System
Ask whether the proposal uses a push, hydraulic, resistance or helical system and why that system matches the documented scope.
Foundation cost unit · July 2026
Foundation repair cost per pier.
A per-pier price is useful only when the pier system, engineered quantity and included work are all stated. Start with the unit—then build the project total.
No. 01 — Direct answer
One supported unit, not a complete project.
The national evidence supports a planning range for one installed hydraulic or steel pier. It does not supply the number of piers your house needs, and it does not guarantee that engineering, excavation, permits or restoration are inside the same unit price.
$1,000–$3,000 per installed pier
Claim foundation.pier · Evidence supported/medium. The per-pier unit is supported across multiple families; total scope still depends on an engineered quantity.
Use the foundation calculator only after the proposed quantity is documented. Multiplying by an assumed count creates precision without a verified scope.
No. 02 — Unit scope
What “installed pier” needs to explain.
Two identical per-pier numbers can still produce very different contracts.
Quantity
The plan should state the pier count and layout. A sales total without a measurable quantity cannot be compared per pier.
Boundaries
Engineering, mobilization, excavation, lifting, plumbing checks, permits, cleanup and finish restoration may sit outside the unit.
No. 03 — Local research
Permit valuations are context—not a regional price.
The samples below preserve method and unit, but they remain declared permit valuations from one upstream municipal family.
Local permit-valuation context
What reviewed permits report in Raleigh, NC
Separate from the national estimate above. These are declared permit valuations divided by an explicit reported quantity—not invoices, verified installed costs or a recommended price.
Quantity-scaled permit valuation · 1 helical pier
$1,773–$2,327
Scales the helical-pier permit distribution by the entered pier count; it does not change the combined national pier line.
Helical pierper reported pier
n=37- P25
- $1,773
- Median
- $1,952
- P75
- $2,327
The local sample is helical-pier specific. It is not a direct match for the calculator's combined hydraulic-or-steel-pier line. Sample window: July 27, 2024–July 27, 2026. Sources: Shovels; City of Raleigh. Read the evidence limits →
Local permit-valuation context
What reviewed permits report in Sacramento, CA
Separate from the national estimate above. These are declared permit valuations divided by an explicit reported quantity—not invoices, verified installed costs or a recommended price.
Quantity-scaled permit valuation · 1 push pier
$2,462–$2,650
Scales the push-pier permit distribution by the entered pier count; it remains separate from the national estimate.
Push pierper reported pier
n=49- P25
- $2,462
- Median
- $2,545
- P75
- $2,650
The official current-year comparison is directional because its window and record grain differ from the two-year research sample. Sample window: July 27, 2024–July 27, 2026. Sources: Shovels; City of Sacramento. Read the evidence limits →
No. 04 — Cost drivers
Questions that belong next to the pier count.
Engineering and testing
Clarify whether evaluation, design, elevations, load assumptions and follow-up documentation are included.
Access and excavation
Ask where equipment and crews must work and which landscaping, concrete or interior finishes must be opened and restored.
Lift and stabilization
Stabilizing further movement and attempting elevation recovery are not automatically the same scope.
Closeout
Permit inspections, plumbing checks, patches, cleanup and warranty documents should be assigned in writing.
No. 05 — Before comparing totals
Normalize the proposal first.
- Same pier system and model or equivalent specification
- Same measured pier count and layout
- Same engineering, access and excavation responsibility
- Same lifting or stabilization objective
- Same permits, restoration, warranty and change-order rules
No. 06 — Evidence
National range and local research sources
Source date 2026-03-17; verified 2026-07-26. Evidence class: market-data; family:
angi-homeadvisor. Primary upstream cost survey used for national, method, issue, engineer-report, permit and labor ranges.Source date 2026-07-10; verified 2026-07-26. Evidence class: market-data; family:
angi-homeadvisor. Primary upstream source for underpinning, pier counts, project labor and permit ranges.- HomeGuide. How Much Does Foundation Repair Cost? (2026)
Source date 2026-02-06; verified 2026-07-27. Evidence class: market-data; family:
homeguide. Independent proprietary cost-database comparison. Several scopes differ from the runtime claims, so overlap alone does not make a range supported. Source date 2024-11-26; verified 2026-07-27. Evidence class: market-data; family:
homeguide. Reports $10,000–$30,000+ for underpinning and $1,000–$3,000 for a single pier using a proprietary estimate database and editorial review.Source date 2026-07-14; verified 2026-07-27. Evidence class: vendor-information; family:
municipal-permit. Aggregates municipal permit records. API job_value is reported in cents and was normalized to dollars. It is a jurisdiction-reported valuation, not an invoice or verified installed cost. Raw responses and identifying fields are not retained.- City of Raleigh. Building Permits Dataset
Source date 2026-01-01; verified 2026-07-26. Evidence class: official-local; family:
city-of-raleigh. The official allowlisted audit reviewed 71 records and directionally confirmed the helical-pier permit sample. Official and aggregated records remain one municipal upstream family; no regional price factor. - City of Sacramento. Issued Building Permits — Current Year
Source date 2026-01-01; verified 2026-07-26. Evidence class: official-local; family:
city-of-sacramento. The v3 target reviewed 125 records and retained 49 push-pier observations with explicit counts. The official current-year comparison is directional; permit valuations are not used as a cost factor.
No. 06a — Questions
Foundation pier cost FAQ
How much does foundation repair cost per pier?
The reviewed national planning range is $1,000–$3,000 for one installed hydraulic or steel pier. A project total still requires a documented pier count and a clear list of included site work.
Is a helical pier priced the same as a push pier?
Not necessarily. The national line combines published hydraulic-or-steel-pier evidence, while the local research samples distinguish Raleigh helical piers from Sacramento push piers. The systems should not be treated as interchangeable without matching scope.
Can a permit valuation tell me what my contractor should charge?
No. A permit valuation is a declared administrative value, not an invoice or verified installed price. It is shown only as separate local context and never changes the national calculator result.
Who determines how many piers are needed?
A cost guide cannot determine a structural quantity. Ask for the observed condition, proposed system, layout and pier count in writing, and consider independent professional review before a major commitment.
No. 07 — Keep reading
Related foundation guides
Use the calculator for a method-based range, then use these guides to make the scope comparable.
GUIDE / 01
Underpinning Cost in the U.S.
Review U.S. foundation underpinning costs by project scope, pier system, quantity, engineering and restoration.
Read the guide →GUIDE / 02Foundation Repair Methods Explained
Learn what common foundation repair terms describe and which scope questions they leave unanswered.
Read the guide →GUIDE / 03Foundation Repair Estimate Breakdown
Turn a lump-sum proposal into comparable method, quantity, site-work and contract questions.
Read the guide →