How much does foundation repair cost?

Foundation repair ranges from $2,035 to $8,134 depending on the problem, with most projects around $5,000. Minor crack injection runs $200–$500–$800 per crack; structural underpinning runs $9,500–$12,000–$15,000.

Does homeowners insurance cover foundation repair?

Usually not for settlement, shifting soil or poor drainage — those are treated as maintenance or pre-existing. Sudden, accidental events (a burst pipe washing out soil, a vehicle impact) are typically covered. Get the cause documented in writing before filing.

How do I know if my foundation needs repair?

Warning signs include stair-step brick cracks, doors and windows that stick, sloping floors, and cracks wider than a hairline. A structural engineer inspection costs $200–$400 and is the standard first step before committing to repairs.

Crack injection or underpinning?

It depends on whether water is moving or the structure is moving. A stable, non-structural crack is injected for $200–$500–$800 per crack. Ongoing settlement needs piers — underpinning runs $9,500–$12,000–$15,000. Injection seals; it does not lift.

Foundation repair: methods and costs

Updated October 2026 · Data as of 2026-10-02

Foundation repair runs $2,035–$8,134 depending on the problem (about $5,000 typical). The first decision is the cause: a stable crack is injected; a moving foundation is underpinned. Below are the methods, installed bands by problem, and an insurance-coverage note — with the full cost breakdown in the foundation repair cost guide.

Cost at a glance, by problem

Each row is an installed band from the foundation dataset. Triplets are low–typical–high; rows marked single-publisher are directional, not cross-published.

Problem / method	Installed band (low–typical–high)	Unit
Structural engineer inspection	$200–$300–$400	per inspection
Crack injection (epoxy/polyurethane)	$200–$500–$800	per crack (minor, injected)
Mudjacking / slab leveling	$903–$2,000–$3,192	per project (slab leveling)
Leak / basement waterproofing	$500–$2,500–$7,575	per project (waterproofing)
Slab foundation repair	$350–$5,000–$20,000	per project (slab)
Pier-and-beam repair	$700–$8,000–$25,000	per project (crawl/pier-beam)
Bowed / basement wall repair	$5,000–$10,000–$15,000	per wall/project
Underpinning / piers	$9,500–$12,000–$15,000	per project (piers/underpinning)
Settling / sinking repair	$4,500–$12,000–$20,000	per project (structural)

Honest notes: crack and settling rows draw on two publishers; structural-engineer, mudjacking, slab, pier-and-beam, basement-wall, underpinning and labor rows are single-publisher (flagged). Per-pier unit pricing is not published by the fetched sources — left unscored rather than invented.

What drives foundation repair cost

Cause: water or structure. Sealing a crack ($200–$500–$800 per crack) is a fraction of lifting a settled foundation ($9,500–$12,000–$15,000).
Foundation type. Slab, basement and crawl/pier-and-beam each price differently — a crawl space may need piers and joists; a slab may be leveled or replaced in part.
Severity. A hairline crack is cosmetic; stair-step cracking and floor slope mean movement that requires engineered piers.
Diagnosis first. A structural engineer inspection ($200–$300–$400) documents the cause — often required before an insurer or contractor will commit.
Water management. Leak and waterproofing work ($500–$2,500–$7,575) is frequently the real fix — stopping the water that moves the soil.

Insurance coverage note

Homeowners insurance usually excludes foundation repair caused by settlement, shifting soil or poor drainage — carriers treat those as maintenance or pre-existing conditions. Coverage is more likely when a sudden, accidental event is the cause (a burst supply line washing out soil, a vehicle impact). Because the cause decides the claim, get a written structural-engineer diagnosis before filing, and photograph damage and drainage conditions. This is general context, not legal or insurance advice.

Go deeper

Foundation repair cost — full cost guide: crack vs piering, severity and foundation-type breakdowns, line items, repair vs replace, and cited sources.
Foundation repair cost calculator — pick the problem and severity to see the installed band, with diagnosis and drainage add-ons.

Get local quotes

Contractor lead lane — placeholder

A vetted local-quote network for foundation repair is being onboarded (high-ticket structural work). This slot will connect you with licensed, insured foundation contractors once live. Until then: get a written structural-engineer diagnosis, then collect at least three written quotes that state the repair method, pier count where applicable, and warranty terms.

Sources

This Old House - Foundation Repair Cost (2026 Pricing) — high reliability — Range $2,224-$8,134 avg $5,179; hairline crack early $200-$800 (widened -> $10,000-$15,000+); labor ~$200/hr; foundation lifting $20,000-$23,000+. Fetched 2026-10-02 (200, 697,245 B).
Thumbtack - Foundation Repair Cost (updated Jul 1, 2026) — high reliability — Range $2,035-$7,329 avg $3,843 (low $764/high $18,352); cracks $1,982-$7,290, leaks $500-$3,500, underpinning $9,500-$15,000, mudjacking $903-$3,192, stabilizing $5,000-$10,000; engineer inspection $200-$400. Fetched 2026-10-02 (200, 145,388 B).
Bob Vila - Foundation Repair Cost (cites Angi) — high reliability — Range $2,176-$7,833 avg $5,001; bowed walls $5,000-$15,000; crack $250-$800 per crack; leak $2,000-$7,000; settling/sinking $4,500-$20,000; pier-and-beam $700-$25,000; slab repair $350-$20,000; basement waterproofing $2,300-$7,575. Fetched 2026-10-02 (200, 232,197 B).

Estimate only — get local written quotes and a structural-engineer diagnosis. Observations are national installed bands from public cost guides, not verified contractor pricing. Bands are per-source, never averaged; single-publisher rows and the missing per-pier unit pricing are carried as the dataset flags them. Source concentration: three publishers (2 open flags on the underpinning row).