Slab leak repair and replacement in Tucson, AZ

Tucson sits in a basin ringed by the Santa Catalina, Rincon, Santa Rita and Tucson mountains. Housing ranges from historic adobe in older neighborhoods to newer homes in the foothills.

A warm floor, a bill that will not come down or a meter that keeps moving: these are the usual first calls from Tucson. Tucson had 542,658 residents at the 2020 Census. The older streets of Tucson were mostly built on slabs between the 1960s and 1980s, and some still have their original lines.

Lines in houses from these years tend to gather around the kitchen, baths and water heater closet, so the layout counts. Detached houses with small yards are typical. It changes where the technician starts.

Pools and drip systems are in so many yards that they are checked before the slab. Rocky soil and caliche are often found beneath slabs in this area. It changes how long an opening can take. A few minutes at the meter and the controller usually says whether the slab is involved.

In Tucson we cover 31 ZIP codes. Benson and Willcox are served by the same crews. Tucson sits within the Tucson & Southern Arizona dispatch area. The signs Tucson callers describe are the familiar ones, and the checks follow the same order.

Tucson is one of the oldest continuously inhabited places in the country, and its housing shows it. Downtown and midtown include early and mid-twentieth-century homes, not all on slabs. Farther out, 1970s onward subdivisions are mostly slab construction.

We group the city into four districts below because the likely cause changes with the neighborhood.

Much of Tucson sits on rocky desert soil with caliche layers. That slows digging and affects how a line can be reached, which is one reason the technician locates the leak precisely before opening anything.

Foothills lots can be steep as well as rocky. Tell us about access to the house when you call.

Many Tucson properties use desert landscaping with drip irrigation, and some have pools. Both can account for a high bill. We check the meter with everything off, then with the irrigation controller off, before looking under the house.

Older midtown lots often have long yard lines from the street, and those can leak without a wet spot indoors.

In 1970s and 1980s homes, copper under the floor has been in service a long time. Repeat pinholes are a common reason for a call on the east side and in older northwest tracts.

The technician locates the current leak and explains the options, including rerouting and repiping, if the pattern suggests it.

Parts of southern Tucson and the surrounding area have larger rural lots, and some homes sit empty for months. A leak can run for weeks unnoticed. Check the meter when you return.

If you are on a well or a private line, tell us. It changes where the system starts.

Locating the leak accurately comes first, which keeps any opening as small as the job allows.

Much of the ground under local slabs is caliche or packed desert soil, which affects access more than locating.

Some water loss never shows on the floor: evaporative coolers, running toilets, leaking hose bibs and slow drips. Each one is small, but added up they can lift a bill.

The technician locates them with the same equipment and explains the repair options once the line is found.

For an older home you are buying, the meter and the bills are the first clues to a hidden leak.