Comparisons
Helical piers vs push piers: which one fits your house
Helical piers vs push piers comes down to weight.
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Written by HyreFoundation Research Desk Primary-source research and fact checking
The short answer
Helical piers vs push piers comes down to weight. Push piers are steel tubes driven down using the weight of the house as the jack, so they suit heavy structures with deep, firm soil.
Helical piers are screwed in by machine torque, so they suit light structures, uplift and places where the house is too light to push a pier deep enough. An engineer should pick between them.
Key takeaways
A light structure cannot drive them as deep as a heavy one.
, so they suit porches, additions, light slabs and new loads.
The push pier evaluation report covers axial compression only.
Drainage and soil moisture still decide whether the movement comes back.
Helical vs push piers, side by side
| Question | Helical piers | Push piers |
|---|---|
| How it goes in | Helical: a steel shaft with screw plates, rotated into the soil by a hydraulic drive. Push: steel tube sections pressed down with a ram that reacts against the footing and the weight of the house. |
| How capacity is checked | Helical: install torque is correlated to capacity under ICC-ES AC358. Push: the pier is driven to refusal; the pressure at refusal is the field test. |
| Loads it handles | Helical: compression and tension (uplift). Push: axial compression only, per ESR-4891. |
| Depends on house weight | Helical: no. Push: yes, which limits depth under light structures. |
| Soil it suits | Helical: soils the plates can be screwed into; rock and dense cobbles stop them. Push: sites with a firm bearing layer at a depth the house weight can reach. |
| Typical use | Helical: porches, stoops, additions, light one-story slabs, new construction. Push: heavier homes settling on soft upper soil over firm ground. |
When helical piers win
A porch, stoop, garage or one-story slab may not weigh enough to drive a push pier to firm soil.
Expansive clay that heaves, or a load that pulls up, needs a pier that works in tension.
Helicals can be load-tested by torque before anything rests on them.
Small drive heads fit where a heavier rig will not.
When push piers win
and firm bearing soil sits below a soft upper layer.
that would stop or damage helix plates.
at each pier rather than a torque correlation.
with no uplift or tension in play.
What moves the price
We publish no figures. These are the things that make one system cost more than the other on a given house.
| Factor | Why it changes the number |
|---|---|
| Depth to firm soil | Both are priced partly by length. Deep bearing soil adds steel to either system. |
| Number of piers | Spacing comes from the engineer’s load calculation. A light house on helicals and a heavy house on push piers can need very different counts. |
| Access and digging | Each pier needs an excavation at the footing. Patios, driveways and plantings in the way add work. |
| Engineering and testing | Sealed design, permit and field logs of torque or drive pressure. Ask whether these are included. |
| Drainage correction | Often quoted separately, and often what decides whether you pay once. |
HyreFoundation publishes no prices for this work: we hold no sourced, dated quotes. The factors above explain why two quotes differ. See how foundation pricing works.
The short version.
If the house is heavy and the trouble is settlement, push piers are a common answer. If it is light, needs uplift resistance or sits on soil a pushed tube cannot reach, helicals usually fit better. Let a structural engineer you hire choose, from measured floor elevations, before any contractor bids.
What to ask before you sign
The full checklist is on choosing a foundation contractor.
Where this goes wrong
The right system depends on the weight of the structure and the soil, not on which product a company installs.
The drive pressure or torque record is the only proof each pier reached its target. Get it in writing.
Piers hold the house up. They do nothing about water that keeps soaking or drying the soil.
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Questions
Are helical piers better than push piers?
Can push piers resist uplift from expansive soil?
Why does house weight matter for push piers?
How is a helical pier’s capacity known?
Do I need an engineer to choose?
Written and audited by
HyreFoundation Research Desk
Primary-source research and fact checking
We read the model building code, the federal soil and moisture guidance and the insurer position ourselves, and we publish each figure with the document it came from and the date we retrieved it.
Where a number cannot be traced to a primary source, we say so instead of printing it. HyreFoundation does not inspect, engineer or repair foundations. Authorship is organizational: this desk, not a named persona.
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How this desk works
- Primary sources only. Code statements come from the International Residential Code, Chapter 4, as the model code. Soil statements come from USDA and USGS. Insurance statements come from the policy language and the Insurance Information Institute. We open the source rather than cite a blog that cites it.
- The code is a model, and adoption is local. Your jurisdiction adopts an edition and amends it, and foundation chapters are amended more than most because frost depth and soil are local facts. Every code figure says so.
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Information on this page is general and varies with soil, climate, foundation type, building code, insurance policy and circumstance.
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