01
Fixtures keep failing, one after another
Pressure. The regulator is gone and everything downstream is taking it.
Lake Sherwood · Pressure regulators
Water pressure regulators
in Lake Sherwood
Water pressure regulators in Lake Sherwood, ten minutes, over the hill from the shop in Westlake Village. The water comes into the Conejo Valley from tanks on the hills, so on a lot of streets it arrives well above the 80 psi the code allows inside a house. The regulator is the part that protects everything after it.
Call (805) 330-3111
Request a visit
Danny picks up when he can, and calls back the same day. You get the price before we start, and nobody here is on commission. Monday to Friday, 9am – 5pm.
Licensed
CSLB #339618
Insured
Bonded and insured
Since 1977
49 years, two generations
On Google
5.0 stars
In Lake Sherwood
What this job looks like
in Lake Sherwood
Lake Sherwood properties often have more than one thing running off the main: the house, the irrigation, the pool equipment. When nothing is regulating the pressure on one of those sides, that side is the one that starts failing. In March 2026 we worked on a property here with several irrigation leaks, every one of them caused by street pressure with nothing holding it back. We put in a shutoff for the irrigation, a shutoff for the house, a pressure regulator and a relief valve, then repaired the leaks and replaced three sprinkler valves. Two visits. We check the pressure at every house we work in here.
Streets and pockets we work in: Sherwood Country Club, the lake, the Hidden Valley edge, the older lakeside streets.
If that is what yours is doing (805) 330-3111 Mon–Fri 9–5 Request a visit →
The job
How it goes
A pressure regulator is a valve on the main line where it enters the house, usually near the front hose bib. It takes street pressure, which here can be 100 psi and more, and holds the house at 50 to 70. They last ten to fifteen years. When one fails it fails quietly: the pressure creeps up, and the first sign is that things start breaking. Toilet fill valves, angle stops, faucet cartridges, the washing machine hoses, the relief valve on the water heater. People replace those one at a time for years without knowing why.
The test takes a minute. A gauge on a hose bib reads the pressure, and if it is over 80, or if it swings when a fixture shuts, the regulator is done. Replacement is a few hours: the old valve comes out, a new one goes in with unions so the next one is easier, and we set it to what the house wants and check it at a tap. If the water heater has no expansion tank, it gets one at the same time, because a regulator with no expansion tank is what makes the relief valve drip.
We check the pressure at every house we work in. It is the single most useful thing to know about a house in this valley, and a working regulator is the cheapest insurance the plumbing has.
Call if
What you notice,
and what it usually is
02
Banging pipes when a valve shuts
Water hammer, and pressure makes it worse. The regulator is the first thing to check.
03
The water heater relief valve drips
No expansion tank, or a failed regulator, or both.
04
The shower blasts, then fades
A regulator hunting. It is on its way out.
05
Your house has never had one
Some do not. A gauge on the hose bib says whether it needs one.
Work in Lake Sherwood
From the invoice book,
names left off
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March 2026
Irrigation leaks, all from high pressure
Several irrigation leaks on one property, every one of them caused by street pressure with nothing regulating it on that side. Installed a shutoff for the irrigation, a house shutoff, a pressure regulator and a relief valve, then repaired the leaks and replaced three sprinkler valves. Two visits.
How it goes
Four steps, and you have the price at step three
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01
You call
Danny picks up when he can, and calls back the same day. Tell him what it is doing and where.
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02
We look
We come out, find the cause and show you. In plain words, with the part in our hand where there is one.
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03
You get a price
Before anything starts. Repairs are our time plus parts, and the bigger jobs get a written bid. Nobody here is on commission.
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04
We do the work
Small repairs are usually done the same visit. Bigger jobs get a start date and a number of days, and we hold to it. Done to code, permitted where it needs it, the house left the way we found it.
Common questions
Pressure regulators in Lake Sherwood: things people ask
- Do you go through the gate at Sherwood?
- Yes. We call ahead with the truck and the name so the gate is expecting us. If you have an estate manager, they can set it up with us directly.
- How fast can you get to Lake Sherwood?
- Ten minutes over the hill from Westlake Village, so same day is usually realistic. For planned work on a large house we come out first and walk it.
- What should my water pressure be?
- Between 50 and 70 psi inside the house. Code allows up to 80. Above that, fixtures are outside what they were built for and the warranties on most of them are void.
- Where is my regulator?
- Almost always on the main line as it enters the house, near the front hose bib or the main shutoff. It is a bell-shaped brass valve with an adjusting screw on top.
- Can I test the pressure myself?
- Yes. A gauge that screws onto a hose bib costs about ten dollars at a hardware store. Read it with everything off, then with a tap running. Over 80, or a big swing between the two, and it is time.
A question that is not here (805) 330-3111 Mon–Fri 9–5 Request a visit →
Google reviews
What people say
5.0 ★★★★★ 5 reviews on Google
★★★★★
“Dan is consistent. Professional, on time, only does what is needed, experienced, easy to work with, clean, and smart.”
★★★★★
“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.”
2 of the 5, word for word. Read the rest on Google → Had us out? Leave a review →
Nearby, and related
More in Lake Sherwood,
and this job elsewhere
- Plumber in Lake Sherwood The whole town: what the houses are plumbed with, what people call about, the neighborhoods.
- Leak detection in Lake Sherwood On a Lake Sherwood property the leak that matters is usually the quiet one: a line out to a guest house or the pool equipment, or an irrigation lateral, running for months before a bill gives it away. We isolate the house from every outbuilding and from the irrigation at the meter, then narrow it down. Gate clearance is arranged before we come.
- Water heaters in Lake Sherwood Houses around Sherwood run two or three water heaters and a recirculation loop, and when one fails nobody is sure which.
- Tankless in Lake Sherwood Tankless installs at Lake Sherwood are usually conversions on large houses that already run more than one heater, with a recirculation loop that has to keep working afterward. Gas sizing from the meter is most of the job on a house this size; we test the line under pressure, fit isolation valves so the unit can be descaled yearly, and permit it through Ventura County.
- Drain cleaning in Lake Sherwood Drain work at Lake Sherwood is mostly the older lakeside houses, where the plumbing has been added to by a long succession of people and a slow drain can be a vent problem as easily as a clog. We clear it, camera it if it has happened before, and tell you what is down there.
- Repiping in Lake Sherwood A repipe on a large Sherwood house is mostly a matter of sequence: three water heaters, a loop, lines to outbuildings, and a household that needs water every evening. We map what is there first, write it down, and run the new lines in stages with the water back on each night. Permit and inspection through Ventura County.
- Repairs in Lake Sherwood Lake Sherwood is gated, so we clear the truck with the gate before the visit, and there are two of us at most, which keeps a repair from turning into a crew in your house. The work itself is the ordinary list: toilets, faucets, disposals, angle stops, hose bibs, shower valves, with the parts on the truck. The older houses around the water are the ones that take longer. Plumbing there has been added to by a long succession of people, so a repair often starts with working out what is there. Danny picks up when he can, and calls back the same day.
- Sewer camera & repair in Lake Sherwood Sewer lines at Lake Sherwood run to Triunfo Water and Sanitation District, and on lots this size the run from the house out to the main is a long one.
- Gas lines in Lake Sherwood Lake Sherwood properties run gas the way they run everything else, out to a guest house, the pool equipment and an outdoor kitchen, with a fire pit or a spa heater somewhere along the way. Long runs and several appliances mean the sizing comes off the whole load at the meter, so nothing at the far end starves. If you smell gas, leave and call SoCalGas from outside, and we take it from there. The line is black iron with a shutoff at each appliance, tested under pressure, permitted and inspected through Ventura County. Gate clearance is arranged before we come.
- Slab leaks in Lake Sherwood Lake Sherwood makes a slab leak harder to spot, because a property here has lines running out to a guest house, the pool equipment and the irrigation, and any one of them can turn the meter and lift a bill the same way. So we isolate the house from the outbuildings and from the irrigation first, then hot from cold, and narrow it to a line. Where it is under concrete, the leak-locating specialist we work with listens through the slab and marks the spot before anything is cut. Then a spot repair at that mark or a reroute overhead. Any permit goes through Ventura County.
Pressure regulators nearby: Westlake Village · Thousand Oaks · Agoura Hills · Oak Park
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Your name, your number and a line about what it is doing. It goes straight to Danny's phone and he calls back to set a time, usually the same day. If it is leaking right now, skip the form and call (805) 330-3111.
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Pressure regulators · Lake Sherwood
Tell Danny what
it’s doing
Describe the symptom and you will usually have an answer in two minutes. You get the price before any work starts. Ten minutes, over the hill from the shop. Monday to Friday, 9am – 5pm.