Broken Arrow is overwhelmingly slab-on-grade, and plenty of residents have never seen a house with beams and piers under the floor. The exceptions are mostly older homes close to the original downtown, a scattering of custom houses, and country places on the Wagoner County side. When one of those floors starts to slope, it helps to know what is actually holding the house up.
Under a typical pier and beam home here, a perimeter stem wall carries the outside walls while rows of piers carry beams through the middle. Floor joists span between those beams. Problems usually come from one row of piers sinking, a beam sagging between supports, or joists that were undersized for the span from the start.
We schedule free inspections in Broken Arrow from our shop on S Western Ave in south Oklahoma City. You get a written quote that names each pier, beam or joist we plan to touch. For moisture concerns under the same house, see our Broken Arrow crawl space page.
Why Raised Floors in Broken Arrow Start to Slope
The Broken Arrow area sits on clay soils that respond sharply to rain. A wet spring adds moisture and lift, and a hot, dry stretch pulls the soil back down. Piers along the side of the house that gets afternoon sun and the most roof runoff tend to move the most, which is why many sloped floors here tilt toward one side rather than sagging evenly.
Acreage homes toward the Verdigris River add open ground. Without curbs or storm drains, runoff from pasture or a long driveway can collect along one wall and keep the soil there softer than the rest of the lot. The piers in that soggy strip settle first, and the floor follows them down.
Warning Signs in Broken Arrow Homes
- A floor that tilts steadily toward one exterior wall rather than dipping in the middle.
- Exterior doors on the low side that scrape the threshold or no longer latch.
- A visible step where an older raised house meets a slab garage or addition.
- Cracks in brick veneer that widen near the corner of the house closest to a downspout.
- Windows on one wall that stick while those on the opposite wall work fine.
- Gaps between the kitchen counter backsplash and the wall on the low side.
Repair Options We Use in Broken Arrow
Adjustable steel support posts
Where a beam has a long unsupported stretch or a pier has dropped, adjustable steel posts on new footings let us lift that line and fine-tune it later if the clay shifts again. They suit Broken Arrow homes with enough crawl space height to work comfortably.
Sistering joists
On older homes near downtown, some joists were cut for plumbing or were light for their span. Fastening a full-length new joist alongside each weak one restores stiffness without tearing out the floor above.
Drainage correction around the foundation
On acreage lots, piers in a strip of wet soil will keep sinking until the water goes elsewhere. Buried downspout lines or regrading along that wall protect the support work we just paid to install.
Reshimming with steel shims
When the piers themselves are sound but the old wood shims have crushed, replacing them with steel shims is a modest fix. It is often all an older Broken Arrow home needs after a dry summer opens small gaps.
Where an Old Raised House Meets a Newer Slab
Many of the pier and beam homes we see in Broken Arrow have been added to over the years. A slab garage, a slab den or a slab-floored sunroom may be attached to a house whose original rooms sit on piers. The two foundations move differently: the slab rides on the clay as one piece, while the piers respond individually.
That difference shows up right at the doorway between old and new, often as a crack in the floor tile, a sticking door, or a small ramp in the floor. Our job is to make sure the pier and beam side is fully supported and level with the slab as closely as the framing allows. We do not repair the slab itself, and we will say so plainly if the movement is coming from that side.
Pier and Beam Repair Cost in Broken Arrow
For a Broken Arrow pier and beam home, adjustable steel support posts run $300 to $900 each and sistering a joist costs $300 to $900 each. Reshimming with steel shims and minor leveling runs $500 to $2,000. Downspout extensions and buried lines cost $300 to $2,000. Full leveling projects usually land between $2,500 and $10,000 depending on how many supports the house needs. We give you a free written quote before work begins.
Moisture under the house too? See crawl space repair in Broken Arrow.
