Accurate slab leak detection and repair for homes with hot spots, pressure loss, damp flooring, or high water bills. Plumbers & Rooters Inc helps Pasadena and Altadena property owners fix plumbing problems the right way: diagnose first, explain clearly, complete clean work, and leave you with practical options instead of pressure.
Call (626) 807-7717 for same-day scheduling when available, emergency help, or a planned appointment. We serve single-family homes near Bungalow Heaven, hillside properties in Altadena, older Pasadena apartments, commercial kitchens, small businesses, HOAs, and property managers throughout the San Gabriel Valley.
Altadena homeowner? Visit our Altadena slab leak repair page.

A slab leak is a leak in a water line running beneath your concrete foundation, and it behaves differently from an ordinary pipe leak — you usually cannot see it directly. Pasadena's hard water is especially corrosive to copper pipe over time, and many slab homes here from the 1950s–1970s still run on their original copper supply lines, now decades past when corrosion typically starts causing pinhole leaks.
The giveaways are a warm spot on an otherwise cool floor, the sound of running water when every fixture is off, an unexplained jump in your water bill, or cracks appearing in flooring. Any one of these on its own is worth a look; more than one together is worth calling about soon.
Before recommending any repair, we locate the leak precisely using acoustic listening and thermal imaging — we do not break concrete on a hunch. This step alone often saves homeowners from unnecessary demolition, since the actual leak point is frequently smaller and more localized than the symptoms suggest.
Once we know exactly where the water is, we walk through the real options: whether the leak can be reached without breaking the slab at all, whether a spot repair makes sense, or whether the pipe has a pattern of failures pointing toward a bigger fix.
Not every slab leak means breaking up your floor. Where the layout allows, we can reroute the affected line through the walls or ceiling above, bypassing the slab entirely — often the least invasive option. Where rerouting is not practical, a targeted spot repair through a small access point in the slab may be the right call.
If the same copper system has had more than one slab leak, that pattern usually means the whole line is nearing the end of its service life, and we'll walk through repiping as the more permanent fix rather than repeating slab access repairs every year or two.
Cost depends on the leak's location, how easy the pipe is to access, and which repair path we take — reroute, spot repair, or a larger repipe. We give you a clear estimate before any work starts, once we know exactly what we're dealing with, rather than a number based on guesswork.
A slab leak is generally treated as an emergency — the longer water sits under a foundation, the more damage it can cause. We respond 24/7 from our Pasadena base at 609 N Hill Ave, and provide fast local response throughout Pasadena and Altadena.
We locate first and dig second — a slab leak repaired based on a guess can mean breaking concrete in the wrong spot. As a Licensed CA Contractor #1055253, we're open 24/7 with no surcharge nights, weekends, or holidays, and our 5.0 Google rating across 61 reviews reflects that precision.
Altadena homeowner? Visit our Altadena slab leak repair page.
Classic signs: a warm spot on the floor, the sound of running water when everything is off, an unexplained spike in your water bill, or cracks appearing in flooring.
Not necessarily. We locate the leak precisely with acoustic and thermal tools first. When possible we reroute the pipe through the walls or ceiling instead of accessing it through the slab.
It depends on the layout and where the leak sits. Rerouting avoids the slab entirely when it's feasible; a spot repair through a small access point makes sense when it isn't. We'll explain which applies to your home.
Cost depends on the leak's location, pipe access, and whether we repair the spot or reroute the line. We give you a clear estimate before any work starts.
Do not wait for a plumbing issue to turn into water damage, a shutdown, or a bigger repair. Call Plumbers & Rooters Inc now for Pasadena and Altadena plumbing service.
Call Now: (626) 807-7717We dispatch 24/7 β same flat rate day or night, no holiday surcharges. A real person answers every call.