1 estimator in this trade.
What drives the price
| Factor | Options | Price effect |
|---|---|---|
| Pier type | Steel push piers, Helical piers | Price effect: ×1 to ×1.33 |
| Wall stabilization method | Carbon fiber or steel straps, Wall anchors, Wall straightening (straps plus excavation) | Price effect: ×0.64 to ×2.46 |
Price ranges by job
| Job | Low (per unit) | Typical | High |
|---|---|---|---|
| Structural engineer inspection and report | Low $300 | Typical $500 | High $1,000 |
| Foundation crack repair (epoxy or polyurethane injection, per crack) | Low $250 | Typical $500 | High $800 |
| Foundation piers / underpinning (per pier) | Low $1,000 | Typical $2,000 | High $3,000 |
| Bowing basement wall stabilization (per linear ft of wall) | Low $75/linear ft | Typical $180/linear ft | High $400/linear ft |
| Crawl space support jacks (per jack) | Low $500 | Typical $650 | High $1,000 |
| Slab leveling by mudjacking (per sq ft) | Low $3.00/sq ft | Typical $5.50/sq ft | High $8.00/sq ft |
| Slab leveling by polyurethane foam (polyjacking, per sq ft) | Low $5.00/sq ft | Typical $15/sq ft | High $25/sq ft |
| Exterior foundation drainage (per linear ft) | Low $50/linear ft | Typical $100/linear ft | High $300/linear ft |
| Full foundation lifting and leveling | Low $10,000 | Typical $22,000 | High $50,000 |
Read more about foundation repair costs
A foundation that is actively sinking needs underpinning, where piers are driven or screwed down to stable soil, and the price scales with the number of piers. Basement walls pushed inward by soil pressure are stabilized per linear foot with carbon fiber straps, wall anchors or excavation and straightening, and a settled concrete slab is lifted per square foot by mudjacking or polyurethane foam.
What a quick estimate cannot see: soil type and drainage around the house, how far the foundation has moved, access for equipment, and local permit rules. Because the right repair depends on the cause, start with a structural engineer's inspection rather than a contractor's free quote, and get at least three written bids that list each repair, the number of piers or feet of wall, and any warranty.
The estimator on this page adds up the repairs you select from published market data, with a low/typical/high range and labor adjusted to wages in your state. It does not diagnose the cause of the damage, so use it to sanity-check a quote, not to choose a repair method.
Frequently asked questions
How much does a structural engineer foundation inspection cost?
An engineer inspection and report is sourced at $300 to $1,000, with a typical $500. It is the best first step, because the repair depends on the cause of the damage.
How much does it cost to repair a foundation crack?
Crack injection with epoxy or polyurethane is sourced at $250 to $800 per crack, typically $500. Wide or shifting cracks can point to a bigger problem that needs an engineer.
What do foundation piers cost?
Piers for underpinning are sourced at $1,000 to $3,000 each, typically $2,000. The total depends on how many piers the engineer specifies along the settled section.
Is mudjacking or polyjacking cheaper?
Mudjacking is sourced at $3 to $8 per square foot (typical $5.50) and polyjacking at $5 to $25 (typical $15). Foam costs more but is lighter and needs smaller holes.
Can I repair my foundation myself?
Sealing a small non-structural crack with an injection kit is a realistic DIY job. Piers, wall stabilization and slab lifting need heavy equipment and engineering, so hire a licensed foundation contractor.