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Foundation repair
Cracks, sticking doors, sloping floors — know the warning signs, the repair methods, and what they cost, then get a vetted local pro out to look.
Signs your foundation needs repair
- Stair-step cracks in brick or block walls — the signature of differential settlement.
- Doors and windows that stick or stop latching, with no humidity explanation.
- Sloping or bouncy floors, and gaps opening between walls, ceilings, and frames.
- Horizontal cracks in a basement wall — the most serious sign: soil pressure bowing the wall inward. Get it assessed promptly.
- Water in the basement or crawl space after rain — drainage failure and foundation movement feed each other; see water in the basement and basement waterproofing.
Not every crack is structural — hairline vertical cracks in poured concrete are usually shrinkage. But foundation problems only get cheaper the earlier they're caught, and assessments from local pros are typically free.
Estimate your foundation repair cost
Pick the repair type and how widespread the problem is for a ballpark range:
Estimated cost range
$—
A national-ballpark estimate, not a quote. Your price depends on soil, access, the number of piers, and local labor — always get an in-person assessment.
Foundation repair cost by type
| Repair | Typical cost | When it’s used |
|---|---|---|
| Crack repair / sealing | $300 – $900 | Minor, non-structural cracks; sealing against water. |
| Slab leveling (mudjacking / foam) | $600 – $1,600 | A settled slab lifted back with grout or polyurethane foam. |
| Pier & beam repair | $1,000 – $3,500 | Adjusting or shimming a raised pier-and-beam foundation. |
| Underpinning / piering | $1,000 – $3,000 per pier | Steel or concrete piers driven to stable soil; jobs often run 5–10 piers. |
| Major / full repair | $10,000+ | Extensive settlement, multiple sides, or structural rebuild. |
Compiled from published industry cost guides (Angi, HomeAdvisor, Fixr). Updated 2026-07-22. Estimates only — not a quote.
What drives the price
- Repair method — sealing a crack vs. driving piers is the biggest single factor.
- Extent — one corner vs. a whole side or the entire perimeter.
- Soil & depth — expansive clay or piers that must reach deep, stable soil cost more.
- Access — landscaping, decks, and tight crawl spaces add labor.
- Water intrusion — drainage, waterproofing, or a sump may be needed to stop it recurring.
How to budget for foundation repair
- Identify the likely problem. Note the symptoms — hairline cracks, a sticking door, a sloping floor, or stair-step cracks in brick — to narrow down whether you’re looking at minor sealing or structural piering.
- Estimate a ballpark range. Use the calculator above to translate the repair type and how widespread it is into a rough cost range, so you know roughly what to budget before anyone visits.
- Get at least two in-person assessments. Foundation pricing hinges on soil and access, which only an on-site inspection reveals. Compare written quotes from two or three local pros, and be wary of anyone who quotes sight-unseen.
- Check insurance and financing. Standard homeowners insurance rarely covers settlement or gradual foundation movement, so plan to pay out of pocket or finance it. Ask each pro about a transferable warranty, which protects resale value.
Frequently asked questions
- The classic warning signs: stair-step cracks in brick or block, doors and windows that suddenly stick or won’t latch, sloping or bouncy floors, gaps opening between walls and ceilings or around window frames, and cracks wider than about a quarter inch. A horizontal crack in a basement wall is the most serious sign — it suggests soil pressure bowing the wall. Any of these warrants a professional assessment; hairline vertical cracks in poured concrete are usually just shrinkage.
- Most homeowners spend somewhere in the low thousands, but the range is wide: minor crack sealing can run a few hundred dollars, while extensive underpinning with multiple piers reaches well into five figures. The price is driven by the repair method, how widespread the problem is, soil conditions, and access — which is why an in-person assessment matters.
- As rough national ranges: crack repair and sealing $300–$900; slab leveling (mudjacking or foam) $600–$1,600; pier-and-beam adjustments $1,000–$3,500; and underpinning with piers roughly $1,000–$3,000 per pier, with typical jobs using several piers. Major settlement affecting multiple sides of the home can exceed $10,000.
- Usually not. Standard policies exclude foundation damage from settling, soil movement, and gradual issues, since these are considered maintenance rather than sudden accidental events. Coverage may apply if the damage results from a specifically covered peril (for example, a plumbing leak that undermined the foundation). Check your policy, and assume you’ll pay out of pocket unless a covered cause is clearly involved.
- It gives a planning-stage ballpark, not a quote. Real foundation pricing depends on soil type, the depth piers must reach, access around the home, and local labor rates — none of which a calculator can see. Use the range to set expectations, then get written estimates from local pros for an accurate number.
- It can be. Foundation problems tend to worsen over time, and the water intrusion that often accompanies them — through cracks and a failing perimeter — can lead to mold and further structural damage. Catching it early usually means a smaller, cheaper fix than waiting until doors won’t close and floors visibly slope.