Pier & Beam Foundation Repair
Pier & Beam Foundation Repair San Antonio, TX
Restore raised foundations with crawl spaces, common in Alamo Heights, Monte Vista, and older central San Antonio neighborhoods.
Pier and beam means a raised foundation with a crawl space underneath. Your floor sits on wooden joists supported by concrete piers. Thousands of pre-1960 San Antonio homes were built this way, and many still run on original lumber that's now failing.
Signs Your Pier & Beam Needs Work
- Sagging or bouncy floors in the center of rooms
- Musty smell or standing water in the crawl space
- Rotten or cracked wooden beams and joists
- Shifting or cracked concrete pier blocks
- Gaps between floor and baseboards
- Floors slope toward the middle of the house or the street
Where Pier & Beam Is Most Common
Alamo Heights, Monte Vista, Terrell Hills, and Olmos Park have some of San Antonio's oldest homes, many still on original pier-and-beam systems. Mature oak trees pull moisture unevenly from clay soil, causing differential settlement that slab homes don't always show the same way.
Central San Antonio neighborhoods built before 1950 often have crawl spaces too shallow for modern access. We relevel floors, replace rotten lumber, and add steel shims where piers have shifted. Historic district homes benefit from targeted crawl space work instead of wholesale exterior excavation.
Pier and beam repair cost in San Antonio
Pier-and-beam is often less than full slab piering when caught before structural rot spreads. Lumber scope and moisture work drive the quote.
| Scope | Typical range |
|---|---|
| Pier adjustment & shimming | $2,500 – $5,000 |
| Localized beam / joist replacement | $5,000 – $9,000 |
| Full crawl space relevel + lumber | $8,000 – $15,000 |
| Moisture remediation (barrier, vents, drainage) | $1,500 – $4,000 |
| San Antonio pier-and-beam average | ~$9,000 |
Ranges reflect San Antonio market conditions. Final price depends on inspection findings. We quote in writing before work begins.
Pier & Beam vs. Slab Repair Cost
Slab stabilization in San Antonio averages about $12,663: piers driven around the full perimeter. Pier-and-beam jobs average closer to $9,000 because we access everything from underneath. Re-shimming settled piers and replacing a few joists costs far less than lifting an entire slab, but wait too long and full lumber replacement closes the gap.
We inspect the crawl space before quoting. Moisture damage, termite history, and the number of failing beams matter more than square footage alone.
Our Pier & Beam Repair Process
We inspect the crawl space first: moisture, ventilation, beam condition, and pier alignment. Then we replace damaged beams, adjust piers, and install new support where needed. Moisture barriers and improved ventilation prevent the same damage from returning.
Every job ends with a floor-level check and written report. Most pier-and-beam repairs in San Antonio take 2–5 days depending on lumber replacement scope. You can stay in the home; work happens below the floor, not inside your living space.
Crawl Space Moisture: The Hidden Enemy
Texas humidity plus poor drainage turns crawl spaces into rot factories. We address the root cause (grading, French drains, vapor barriers, and added ventilation), not just the symptoms. A dry crawl space adds years to your foundation's life and cuts future repair bills.
Call (830) 244-0222 for a free crawl space inspection. Same-day appointments available across San Antonio.
San Antonio Slab Repair · 454 Soledad Street, 3rd Floor, San Antonio, TX 78205 · (830) 244-0222
Questions & answers
Pier & Beam Foundation Repair
Don't let a small crack become a $15,000 problem.
Foundation issues get worse every month. Our free inspection gives you a clear diagnosis and an honest quote, with no pressure.