01
Work nobody can account for
Older lakeside houses
Plumbing of mixed vintage that several generations have extended. We work out what is there first, then repair or replace on what we find.
Lake Sherwood · Slab leaks
Slab leak repair in Lake Sherwood, ten minutes, over the hill from the shop in Westlake Village. Most houses built in the Conejo Valley between 1965 and 1990 sit on a concrete slab with the copper water lines run through it. That copper is now fifty years old, and slab leaks are what happens next.
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.
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.
Streets and pockets we work in: Sherwood Country Club, the lake, the Hidden Valley edge, the older lakeside streets.
01
Older lakeside houses
Plumbing of mixed vintage that several generations have extended. We work out what is there first, then repair or replace on what we find.
If that is what yours is doing (805) 330-3111 Mon–Fri 9–5 Request a visit →
The job
A slab leak is a water line leaking under or inside the foundation. Copper under concrete fails from the outside, where the pipe touches soil or the slab itself, and from the inside, where high water pressure and hard water wear it thin. Hot lines go first, because hot water is harder on copper. The tells are a warm patch on the floor, a meter that keeps turning, a bill that has jumped, or a sound of running water with nothing on.
Finding it is the first job, and it is done from above. We isolate the line with the meter and gauges, then bring in the leak-locating specialist we have used for years to listen for it through the slab and mark the spot to within a foot or so, along with any post-tensioned cables in the concrete. Then there are two ways to fix it. A spot repair opens the floor at the mark, cuts out the failed section and puts in new pipe. A reroute abandons the line under the slab and runs a new one overhead, through the attic and down the wall, so nothing is left in the concrete to fail again.
Which one is right comes down to the condition of the rest of the line. One leak on a line that is otherwise sound is a spot repair. A second leak on the same line within a year or two means the pipe itself is done, and rerouting it is cheaper than opening the floor a third time. We tell you which situation you are in, and why, before you decide.
Call if
01
A hot line leaking under the slab. The most common slab leak there is.
02
A pressurized leak somewhere. If nothing is visible, the slab is the usual place.
03
Water coming up through the slab.
04
Hot water leaving through a leak, so the tank never catches up.
05
The line is failing. Time to talk about a reroute.
How it goes
Danny picks up when he can, and calls back the same day. Tell him what it is doing and where.
We come out, find the cause and show you. In plain words, with the part in our hand where there is one.
Before anything starts. Repairs are our time plus parts, and the bigger jobs get a written bid. Nobody here is on commission.
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
A question that is not here (805) 330-3111 Mon–Fri 9–5 Request a visit →
Google reviews
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
Slab leaks nearby: Westlake Village · Thousand Oaks · Agoura Hills · Oak Park
Request a visit
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.
If the form does not appear, open it in a new tab or call (805) 330-3111.
Slab leaks · Lake Sherwood
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.
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, 91301, 91377.