01
A warm patch on the floor
A hot line leaking under the slab. The most common slab leak there is.
Services · 05
Slab leak repair
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.
Call (805) 330-3111
Request a visit
Danny picks up when he can, and calls back the same day. Say what it is doing and you will usually have a rough answer, and a price, in two minutes.
The job
How it goes
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
What you notice,
and what it usually is
02
The meter turns with everything off
A pressurized leak somewhere. If nothing is visible, the slab is the usual place.
03
Damp carpet or lifting flooring, no fixture near it
Water coming up through the slab.
04
The water heater runs all the time
Hot water leaving through a leak, so the tank never catches up.
05
A second leak a few months after the first
The line is failing. Time to talk about a reroute.
Say what it is doing when you call. Most of these get narrowed down in two minutes on the phone.
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
Things people ask about slab leak repair
- Do you have to break up the floor?
- For a spot repair, one opening about the size of a coffee table, at the mark. For a reroute, no floor is opened at all: the new line runs overhead and comes down the wall.
- How long is the water off?
- A spot repair is usually one day. A reroute of one line is one to two days, and the water is only off while the new line is connected at each end.
- Will my insurance cover a slab leak?
- Many policies cover the damage and the access work, and not the pipe. Check yours. We document the leak with photographs and give you a written scope, which is what the adjuster asks for.
- Should I repipe the whole house instead?
- If you have had two or three slab leaks, or the house still has its original copper and you plan to stay, a repipe ends the question. If it is the first leak, a repair or a reroute of that one line is the sensible step. We say which we would do in your house.
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 →
Where we do this
Close to the shop
The shop is in Westlake Village. Everything we cover is about ten minutes from it, so same day is often realistic.
- Slab leaks in Westlake Village
- Slab leaks in Thousand Oaks
- Slab leaks in Agoura Hills
- Slab leaks in Oak Park
- Slab leaks in Lake Sherwood
Zip codes 91361, 91362, 91301, 91377. Just outside? Call and ask.
Often goes with this
Related work
- Leak detection & repair Finding where the water is coming from before anything is opened up. Walls, ceilings, floors, slabs and yards.
- Copper & PEX repiping Whole-house repipes in copper or PEX when the original pipe has had enough. Sequenced so your water is only off a few hours at a time.
- Water pressure regulators High water pressure is behind a large share of the fixture failures in this valley. A regulator brings it down to what the house was built for.
Request a visit
Leave your details, and Danny calls you back
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
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. Monday to Friday, 9am – 5pm.