How a pier-and-beam house is built
In a pier-and-beam house, the floor framing rests on wood beams, and the beams rest on piers: concrete blocks, poured concrete columns or masonry pillars, often with wood shims on top to set the height. A perimeter wall or skirting encloses a crawl space underneath. This design is common in older homes across Texas, Louisiana, the Southeast and many other regions, and in newer homes on sloped or flood-prone lots.
Because the house sits on individual supports, it can be adjusted. That is the good news. The bad news is that each support can move on its own: blocks settle into soft soil, wood shims compress or rot, beams sag between supports, and moisture in the crawl space weakens sills and joists.
Signs your floors need leveling
- Floors that slope, dip in the middle of a room or feel bouncy
- Doors that swing open or closed on their own, or no longer latch
- Gaps between baseboards and the floor
- Cracks in drywall or plaster above doors and windows
- Cabinets or countertops pulling away from the wall
- In the crawl space: tilted or sunken piers, crushed or missing shims, damp soil, rotted wood
What leveling involves
- Measure. The contractor maps floor elevations room by room to find the high and low points.
- Inspect the crawl space. They check each pier, shim, beam and sill, and look for moisture, rot and insect damage.
- Lift and re-shim. Jacks raise low areas gradually. Crushed wood shims are replaced, often with steel shims that do not compress.
- Add or replace supports. New concrete piers or adjustable steel posts go where supports are too far apart or have failed.
- Repair wood. Rotted sills, sagging beams and damaged joists are replaced or reinforced (sistered).
- Address moisture. Ventilation, drainage or a vapor barrier keep the crawl space drier so wood lasts.
What pier-and-beam leveling costs
| Work | Published range | Source |
|---|---|---|
| Pier and beam foundation repair, overall | $800 – $25,000 | Angi |
| Reshimming | $1,200 – $4,000 | Angi |
| Adding new piers, each | $800 – $4,000 | Angi |
Published figures for orientation only, not quotes. The contractor you are connected with sets the price after an inspection.
The wide range reflects how different these jobs are. A simple reshim of a few low spots is a small job; replacing a rotted beam line and adding many new piers is a large one. Wood damage found once the crawl space is opened is the most common reason prices rise, so ask how the contractor prices surprises.
How often does a pier-and-beam house need leveling?
There is no fixed schedule. On stable soil with a dry crawl space, a well-done leveling can last many years. On expansive clay, like much of Dallas, San Antonio and Austin, supports can shift again with wet and dry seasons, and some homes need a minor adjustment every several years. Steel shims and adjustable posts make those adjustments faster and cheaper. Ask whether the warranty includes re-adjustments and for how long.
Crawl space moisture and wood damage
Most pier-and-beam problems trace back to water. Rain that runs toward the house instead of away, gutters that overflow, a crawl space with no vapor barrier or blocked vents, and plumbing leaks all raise moisture under the floor. Wet soil softens under pier footings, wood shims swell and rot, and sills and joists near the perimeter decay first. Termites and other wood-destroying insects also prefer damp wood.
When a contractor quotes leveling, ask what they saw about moisture. A repair that lifts the floor but leaves the crawl space wet will need doing again. Depending on the house, moisture control can mean regrading, extending downspouts, repairing vents, adding a ground vapor barrier or, in some climates, encapsulating the crawl space. Some foundation contractors do this work themselves; others refer it out.
Can you level a pier-and-beam house yourself?
Small adjustments with the right jacks look simple, but lifting a house changes loads on beams, walls, plumbing and doors. Lifting too fast or too far cracks plaster, tile and drywall and can damage pipes. Temporary supports must be safe while you work under the house. For anything more than a single loose shim, a professional with the right equipment, a written plan and insurance is the safer choice.
Pier and beam vs. slab repair
Minor pier-and-beam leveling is often much cheaper than piering a slab, because most of the work happens in the crawl space without breaking concrete. Major pier-and-beam work, with new beams and many new piers, can cost as much as slab piering. See foundation repair cost in Texas and pier types compared for slab comparisons.
Leveling an older house: set realistic goals
A house that has been out of level for decades has adapted to its shape: doors were trimmed, cabinets shimmed, plaster cracked and was patched. Forcing it perfectly flat in one day can crack walls, jam doors that used to work and stress plumbing. Experienced contractors lift gradually and aim for a practical, stable result rather than a perfect number. Talk about the target before work starts and ask how they will protect finishes.
Questions to ask the contractor
- Will you give me the floor elevations before and after?
- What type of shims and supports will you use, and why?
- How many new piers, and how deep are their footings?
- How will you handle rotted or damaged wood if you find it?
- What do you recommend for crawl space moisture?
- Does the warranty include future adjustments?
Keeping the house level
Most pier-and-beam problems come back when the crawl space stays wet. Keep gutters and downspouts working, slope soil away from the house, make sure vents or a vapor barrier are in place as your contractor recommends, and look in the crawl space after heavy storms. Catching a crushed shim early is far cheaper than replacing a rotted beam. A short look with a flashlight once or twice a year, and after any plumbing leak, is enough for most homeowners to spot trouble early.