Helical Pier Installation Cost (2026)
Helical piers are screw-shaped steel shafts driven into the ground beneath a settling or failing foundation to transfer the building’s load down to competent soil or bedrock. They are the most common modern solution for residential foundation underpinning, particularly in expansive clay, soft fill, or high-water-table conditions. Here is what the work actually costs in 2026.
Per-Pier Cost Breakdown
Most contractors price helical pier work per pier installed, with the total job cost driven by how many piers your foundation needs and how deep each must be driven.
| Pier Configuration | Typical Price Per Pier | Best For |
|---|---|---|
| 2 7/8 in. shaft, single helix | $1,400-$1,900 | Light loads, decks, additions |
| 2 7/8 in. shaft, double helix | $1,700-$2,300 | Standard residential underpinning |
| 3 1/2 in. shaft, double helix | $2,000-$2,800 | Heavier two-story homes |
| 3 1/2 in. shaft, triple helix | $2,500-$3,200 | Heavy commercial, soft soils |
These prices include shaft, helix plates, bracket, installation labor, and the hydraulic torque equipment used to verify capacity. Excavation to expose footings is typically extra ($200-$500 per pier).
Total Project Cost by Home Size
A typical residential foundation needs piers spaced 6 to 8 feet apart along the affected wall or section.
- Settling corner or small wall section (3-5 piers): $5,000-$12,000
- One full side of a single-story home (8-12 piers): $12,000-$30,000
- Two-story home with multiple affected walls (15-25 piers): $35,000-$60,000
- Whole-perimeter stabilization on a large home (25-40 piers): $50,000-$100,000
Add 10 to 20 percent for engineering, permits, soil testing, and post-installation hydraulic lift (the process of raising a settled foundation back to level after the piers are installed).
What Drives the Final Price
- Soil conditions. Hard clay or rocky soil requires deeper drives or larger equipment, raising per-pier cost. Soft fill or expansive clay may require longer piers to reach competent strata.
- Depth to load-bearing strata. Most piers terminate at 15 to 30 feet, but unusual sites can require 40 to 70 feet of shaft, adding $200 to $400 per added 7-foot extension.
- Access. Tight side yards, basement interiors, or homes with limited equipment access can require hand-driven or low-headroom equipment, which is slower and more expensive.
- Number of helices. Double and triple helix configurations cost more but achieve higher capacity at shallower depths, often netting cheaper overall.
- Engineering and permits. A stamped engineering report and permit add $1,500-$4,000 to most projects.
- Lift vs stabilization. Stopping further settlement is cheaper than lifting a foundation back to its original elevation. Lift work typically adds 15-25 percent to base pier cost.
Engineering Verification
Helical piers are unique among foundation repairs because installation torque correlates directly with load capacity. A licensed installer records the final installation torque for each pier and provides a certificate showing the verified capacity meets the design load.
Ask for these documents before final payment:
- Installation torque log per pier
- Capacity certificate signed by a Professional Engineer
- ICC-ES report confirming the pier system is code-listed
When Helical Piers Are the Wrong Tool
Helical piers solve vertical settlement. They do not solve every foundation problem:
- Horizontal wall failure (bowing basement walls) requires wall anchors or carbon fiber straps, not piers.
- Slabjacking-grade settlement (a thin slab dropped 1-2 inches) is usually cheaper with polyurethane foam injection ($500-$1,500 total) than piers.
- Active expansive soil heave requires soil treatment or a structural redesign, not just underpinning.
For a broader comparison of foundation repair methods, see our foundation repair cost guide.
How to Compare Bids
- Require at least two bids from foundation contractors who self-perform pier installation, not subcontract it.
- Verify ICC-ES listing. The pier hardware should reference an ICC-ES Acceptance Criteria AC358 report.
- Confirm the engineer. A Professional Engineer should design the pier layout and stamp the report. If the contractor cannot name the engineer, walk away.
- Compare warranties. A 25-year transferable warranty on the pier system is standard. Lifetime hardware warranties are common with major manufacturers (Earth Contact Products, Magnum Piering, Ram Jack).
- Ask about lift. If your foundation has settled visibly, clarify whether the bid includes lift to original elevation or only stabilization at current position.
Find licensed foundation repair contractors in your area to get itemized bids and compare pier configurations.
Sources
Frequently Asked Questions
How much do helical piers cost per pier?
Helical pier installation runs $1,400 to $3,000 per pier in 2026, fully installed. The wide range reflects shaft diameter (2 7/8 inch vs 3 1/2 inch), helix plate count, soil conditions, and the depth required to reach load-bearing strata.
What does a full helical pier foundation repair cost?
Most residential helical pier foundation stabilization projects require 8 to 12 piers and cost $12,000 to $30,000 total. Larger homes or severe settlement may require 15 to 25 piers, pushing total cost to $35,000 to $60,000. Engineering, permits, and post-installation lift add 10 to 20 percent.
Are helical piers cheaper than push piers?
Helical piers and push piers (resistance piers) are comparable in cost, both running $1,400 to $3,000 per pier installed. Helical piers are typically preferred for lighter loads, expansive soils, and new construction. Push piers are typically preferred for heavier structures because they use the building's own weight as the reaction force.
How long do helical piers last?
Galvanized steel helical piers in normal soil conditions are engineered for 75 to 150 years of service life. ICC-ES certified piers come with manufacturer warranties typically ranging from 25 years on the labor to lifetime on the pier hardware. Corrosive or acidic soils can shorten lifespan, which is why a soil report is recommended before installation.
Do helical pier installs require permits?
Yes, in most U.S. jurisdictions. Foundation underpinning is a structural modification and typically requires a permit, an engineering letter or stamped drawing, and inspection at multiple phases. Permit fees usually run $200 to $800. Reputable contractors include permits in the bid.
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