Helical Piers Cost: Per Pier, Per Job, and What Drives Price

Quick Answer

Helical piers cost $2,000–$4,000 per pier installed, with an average around $3,000 (HomeGuide, 2026). A typical residential project requiring 5 to 10 piers runs $15,000–$30,000 total (Today's Homeowner, 2026), with depth, access, and soil conditions determining where you fall in that range.

Quick Facts

How Much Do Helical Piers Cost Per Pier Installed?

You have been told you need helical piers and the first quote came in at $3,000 per pier for eight piers — $24,000 total. That per-pier price is within the normal range of $2,000–$4,000 (HomeGuide, 2026). But you need to understand what creates the spread between the low and high end, because the difference between $2,000 and $4,000 per pier across 10 piers is $20,000.

A helical pier is a steel shaft with welded helical plates — essentially a large screw — that is rotated into the ground using hydraulic torque motors mounted on a mini-excavator or skid steer. You will see a crew of two to three workers positioning the equipment at each pier location, typically spaced 6 to 8 feet apart along the affected foundation wall. The shaft is advanced in sections, bolted together as each 5- to 7-foot segment is driven below grade. Each pier takes 30 to 90 minutes to install depending on soil resistance and depth. The torque reading at final depth confirms the bearing capacity using the formula Q_ult = K_t x T, where T is the installation torque.

The helical pier's load capacity ranges from 25,000 to 40,000 pounds per pier depending on the helix configuration and soil conditions. CHANCE helical piers, one of the most widely specified brands, carry a 30-year warranty backed by ICC-ES ESR-2794 evaluation. You should see this ESR number or equivalent on any legitimate helical pier specification. The pier is coupled to a steel bracket that transfers the building's load from the existing footing onto the pier shaft, bypassing the unstable soil that caused the settlement.

Why This Happens

Step 1 — The per-pier cost is driven primarily by depth and access. A helical pier driven to 15 feet in open soil with machine access costs less than one driven to 30 feet through tight access requiring hand-digging. The depth premium of $20–$35 per foot (industry standard) means an extra 15 feet adds $300–$525 per pier. Hand-dig access — required when decks, porches, or landscaping block equipment — adds $200–$500 per pier. These are the two biggest variables within the per-pier cost range.

Step 2 — Soil resistance determines the number of helical plates and shaft diameter. Standard residential helical piers use 2-7/8-inch or 3-1/2-inch round shafts. Heavier structures or deeper installations may require square-shaft piers with higher torque ratings. Each pier's helical plate configuration is selected to match the soil — more plates in weaker soil to distribute the load, fewer plates in denser bearing strata. Larger shafts and more plates increase material cost by $200–$600 per pier.

Step 3 — The number of piers is determined by the length of the affected wall and the building's load. Engineers calculate the dead and live load per linear foot of foundation and divide by the per-pier capacity (25,000–40,000 lbs) to determine spacing. A single-story wood-frame home on a 40-foot wall might need 6 piers; a two-story brick home on the same wall might need 8 to 10. The math is straightforward, and any contractor should be able to show you the load calculation.

What To Do Next

1. Request the engineering calculation showing pier count and spacing for free. Any legitimate helical pier contractor should provide a plan showing pier locations, expected depth, helix configuration, and the load calculation justifying the number of piers. If a contractor quotes a pier count without showing the engineering basis, get another quote. The calculation is standard practice and costs the contractor nothing to provide.

2. Require a "no depth clause" in your contract. If stable bearing soil is deeper than the initial soil boring predicted, the contractor may need to add shaft extensions at $20–$35 per foot per pier. Without a contractual cap, 10 piers each needing 10 extra feet could add $2,000–$3,500 to your total. A "no depth clause" or fixed-price contract protects you from overruns when soil conditions are uncertain. Ask for this in writing before signing.

3. Verify the pier manufacturer's warranty and ICC-ES evaluation. CHANCE helical piers carry a 30-year warranty backed by ICC-ES ESR-2794. Other reputable manufacturers (Magnum, Ram Jack, Supportworks) have equivalent certifications. Your contract should name the pier manufacturer and reference the applicable ICC-ES ESR number. If the contractor uses unbranded or uncertified piers, you have no third-party verification of load capacity, and the warranty is only as good as the installing company's longevity.

When You Don't Need Repair

If your foundation has settled uniformly — meaning the entire structure has dropped evenly with no differential movement between walls — helical piers may not be necessary. Save your money. Uniform settlement of up to 1 inch over the life of a building, with no ongoing movement, is within normal tolerances for residential construction. Normal settling completes within approximately 10 years of construction. The key measurement is differential settlement: the difference in elevation between two points on the foundation. If a floor-level survey shows less than 1/2 inch of variation across 20 feet and the variation is not increasing, the foundation is performing within acceptable limits.

Related Issues to Check

• Push piers as an alternative in dense bearing soil. Push piers use the building's weight to hydraulically drive steel segments to refusal rather than screwing helical plates into the ground, and they reach ultimate capacities of 60,000–68,000 lbs per pier — roughly double the capacity of standard helical piers — making them preferable when stable bearing soil is deep and load requirements are high.

• Concrete mudjacking or foam lifting for slab sections between piers. Helical piers stabilize the perimeter foundation but do not lift the interior slab, and settled interior sections may need mudjacking ($4–$9 per square foot, Angi, Dec 2025) or polyurethane foam injection ($8–$25 per square foot) after pier installation to level the floor.

• Gutter and drainage correction to prevent recurrence. Piers stabilize the foundation against further movement but do not address the moisture conditions that caused the original settlement, and without correcting grading to the IRC-required 6-inch drop in 10 feet (IRC R401.3), soil conditions may continue to stress the foundation between pier points.

Frequently Asked Questions

Are helical piers or push piers better? Neither is universally better — the choice depends on soil conditions and building weight. Helical piers are installed by torque and work well in a wide range of soils, including softer soils where push piers lack the building weight to drive to depth. Push piers achieve higher ultimate capacities (60,000–68,000 lbs versus 25,000–40,000 lbs for helical) and are preferred for heavy structures. A structural engineer can recommend the appropriate type based on your soil report and structural loads.

How many piers does my house need? Pier count depends on the length of affected foundation wall, the building load, and the per-pier capacity. A typical single-story home with one affected wall needs 5 to 8 piers spaced 6 to 8 feet apart. Two affected walls double the count. The engineer divides the total supported load by the per-pier capacity (25,000–40,000 lbs) to determine spacing. Request this calculation from your contractor.

What determines how deep the piers go? Piers are driven until the installation torque confirms adequate bearing capacity using the formula Q_ult = K_t x T. In practice, this means the pier is advanced until the torque motor measures sufficient resistance. In DFW's Eagle Ford Shale, stable bearing may be at 15 to 20 feet; in Houston's Beaumont Clay, it may be 18 to 28+ feet (TxDOT). A geotechnical soil boring ($1,000–$5,000) before installation provides the best depth prediction.

Do helical piers come with a warranty? Yes, reputable manufacturers provide 25- to 30-year warranties. CHANCE helical piers carry a 30-year warranty evaluated under ICC-ES ESR-2794. The manufacturer's warranty covers the pier hardware. The installing contractor typically provides a separate warranty on workmanship, ranging from 10 years to lifetime depending on the company. Get both warranties in writing.

Last reviewed: March 2026 · Sources verified against current industry data

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