What foundation repair costs in 2026
The honest answer has a wide band, because “foundation repair” covers a $400 afternoon and a $40,000 excavation. Sorted by how often each actually happens:
- Most common outcome — a crack sealed for $350 – $900. Many homeowners who arrive here worried leave with this bill.
- Common structural job — piering one side of the house, $10,000 – $30,000.
- National average across all jobs — about $4,850, with the middle 60% of invoices between $2,300 and $7,100.
Which one applies to you is decided by what the crack is telling you, not by the size of the crack. A hairline vertical line can be nothing; a quarter-inch horizontal crack in a block wall is a structural problem regardless of how tidy it looks.
Foundation repair cost by repair type
These are the installed unit prices contractors bid from. Multiply the unit price by the quantity your job needs — pier count is the variable that moves five-figure bids the most.
| Line item | Typical range | Unit | What drives it |
|---|---|---|---|
| Epoxy / polyurethane crack injection | $350 – $900 | per crack | Crack width, wall access |
| Carbon fiber straps | $400 – $800 | per strap | Wall height, bow severity |
| Wall anchors / braces | $700 – $1,900 | per anchor | Yard access, soil quality |
| Steel push piers | $1,250 – $2,400 | per pier | Depth to load-bearing soil |
| Helical piers | $1,400 – $3,100 | per pier | Soil type, torque required |
| Slab jacking / polyurethane foam | $700 – $2,100 | per section | Void size, lift height |
| Interior drain tile + sump | $65 – $130 | per lin. ft | Slab thickness, discharge run |
| Exterior waterproof membrane | $95 – $210 | per lin. ft | Excavation depth, landscaping |
| Crawl space encapsulation | $3,200 – $9,500 | per project | Square footage, dehumidifier |
| Structural engineer’s report | $450 – $600 | per visit | Independent of any contractor |
Source: Compiled from published 2025–2026 contractor cost datasets and rate sheets, normalized to installed prices including labor. Metro-market labor runs 15–25% above these figures. · Last reviewed July 30, 2026 · Reference data · How we compile these figures
Cost by whole job, not per unit
Unit prices are how contractors quote; whole-job totals are how homeowners budget. This is what the complete bill typically looks like, engineer and permit included where they apply.
| Job | Typical range | Scope | What’s typical |
|---|---|---|---|
| Seal a non-structural crack | $350 – $900 | complete job | One crack, injected in a few hours |
| Stabilize a bowing wall (carbon fiber) | $2,500 – $7,000 | per wall | Bow under 2 in., 5–9 straps |
| Stabilize a bowing wall (anchors) | $4,000 – $15,000 | per wall | Larger movement, exterior access needed |
| Underpin a settled corner | $5,000 – $14,000 | per corner | 4–6 piers plus engineer and permit |
| Underpin one side of a house | $10,000 – $30,000 | per side | 8–12 piers, the most common structural job |
| Full perimeter underpinning | $25,000 – $60,000 | whole house | 20+ piers, severe differential settlement |
| Level a sunken slab section | $700 – $2,100 | per section | Slab jacking, done in hours |
| Waterproof a leaking basement | $2,300 – $7,500 | per basement | Interior drain tile plus sump pump |
Source: Whole-job totals include the repair, structural engineer’s report and permit where those apply. Concrete and landscaping restoration are excluded — confirm whether each bid includes them. · Last reviewed July 30, 2026 · Reference data · How we compile these figures
What actually drives the price
Pier count and spacing
Piers go in 6 – 8 feet apart along the affected footing. That spacing choice alone can swing a bid by $8,000 on the same house. Neither spacing is automatically wrong — but a structural engineer, not a salesperson, should decide which your soil requires.
Access
Piering under a slab through a finished basement costs more than working from open ground outside. Landscaping, decks, driveways and tight lot lines all add labor. Interior work also adds dust containment and concrete cutting.
Soil
Expansive clay (much of Texas, Oklahoma and the Gulf states) moves seasonally and drives more piering work — though competitive local markets keep per-pier prices reasonable. Deep frost lines in northern states raise excavation costs. Bedrock close to the surface shortens piers and lowers the bill.
What’s in scope
The most expensive line item is the one that is missing. Engineer’s report ($450 – $600), permit ($75 – $400), concrete restoration, landscaping repair and interior finish work are variously included or excluded. Normalize all three bids for scope before comparing totals.
Estimate your own job
The foundation repair cost calculator takes your problem type, method, severity, home size and region and returns an itemized range in about two minutes — free, no email. It uses exactly the unit prices published in the table above.
How to compare foundation repair quotes
Bids for identical work routinely differ by 30–50%. Four questions close most of that gap:
- How many piers, and at what spacing? Get the unit price and the count separately, never a lump sum.
- Is the engineer’s report included, and is it independent? A report written by the company selling the repair is not a second opinion.
- Who pulls the permit? If nobody does, that is a warning about the whole bid.
- What gets restored? Concrete, landscaping, drywall — in or out, in writing.
A bid far below the others is usually missing something rather than winning on efficiency. Ask what.
When you don’t need to spend anything
Say this part out loud to yourself before signing: a hairline vertical crack under 1/8 inch in poured concrete, dry and not growing, needs nothing. Mark both ends with a pencil and today’s date, check it in three months, and get on with your life. That is free, and it tells you more than a free inspection will.
Likewise, a basement that is damp only after heavy rain is usually a gutter and grading problem — $100 – $600 of downspout extensions and regrading — long before it is a $9,000 drainage system. Read signs of foundation problems and what normal settling cracks look like before you price anything.
All foundation and basement cost guides
- Foundation crack repair cost — prices by crack type and width.
- Basement waterproofing cost — interior vs exterior, per linear foot.
- Basement repair cost — cracks, leaks and bowing walls.
- Crawl space encapsulation cost — full encapsulation vs vapor barrier.
- Sump pump installation cost — new install, replacement, battery backup.
- Foundation repair cost calculator — your itemized estimate.