The area we serve here
- 85212
85212 covers the Eastmark master-planned community and the neighborhoods around Phoenix-Mesa Gateway Airport in southeast Mesa. This is the newest part of the city, and the houses built here are younger than most of the places in the rest of this site.
First question: is it still under warranty?
If your home is only a few years old, a slab leak may be covered by a builder warranty, a structural or plumbing warranty or a home warranty. Policies vary, and their terms about plumbing and slab leaks vary even more. Before you pay for a repair, check:
- Does the builder offer a plumbing or workmanship warranty, and how long does it last?
- Does a purchased home warranty cover slab leaks, or does it exclude them or cap them at a low amount?
- Do you need approval or a specific contractor to keep the warranty valid?
- Is a written leak report required to support the claim?
A documented detection report is useful in every scenario: you hand it to the builder, the warranty company or your insurer. Our insurance guide lists what to gather.
Why new-home leaks tend to look different
| Cause | What it looks like |
|---|---|
| Fitting or connection failure | A leak at a joint rather than a pinhole in the pipe wall; often appears in the first years |
| Settling and soil movement | New slabs and soils settle; a line that was stressed during construction can eventually fail |
| Pipe damaged during construction | A nick or kink from the build that shows up later as a leak |
| High pressure | Newer neighborhoods may have high static pressure unless a reducing valve is working |
Because these causes are about workmanship, not age, a spot repair is more often a complete answer here than in an older house. Still, a leak in a newer house is a reason to pressure test the rest of the system rather than assume the problem is isolated.
Post-tension slabs: why layout comes first
Many newer Arizona homes are built on post-tension slabs, which are reinforced by steel cables stressed after the concrete cures. Cutting one of those cables is a serious safety and structural problem. Before any slab is opened, the area should be scanned and the cables located, and the opening placed to avoid them. This is not an optional step, and you should ask the contractor how they will do it. In some cases the presence of cables is also a reason to favor a reroute or tunneling, which avoid cutting the slab.
Plumbing layouts in newer homes
Builders sometimes route supply lines in the attic or through manifolds, which means a leak may not be under the slab at all. A damp spot can come from a line in the wall, an overhead run or a fixture connection. A short detection visit rules out the slab before anyone cuts the floor. If your house uses overhead lines, the attic is part of the search, and we will look there too.
- PEX tubing is common in newer homes; leaks are typically at fittings, not pinholes.
- Manifold systems let you shut off a single fixture, which can stop a leak without turning off the whole house.
- Pressure should be checked early; new homes often leave the factory setting on the high side.
Whatever the cause, bring facts: the build date, any builder documents and your warranty paperwork. If you are in 85212 and a leak has shown up, SlabGuard in southeast Mesa can help with the technical findings, and our team will explain what the builder or warranty provider may want to see. The 24/7 line covers urgent situations here too.
Questions people ask
Should I call my builder before a plumber?
If the home is within a warranty period, yes, at least to understand the terms. If water is running, shut it off and stabilize the situation first, then notify the builder.
Will a repair void my builder warranty?
It can, if the warranty requires approved contractors or prior notice. Ask in writing before authorizing work.
Are leaks in new homes usually a small repair?
Often, since the cause is local, like a bad fitting. Pressure testing the rest of the system is still worthwhile.
Last updated October 16, 2026. This page offers general information to help you understand and describe a problem; it is not a diagnosis of your home. Only an on-site inspection can confirm a leak or the right repair.