Foundation Repair in Tulsa, OK

A century of housing, four distinct soil zones, and one clay layer under almost all of it.

Tulsa is big enough that "foundation repair" means a different job depending on the zip code. A 1925 pier and beam in Maple Ridge, a 1956 slab in Lortondale, a 1998 slab in the Union district, a 2015 build off 121st. Different houses, same dirt. We work all of it, from the Osage County line to the Bixby bottoms, and we inspect for free anywhere inside the city limits.

Tulsa at a glance

Population: about 413,000
Median year homes were built: about 1973
Owner occupied share: 51.9%
Median home value: $205,300

Source: U.S. Census Bureau, American Community Survey 5 year estimates

What Tulsa sits on

The bedrock under Tulsa is Pennsylvanian shale, laid down about 300 million years ago when this was a shallow sea. Shale weathers into clay, and the clay it makes here is smectite, the most expansive clay mineral there is. Across the flats of Midtown, east Tulsa, and South Tulsa that clay runs 8 to 15 feet deep before it stiffens into weathered shale. Push piers in Tulsa usually hit refusal somewhere between 18 and 30 feet.

There are three exceptions, and they matter. Along Riverside Drive, through the River Parks stretch, and south into the Bixby bottoms, the Arkansas River left sand and silt instead of clay. That ground drains fast, carries a high water table, and settles rather than heaves. On the north and west sides, from Turkey Mountain up through the hills around Gilcrease and Reservoir Hill and out toward Sand Springs, sandstone ridges push bedrock close to the surface. Thin clay over rock means fewer pier jobs and more slope and drainage trouble. Out east toward Catoosa the shale gives way to limestone and the soil gets rockier and shallower.

Dry cracked clay soil in a Tulsa yard during drought, the soil behind most Tulsa foundation repair

Tulsa housing by era and zone

Pre war Midtown. Maple Ridge, Florence Park, Kendall Whittier, Cherry Street, Swan Lake, Owen Park, and the north end of Brookside. Built from the 1910s through the 1940s on pier and beam, with brick stacks or cedar posts under the joists and a crawl space you can barely roll through. What fails: piers tilt or sink into the clay, joists rot at the sill, floors slope toward the middle of the house, plaster cracks over doorways. What fixes it: new concrete pads or helical piers, steel posts, sistered joists, and a dry crawl space.

1950s Lortondale and east Tulsa. Lortondale went up between 1954 and 1957 on thin slabs with flat roofs. Ranch Acres, Mayo Meadow, and the streets along Admiral and 11th east of Sheridan followed on the same kind of slab. Shallow grade beams poured straight onto the clay. What fails: a corner drops after a dry summer, brick stair steps along the mortar, tile cracks in a line across the kitchen. What fixes it: push piers at the corners, then leveling the slab back.

1970s to 2000s South Tulsa and the Union district. Everything from 71st south to 121st between Riverside and Garnett, plus the Union schools side of the river over to the Jenks line. Slab on grade, with post tension slabs becoming common after about 1990. What fails: differential movement from trees planted in 1980 that are 50 feet tall now, sprinkler heads soaking one side, pool decks pulling away. What fixes it: helical piers where the slab has dropped, and a drainage fix before any of that.

North Tulsa older stock. Gilcrease Hills from the 1970s, Suburban Acres, the streets around Greenwood and Pine, out toward Turley. A mix of 1920s to 1960s pier and beam and slab. The sandstone ridge along Gilcrease is stable; the flats east of Peoria are heavy clay. What fails: drainage that was never finished, crawl spaces that stay wet, and small problems left long enough to become big ones.

Our Midtown Tulsa and South Tulsa pages go block by block through each of those zones.

The years that moved Tulsa's foundations

Ask anyone who's done this work in Tulsa and they'll name the same years.

2011. More than 50 days over 100 degrees and almost no rain from May to September. Clay shrank deeper than it had in decades. Repair calls roughly tripled in 2012.
2015. May 2015 was the wettest month on record in Oklahoma. The clay that shrank in 2011 swelled back, unevenly. Houses that had cosmetic cracks got structural ones.
2019. The Arkansas River flood in late May. Keystone Dam releases pushed water against the levees in west Tulsa and Sand Springs and saturated everything along Riverside and down into Bixby. Alluvial soils consolidated as the water dropped, and slabs near the river settled over the following year.
2023 and 2024. Back to back dry summers with long stretches over 100. Calls across the metro ran well above normal in spring 2025.
2025. A wet spring landed on soil that was still resettling from the heat. Heave on top of settlement.
2026. Oklahoma's worst drought since 2012, with 50 plus days over 100 in Tulsa. Yards opened up in cracks you could drop a hand into. The settlement from this one will keep showing up through 2027.

What fails where

Midtown flats: tilted piers, sloping floors, crawl space moisture.
1950s slabs east and south of downtown: corner settlement, stair step brick cracks.
South Tulsa slabs: differential movement from trees and sprinklers, cracked post tension slabs at the corners.
River bottoms: settlement after high water years, high water table in crawl spaces.
North and west ridges: slope creep, water running under the house, less heave.

Services available in Tulsa

Tulsa neighborhoods we cover

Nearby suburbs

What it costs in Tulsa

Tulsa jobs set the range for the rest of the metro:

Standard pier install (6 to 10 piers): $5,500 to $12,000
Heavy settlement repair: $14,000 to $25,000+
Pier and beam releveling with new piers: $4,000 to $10,000
Concrete leveling driveway: $1,200 to $3,000
Crawl space encapsulation: $7,500 to $14,000

Older Midtown houses with tight crawl spaces cost more per pier because the crew works on their stomachs. South Tulsa slabs with open access cost less. Either way, we give written quotes after a free inspection. No phone estimates.

Same day quotes for Tulsa addresses. Call before noon and we can almost always be at your house the same day or next morning.

Tulsa foundation FAQs

Does the whole city of Tulsa sit on expansive clay?

Most of it. The flats across Midtown, east Tulsa, and South Tulsa are smectite clay weathered out of Pennsylvanian shale. The exceptions are the river bottoms along Riverside and south toward Bixby, which are sand and silt, and the sandstone ridges on the north and west sides where bedrock is shallow. Those areas have their own problems, mostly drainage and settlement rather than heave.

My Tulsa house is from the 1920s and never had a problem. Why now?

Clay has a memory. Every drought shrinks it a little deeper and every wet spring swells it back unevenly. The 2011 drought, the 2015 floods, the 2023 and 2024 heat, and the 2026 drought each left a mark. Add trees that were saplings in 1950 and are 60 feet tall now, and a house that rode it out for a century finally shows a crack.

Did the 2019 Arkansas River flood damage foundations in Tulsa?

Yes, mostly on alluvial soil near the river. Homes along Riverside, in west Tulsa behind the levees, and down in the Bixby bottoms sat in saturated ground for weeks. When the water dropped, the sand and silt consolidated and some slabs settled. The damage showed up over the following year, not during the flood.

How deep do piers go in Tulsa?

Push piers in Tulsa usually reach refusal between 18 and 30 feet, where weathered shale gets firm enough to carry the house. On the sandstone ridges north and west of downtown it can be shallower. In the river bottoms helical piers are often the better call because the sand does not give push piers enough resistance.

Do you do free inspections inside Tulsa city limits?

Yes. Every inspection in Tulsa is free, with a written quote after we measure the floor. No phone estimates, no photo estimates.

Other locations: Broken Arrow | Owasso | Jenks

Get a Free Inspection

We come look, you get a written quote. No pressure.