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Commercial · San Antonio, TX
Concrete Piers & Caissons in San Antonio
When surface soils can’t support the loads from a structure, you go deeper. Drilled piers and caissons extend through unstable soil down to stable strata — limestone, dense clay, or rock — and transfer building loads directly to bearing..
Concrete Piers & Caissons San Antonio
When surface soils can’t support the loads from a structure, you go deeper. Drilled piers and caissons extend through unstable soil down to stable strata — limestone, dense clay, or rock — and transfer building loads directly to bearing.
Pier and caisson projects we install
Drilled foundations come in a lot of forms.
Common applications:
- Commercial building foundations on expansive soils
- Metal building column piers
- Signage and monument footings
- Cantilevered structures (canopies, marquees)
- Equipment foundations and process pads
- Underpinning for foundation repair
- Retaining wall anchor piers
- Cell tower and antenna foundations
How drilled piers work in San Antonio's soils
Much of San Antonio sits on expansive clay overlying limestone. Drilled piers extend through the active clay zone down to limestone or stable substratum, transferring loads to soil that doesn’t move.
Pier diameters and depths
Pier diameters range from 12 inches up to 48 inches or more depending on load. Depths in San Antonio typically run 15 to 30 feet for most commercial work.
Reinforcement and concrete placement
Rebar cages are fabricated to engineer spec and lowered into the drilled shaft. Concrete is placed via tremie pipe or pump for deeper or wet shafts to maintain consolidation.
Free pier and caisson bids in San Antonio
Send us your geotechnical report and structural plans. Call 210-405-7176 for a detailed bid.
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FAQs
Concrete Piers & Caissons FAQs
When do you need drilled piers instead of a slab foundation?
Drilled piers are typically required when surface soils have inadequate bearing capacity, when expansive clay extends deeper than a standard foundation can mitigate, or when concentrated loads require deep bearing.
How deep are typical drilled piers in San Antonio?
Most commercial piers in San Antonio run 15 to 30 feet deep, reaching limestone or stable clay below the active moisture zone.
How long does pier installation take?
A typical commercial pier installation runs 4 to 10 piers per day. A full pier program for a mid-size commercial building usually takes 1 to 3 weeks.
Do you do underpinning?
Yes — we install drilled piers as part of structural underpinning to stabilize foundations that have settled or are showing distress.
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