Steel vs Concrete Piers
The pier method is the biggest decision on a foundation estimate. Here is how the common types compare on New Braunfels clay and Hill Country limestone.
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Pressed concrete piers
Precast concrete cylinders are stacked and pressed into the ground with a hydraulic jack, using the weight of the house as resistance, until they will not go any deeper. They are the most common repair in Central Texas.
Cost: roughly $400 to $800 per pier. Strengths: proven, fast to install, cost effective. Limits: depth depends on where the soil stops them, which can be shallower than the active clay zone on deep east-side clay.
Steel push piers
Sections of steel pipe are driven down, again using the house as resistance, often to bedrock or very dense soil. They can go much deeper than concrete cylinders.
Cost: roughly $1,200 to $3,000 per pier. Strengths: depth, strength, consistency. A good fit where clay is deep or the house is heavy. Limits: higher cost, and the steel needs proper coating for long life.
Helical piers
Steel shafts with screw-shaped plates are turned into the ground with a hydraulic motor. Because they do not need the house's weight to install, they work well for lighter structures, additions and porches, and for new construction. Prices are generally in the steel pier range.
Drilled concrete piers
A hole is drilled, reinforced with steel and filled with poured concrete. Engineers sometimes specify them, especially in rock. They take longer because the concrete has to cure, and they often cost more than pressed piers.
Which one fits your house
- East of I-35 on deep clay: steel piers are often worth the extra cost because they reach below the moving zone.
- West side, shallow limestone: pressed concrete piers often hit refusal on rock quickly and perform well.
- Additions, porches, light structures: helical piers.
- When an engineer has written a repair plan: follow the plan.
Questions to ask before you sign
- How deep do you expect the piers to go, and do you record the depth of each one?
- Is the warranty for the life of the structure, and does it transfer to the next owner?
- Does the warranty cover adjustments if the house moves again?
- Will you show me the pier locations on a floor plan?
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Questions homeowners ask
Are steel piers always better?
Not always. They are deeper and stronger, but on shallow limestone, pressed concrete may reach solid rock at a fraction of the cost. The right answer depends on your soil.
How long do piers last?
Properly installed concrete and coated steel piers are expected to last for decades. The warranty terms tell you how confident the installer is.
Is mudjacking or foam a substitute for piers?
No. Mudjacking and polyurethane foam raise and fill under slab sections, which is good for driveways, patios and small voids. They do not support a settled foundation beam on moving clay.
Can a contractor mix pier types on one house?
Yes. Some jobs use steel where clay is deepest and concrete elsewhere. That should be shown clearly on the estimate.
Service area
Comal, Guadalupe and Hays County homes, roughly a 35 mile ring around New Braunfels.
Ask which method fits your soil
Call (830) 626-9042 Monday through Saturday, 7am to 7pm. A local contractor measures first and puts the number in writing.
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