Foundation Repair in Tempe, AZ

Facts About Tempe and Foundation Repair

The middle Tempe house went up in 1983, which decides how its slab was built

Foundation repair in Tempe: the Census puts the median year built in Tempe at 1983, so this describes a great many houses here.

Age matters because the way slabs were built changed across the decades, and the method decides what is inside the concrete. A slab can be post-tensioned — pulled tight by steel cables after the pour — or conventionally reinforced with rebar, and an addition poured later can be either. Those take different repairs, and a contractor who has not established which one you have is quoting a method rather than a job.

Ask which it is before anyone prices anything, and ask how they know. On a post-tension slab the cable layout has to be located before a single hole is cut, because cutting a live cable is a much larger problem than the one being fixed.

37 percent of Tempe sits on soil that sheds water instead of taking it

The USDA sorts soil into four groups by how fast water moves down through it. Group A drains freely; group D holds water at the surface. Measured against the city limits, 37 percent of Tempe is group C or D.

On a foundation that figure is about where rain goes once it lands. Ground that sheds does not take water down quickly, so roof water and runoff stay near the surface, and the place they collect is often the edge of the slab.

That is also why the cheapest work is outside. A downspout that ends at the slab and ground that slopes toward the house send water to exactly the place it lingers. Ask for those two to be checked before anything under the house is priced.

A ten-year storm drops 2.22 inches on Tempe in a day, and it lands beside the slab

The National Weather Service publishes what a storm drops here. In Tempe a ten-year storm delivers 2.22 inches of rain in twenty-four hours.

That is not a rare storm. It is one a house should expect a few times over a thirty-year mortgage, and where the roof water lands decides how much of it ends up against the edge of the slab.

So the storm figure is a reason to look at the ground first. Ask where each downspout ends and which way the soil falls within a few feet of the house. Those are the cheapest fixes on any foundation, and they are the ones that get skipped. If a gutter overflows at one corner in a storm that size, a photograph taken while it is raining shows a contractor exactly where the water lands.

How long the ground stays wet at the slab edge decides where to look first

The largest soil mapped in Tempe is rated: Well drained

Drainage class is the USDA rating for how readily water leaves a soil. It is a fact about the ground, not a verdict on any house. It says how long rain lingers at the edge of a slab, and that is why the first checks on a foundation here are outside: where the roof water lands, and which way the ground falls.

Source: USDA NRCS Soil Survey Geographic Database (SSURGO), via Soil Data Access

The age of the house decides how its slab was built

The median year built in Tempe is 1983

A post-tensioned slab and a conventionally reinforced one take different repairs, and the method changed across the decades. On a post-tension slab the cable layout has to be located before anything is cut. Ask which construction you have, and ask how they established it.

Source: US Census Bureau, American Community Survey 5-Year Estimates 2023

How foundation repair works

Foundation repair is the business of putting support under a house that has lost it. A pier is driven or drilled down to ground that does not move, the structure above is lifted back toward where it started, and the load is transferred onto the new support. The house is not made new. It is made stable.

Three things decide the price, and none of them is the size of the house. How many support points it needs. How many of those are indoors, because an interior point means opening the floor and closing it again. And how deep each one has to go before it reaches competent ground, which is measured during installation rather than assumed beforehand.

Doors and windows that stick

A door that catches at the top corner, a window that will not close square, or a gap that opens along the top of a frame. These are the frame telling you the opening is no longer rectangular. Before booking anything, get relative floor elevations measured across the whole house — a survey costs a fraction of a repair and is the only thing that says whether the movement is 1 inch or 3, and whether it is still going.

Cracks in brick, drywall or the slab

A stair-step crack through brick mortar, a diagonal crack from a door corner, or a line across a slab. Width is the wrong single test: a hairline crack that is growing matters more than a wider one that has been still for a decade. A dated photograph with a ruler in it, taken a few months apart, costs nothing and answers the only question that decides whether to repair or to watch.

Which foundation repair method fits a Tempe house

Foundation Repair Inspection. A foundation inspection takes relative floor elevations across the whole structure and writes them down, so the shape and size of the movement is a measurement rather than a description. Foundation Repair Inspection in Tempe, AZ.

Foundation Crack Repair. Cracks are repaired once movement has stopped. Sealing one that is still opening buys a season and removes the only thing telling you how fast the house is moving. Foundation Crack Repair in Tempe, AZ.

House Foundation Leveling. Leveling a house means installing support below the soil that is moving, then raising the structure back toward its original elevation as far as it will safely go. House Foundation Leveling in Tempe, AZ.

Concrete Leveling Repair. Concrete leveling raises a sunken slab by filling the void underneath it, either with a cement slurry or with expanding foam, and the concrete itself is reused. Concrete Leveling Repair in Tempe, AZ.

Foundation Drainage and Moisture Control. Water standing against a slab keeps the ground the house bears on wet, so the work is getting roof water and runoff away from the house before anything else is priced. Foundation Drainage and Moisture Control in Tempe, AZ.

Commercial Foundation Repair. Commercial foundation work is priced from occupancy, phasing and engineered load before it is priced from area, because the building usually has to keep operating. Commercial Foundation Repair in Tempe, AZ.

Choosing between two of them

Two questions come up often enough to have their own pages, and both are decided by the site rather than by preference. Pressed Piles vs Drilled Piers in Tempe, AZ. Mudjacking vs Foam Lifting in Tempe, AZ.

Not sure which of those it is?

The pages above are sorted by what you can see, not by what a contractor would call it. If none of them is obviously yours, the index lists every job a Tempe lot might need and what each one is the answer to. Services in Tempe, AZ.

Read how a Tempe Foundation Repair Co estimate works for the six steps from an address to a written quote. See About Tempe Foundation Repair Co for the arrangement in full, including what this site is not.

When you do not need foundation repair

Two things get mistaken for foundation failure more than anything else. The first is a hairline crack in mortar, plaster or a garage slab. If it has been there for years and has not widened, it is usually a shrinkage crack from when the material cured, not a structural one. The second is a door that binds for part of the year and swings free for the rest. That door is following the season. Wood framing takes on moisture and gives it back, and the door and its frame move with it. Neither one is a reason to put piers under a house. A contractor who quotes on either without measuring first is selling you the wrong job.

Two checks worth making before anyone quotes you.

• Date the crack. Mark both ends with a pencil and write the date on the wall beside it. Measure the width against something known: a dime is about a sixteenth of an inch. Look again in three months. A crack that has not moved is not an active one, and no pier will make it narrower.
• Watch one door through a season change. A door that sticks for part of the year and clears again when the season turns is tracking the weather. It is not a failing foundation. A door that has bound a little harder every year for two years is the one worth an inspection. That is the pattern to describe when you call.

If both checks come back quiet, wait a season and look again before spending anything larger.

Read what a Tempe foundation repair job costs before calling anyone, and check the Tempe Foundation Repair Co service area to see whether your street is covered.