How Much Does It Cost to Repair a Foundation?

Repairing a foundation costs $4,000 to $15,000 for most homes, and the price is built from a pier count rather than a square footage. Major structural work runs $20,000 to $40,000, and replacement runs $40,000 to $150,000. The number that matters is how many piers the engineer specifies and how deep they must go.

The Price by Scope

The bands overlap because the scopes overlap. A small pier job and a large crack repair can cost the same, and the difference is what the house actually needs.

The Unit Prices

Push piers run $1,000 to $3,000 each, helical piers $700 to $2,500, wall anchors $500 to $1,500, carbon straps $400 to $1,200, and slab lifting $3 to $12 per sq ft.

Those units are the building blocks of every quote. A contractor who cannot break the total into units is a contractor whose price cannot be verified.

The Arithmetic of a Typical Job

A 1,600 sq ft house needs seven push piers at $2,000:

7 × $2,000 = $14,000

Add engineering at $900 and a permit at $350:

$14,000 + $900 + $350 = $15,250

Add interior restoration at 10% to 25%:

$14,000 × 0.10 = $1,400 $14,000 × 0.25 = $3,500

All-in: $16,650 to $18,750. That is a typical-to-major repair and it reflects a house with one affected wall.

What Drives the Number Up

Depth is first. A pier that reaches 30 feet costs more than one that reaches 15, and the design depth is set by the soil. Access is second: a wall behind a deck costs more to reach than an open lawn.

Footing condition is third. A sound footing takes a standard bracket, and a crumbled one needs a collar or a rebuild. Interior work in a finished basement adds floor and finish repairs on top.

What Keeps It Low

A stable crack that only leaks needs injection, not piers. A drainage problem that has not yet moved the foundation needs grading, not underpinning. Catching the issue early is the cheapest repair available.

A single-wall job is also cheaper than a whole-house job, and the engineer’s report should say whether the other walls can wait. Phasing is a legitimate way to spread the cost.

Regional Variation

Labor rates, permit fees, and soil conditions vary enough that the same scope can differ by 30% or more between markets. A coastal market with deep fill and high labor sits at the top of every band.

Use a national average to sanity-check a bid, not to budget the job. The only number that matters is the one from a contractor who has measured your house.

The Restoration Line

Interior restoration is often excluded from the foundation quote, and it is usually 10% to 25% of the structural cost. Drywall, paint, trim, and flooring are separate trades.

Ask for the restoration estimate before signing, even if it comes from a different contractor. A $15,000 repair with a $4,000 restoration is a $19,000 project.

The Sequence to Get a Real Number

1. Measure the cracks and record floor elevations.
2. Pay for an engineer’s report.
3. Send the report to three contractors.
4. Require bids with pier count, depth, and exclusions.
5. Add 10% to 25% for restoration.
6. Compare all-in totals, not headline prices.

Most homeowners pay between $4,000 and $15,000, and the ones who pay more usually waited longer or had deeper soil. The repair is expensive because it is structural, and the cheapest version of it is the one done before the movement spreads.

A quote that is far below the others deserves the same scrutiny as one that is far above. Count the piers, check the design depth, and confirm whether engineering and permits are included. The difference is almost always in one of those three numbers.

A quote that is far above the others may include restoration, drainage, or a longer design depth. Ask what the extra money buys before rejecting it, because the cheapest bid is not always the smallest repair.

The final invoice should match the contract, with change orders documented and signed. Compare the pier count installed against the billed count, and keep the lift record with the invoice.

Homeowners often ask whether the price includes the engineer. Sometimes it does and sometimes it does not, and the answer changes the comparison by $400 to $1,500. Ask explicitly rather than assuming.

The same applies to the permit. A contractor who pulls the permit is taking responsibility for the inspection, and a contractor who leaves it to the homeowner is shifting the risk. That is worth knowing before the contract is signed.

Warranty terms also vary, and they do not affect the price on day one. They affect the cost of the second repair, which is the one nobody plans for, and they are worth comparing even when the totals are close.

For the detail, read foundation repair cost and how much does foundation repair cost. If the engineer is recommending replacement, foundation replacement cost sets that range.