off the water and gas. And he was here next day with a new water heater installed.”
“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!”
“Dan showed up right on time for our appointment. Much better service and pricing. We will definitely use Dan's Plumbing in the future.”
Nearby
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
(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.