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Foundation Repair Cost: $2,176–$8,200 (Average $5,175) in 2026

Author: CostGuideHQ Editorial·✓ Fact-checked·Updated July 2026·7 min read·5 sources·US national averages, USD
Quick answerQuick answer: Most homeowners pay $2,176 to $8,200 for foundation repair, averaging about $5,175 nationally. The method matters most: crack injection runs $200 to $1,000, piering runs $1,000 to $3,000 per pier, and a full underpinning job can reach $40,000.
  • The typical foundation repair project costs $2,176 to $8,200, averaging about $5,175 nationally (HomeAdvisor, This Old House, Bob Vila, Fixr).
  • Piering/underpinning, the most common structural fix, costs $1,000 to $3,000 per pier — the most consistent figure across sources (HomeAdvisor, Fixr, Bob Vila, This Old House).
  • Crack injection is the cheapest fix at $200 to $1,000 per crack, while a full underpinning or house-lifting job can run $10,000 to $40,000 (Fixr).
  • Bracing a bowing basement wall with carbon fiber straps or steel beams runs $4,000 to $12,000, and up to $15,000 for severe hydrostatic pressure damage (Fixr, Bob Vila).

How much does foundation repair cost?

National average
$5,175
total project
Typical range
$200–$40,000
Most projects
Whole project
$2,176–$8,200
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Cost by material / type

TypeLowHigh
crack injection/sealing (per crack)$200$1,000
piering/underpinning (per pier)$1,000$3,000
slab jacking / mudjacking (whole project)$500$1,900
wall bracing/reinforcement for a bowing wall (carbon fiber straps, steel beams)$4,000$12,000
drainage system / foundation waterproofing (whole project)$2,300$7,575
minor repair (single crack or small settling spot)$200$1,300
moderate repair (typical whole-project: piering, mudjacking, or wall sealing)$2,176$8,200
major/structural repair (full underpinning or house lifting)$10,000$40,000
Estimate your cost
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Rough estimate only — get local quotes for exact pricing.

What affects the cost?

  • Repair method — crack injection/sealing is cheapest at $200 to $1,000 per crack, while a full underpinning project runs $10,000 to $40,000 (Fixr, HomeAdvisor)
  • Number of piers needed — piering/underpinning work costs $1,000 to $3,000 per pier, and larger or more severely settled homes need more of them (HomeAdvisor, Bob Vila, This Old House, Fixr)
  • Whether a wall is bowing — stabilizing it with carbon fiber straps or steel beams runs $4,000 to $12,000, climbing to $15,000 for hydrostatic-pressure damage (Fixr, Bob Vila, This Old House)
  • Water and drainage problems — sealing/waterproofing a leaking foundation runs $2,300 to $7,575, and a standalone exterior drainage system adds $2,800 to $6,500 (Bob Vila, HomeAdvisor)
  • Foundation type — pier-and-beam repair runs $2,000 to $15,000 while slab foundation repair runs $1,000 to $10,000 for a comparable scope of work (Fixr)
  • Severity of settling — HomeAdvisor and Fixr both price sinking/settling damage at $4,500 to $25,000 or more, well above a routine repair (HomeAdvisor, Fixr, Bob Vila)
  • Whether an engineer's report is required first — a structural report runs $340 to $780 (HomeAdvisor) or $500 to $1,000 (This Old House), and a soil report runs $500 to $3,000 (This Old House)
  • Labor rates and region — foundation labor runs around $200 per hour in some markets (Bob Vila, This Old House)

How much does foundation repair cost?

Most homeowners pay $2,176 to $8,200 for a foundation repair project, averaging around $5,175 nationally. Four major sources land within a few dollars of each other on both ends: HomeAdvisor ($5,175 average, $2,225-$8,135 typical range), This Old House ($5,179 average, $2,224-$8,134), Bob Vila ($5,001 average, $2,176-$7,833), and Fixr ($5,200 average, $2,200-$8,200, or $1.50-$12 per square foot). HomeGuide reports a lower “most common cost” of $3,843 ($2,035-$7,329), likely reflecting smaller jobs in its own contractor network. That tight typical-range cluster only tells part of the story, though — “foundation repair” spans everything from a $200 crack seal to a $40,000 full underpinning project (Fixr), so the method and severity of the problem matter more than any single average.

What do the different repair methods cost?

The method you need drives the price far more than home size does. Crack injection/sealing, for hairline or non-structural cracks, costs $200 to $1,000 per crack (Fixr), with HomeAdvisor and Bob Vila both citing a tighter $250-$800 — see the foundation crack repair cost guide for severity-specific pricing. Piering/underpinning, installing steel, concrete, or helical piers to lift and support a settling foundation, costs $1,000 to $3,000 per pier, a figure that’s nearly identical across HomeAdvisor, Fixr, Bob Vila, and This Old House; a whole-house piering job runs $10,000 to $40,000 (Fixr) — full breakdown in the house leveling cost guide. Slab jacking/mudjacking, raising a sunken concrete slab with cement or foam, costs $500 to $1,900 for a typical project (HomeAdvisor, Fixr, This Old House) — see mudjacking cost. Wall bracing, stabilizing a bowing basement or foundation wall with carbon fiber straps or steel beams, costs $4,000 to $12,000, or up to $15,000 for severe hydrostatic pressure damage (Fixr, Bob Vila, This Old House). Drainage/waterproofing work runs $2,300 to $7,575 for sealing a leaking foundation (Bob Vila, This Old House), plus $2,800 to $6,500 for a standalone exterior drainage system (Bob Vila).

Why does severity change the price so much?

Because the same phrase — “foundation repair” — covers a $200 fix and a $40,000 one, depending on how far the problem has progressed. A minor repair (a single crack or small settling spot) typically runs $200 to $1,300. A moderate repair — the typical whole-project job most sources average, whether it’s piering a few spots, mudjacking a slab, or sealing a wall — lands in the $2,176-$8,200 range this guide’s headline figures reflect. A major or structural repair, like a full underpinning project or house lifting, runs $10,000 to $40,000 (Fixr), with This Old House and Bob Vila both pricing dedicated “foundation lifting and leveling” work at $20,000 to $23,000. Home size isn’t the main driver of that jump. Tim Tracy, regional manager at Groundworks, told This Old House: “The home’s size or footprint does not affect the price as much as the portion being affected” — a small home with severe settling in one spot can cost as much to fix as a larger home with a mild, localized issue.

How can you lower your foundation repair cost?

  • Get an inspection before you get repair quotes. A foundation inspection pins down exactly which method you need — catching a problem while it’s still a $200-$1,000 crack repair instead of letting it become a $10,000+ structural job.
  • Match the method to the actual problem. A sunken concrete slab is a mudjacking job ($500-$1,900), not a piering job ($1,000-$3,000 per pier) — hiring the wrong specialist can mean paying for capacity you don’t need.
  • Address drainage and moisture early. Water and hydrostatic pressure are common underlying causes of both cracking and bowing walls; fixing drainage ($2,300-$7,575 for sealing, or $2,800-$6,500 for a standalone system, Bob Vila) can prevent a cheaper problem from becoming an expensive one.
  • Ask whether your case is pier-and-beam or slab. The repair path — and the price — differs by foundation type; the pier-and-beam foundation repair guide covers beam- and pier-specific pricing distinct from slab work.
  • Get multiple quotes for anything beyond a simple crack seal. With whole-project figures spanning $2,176 to $40,000 depending on scope, a second or third bid is worth the time once the job moves past a single crack or minor settling spot.

Prices vary by region, soil conditions, and how far a problem has progressed before you catch it, so treat the figures above as a planning budget. Confirm with your contractor which method they’re quoting — crack injection, piering, mudjacking, bracing, or drainage — since each prices very differently.

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Frequently asked questions

How much does foundation repair cost on average?
Most homeowners pay $2,176 to $8,200 for a typical foundation repair project, averaging around $5,175 nationally (HomeAdvisor, This Old House, Bob Vila, Fixr). The full realistic range runs much wider, from about $200 for a single sealed crack up to $40,000 for a full underpinning job, since 'foundation repair' covers everything from a cosmetic fix to a major structural rebuild.
What's the cheapest way to fix a foundation problem?
Crack injection or sealing is the least expensive method, at $200 to $1,000 per crack (Fixr), or $250 to $800 per crack according to HomeAdvisor and Bob Vila. See our [foundation crack repair cost guide](/foundation-crack-repair-cost) for a full breakdown by crack severity.
How much does it cost to fix a bowing basement wall?
Stabilizing a bowing wall with carbon fiber straps or steel beams costs $4,000 to $12,000 (HomeAdvisor, Fixr, Bob Vila, This Old House). Fixr and Bob Vila both note that severe hydrostatic-pressure damage can push that cost as high as $15,000.
What's the difference between mudjacking and piering?
Mudjacking (slab jacking) pumps cement slurry or foam under a sunken concrete slab to raise it, costing $500 to $1,900 for a typical whole-project job (HomeAdvisor, Fixr, This Old House) — see our [mudjacking cost guide](/mudjacking-cost). Piering/underpinning is a bigger structural fix: steel, concrete, or helical piers installed under the foundation to lift and support it, at $1,000 to $3,000 per pier (HomeAdvisor, Fixr, Bob Vila, This Old House) — see our [house leveling cost guide](/house-leveling-cost) for the whole-house version of that job.
Do I need an inspection before I can get a foundation repair estimate?
Most contractors want a structural or soil engineer's assessment before quoting piering or underpinning work. A structural report costs $340 to $780 (HomeAdvisor) or $500 to $1,000 (This Old House), and a soil report runs $500 to $3,000 (This Old House). See our [foundation inspection cost guide](/foundation-inspection-cost) for the full pricing breakdown.
Does pier-and-beam foundation repair cost more than slab repair?
It can run either direction depending on scope: pier-and-beam foundation repair costs $2,000 to $15,000 while slab foundation repair costs $1,000 to $10,000 for a comparable job (Fixr). Our [pier-and-beam foundation repair cost guide](/pier-and-beam-foundation-repair-cost) covers the beam, joist, and pier-specific pricing in more detail.
Why do foundation repair cost estimates vary so much between sources?
HomeAdvisor, This Old House, Bob Vila, and Fixr all cluster tightly around a $2,176-$8,200 typical range and a roughly $5,000-$5,200 average, but HomeGuide reports a lower 'most common cost' of $3,843 with a $2,035-$7,329 range, likely reflecting a different mix of smaller jobs in its contractor database. The bigger driver of variation is scope: a single crack fix and a full underpinning project both fall under 'foundation repair,' and those can differ by a factor of 40.
What drives the cost of a drainage or waterproofing fix?
Sealing and waterproofing a leaking foundation runs $2,300 to $7,575 (Bob Vila, This Old House, HomeAdvisor, Fixr), and a standalone exterior drainage system adds $2,800 to $6,500 (Bob Vila). Moisture and hydrostatic pressure are also common underlying causes of the cracking and bowing that drive up other repair costs.

Sources

Figures synthesized and cross-checked across these sources (retrieved 2026-07-28):

  • HomeAdvisor — Foundation repair averages $5,175, normal range $2,225 to $8,135 (as low as $500 or as high as $16,000 for larger or more complex jobs). Crack repair costs $250 to $800. Piering/underpinning costs $1,000 to $3,000 per pier. Mudjacking/slabjacking costs $500 to $1,300. Waterproofing costs $2,000 to $7,000; foundation sealing costs $2,500 to $8,200. Leaking foundation repair costs $2,000 to $7,000. Settling/sinking foundation repair costs $5,000 to $25,000. Bowing wall repair costs $4,000 to $12,000. Structural engineer reports cost $340 to $780.
  • Fixr — National average range $2,200 to $8,200, with a national average of $5,200, or $1.50 to $12 per square foot. Crack sealing/epoxy injection costs $200 to $1,000. Mudjacking/slab jacking costs $500 to $1,900. Sealing/waterproofing costs $2,400 to $7,000. Carbon fiber reinforcement strips cost $4,000 to $12,000. Foundation tiebacks cost $5,000 to $15,000. Underpinning/piering, the primary leveling method for a sinking foundation, ranges from $10,000 to $40,000; individual piers cost $1,000 to $3,000 each. House lifting costs $20,000 to $30,000. By issue: foundation crack $200-$1,000; foundation leak $2,000-$10,000; hydrostatic pressure/bowing wall $4,000-$15,000; sinking or uneven settling $4,500-$25,000 or more. By foundation type: slab $1,000-$10,000; pier and beam $2,000-$15,000; crawl space $2,500-$12,000; basement $2,500-$25,000.
  • Bob Vila — Foundation repair costs range from $2,176 to $7,833, with a national average of $5,001. Crack repair costs $250 to $800 per crack. Mudjacking/slabjacking costs $500 to $1,300. Piering/underpinning costs $1,000 to $3,000 per pier; individual piers may cost $700 to $2,100 depending on the type. Stabilization/reinforcement costs $4,000 to $12,000. Foundation lifting costs $20,000 to $23,000. Leak repair costs $2,000 to $7,000. Bowing wall repair costs $5,000 to $15,000. Sinking foundation repair costs $4,500 to $20,000. Waterproofing costs $2,300 to $7,575. Drainage system installation costs $2,800 to $6,500. Sump pump installation costs $641 to $2,044. Labor runs about $200 per hour; permits cost $75 to $150.
  • This Old House — Foundation repair costs range from a low end of $2,224 to a high end of $8,134, averaging $5,179. Mud-jacking/slab-jacking costs $550 to $1,300. Piering/underpinning costs $1,000 to $3,000 per pier. Foundation sealing/waterproofing costs $2,300 to $7,300. Foundation reinforcement/stabilization costs $4,000 to $12,000 (for 12 strips). Foundation lifting/leveling costs $20,000 to $23,000. Minor cracks cost $200 to $800 to repair, while structural damage from delayed repairs can cost $10,000 to $15,000 or higher. Soil report costs $500 to $3,000; structural engineer report costs $500 to $1,000; permits cost $75 to $150; labor runs about $200 per hour. Tim Tracy, regional manager at Groundworks, said: 'The home's size or footprint does not affect the price as much as the portion being affected,' and that repair costs run about the same for all foundation types 'except for pier and beam and stone foundations.'
  • HomeGuide — The national average cost of foundation repairs ranges from around $2,035 to $7,329, with a most common cost of $3,843. Underpinning costs $9,500 to $15,000. Mudjacking costs $903 to $3,192. Stabilizing costs $5,000 to $10,000. Structural engineer inspection costs $200 to $400.

This is the umbrella guide for foundation repair as a category. For deeper, method-specific pricing, see this site's dedicated guides: foundation-crack-repair-cost (crack sealing/injection), foundation-inspection-cost (the pre-repair inspection), house-leveling-cost (piering/underpinning a settling structure), pier-and-beam-foundation-repair-cost (beam, joist, and pier work specific to pier-and-beam foundations), and mudjacking-cost (slab jacking/leveling a sunken slab). Four sources price 'foundation repair' as a single national figure and cluster tightly: HomeAdvisor ($5,175 average, $2,225-$8,135 typical range), This Old House ($5,179 average, $2,224-$8,134), Bob Vila ($5,001 average, $2,176-$7,833), and Fixr ($5,200 average, $2,200-$8,200, or $1.50-$12 per sq ft) — all four describe essentially the same typical project. HomeGuide reports a lower 'most common cost' of $3,843 with a $2,035-$7,329 range, which likely reflects a different mix of smaller jobs in its provider database rather than a directly comparable figure. national_average_usd is anchored to HomeAdvisor's verbatim $5,175, which sits almost exactly between This Old House's and Fixr's averages. project_low_usd/project_high_usd ($2,176-$8,200) bracket the four closely-clustered typical-range figures, from Bob Vila's low end to Fixr's high end. range_low_usd/range_high_usd ($200-$40,000) widen that to the full realistic spread this category covers, from a single hairline crack sealed for as little as $200 (Fixr) up to a full underpinning/piering project at $10,000-$40,000 (Fixr) or a house-lifting job at $20,000-$30,000 (Fixr, Bob Vila, This Old House). by_type breaks the category down two ways: by repair method (crack injection, piering/underpinning, slab jacking/mudjacking, wall bracing/reinforcement, and drainage/waterproofing — the five main techniques these sources describe) and by severity tier (a minor single-crack fix, a moderate typical whole-project repair, and major structural work like full underpinning or house lifting). Wall bracing figures ($4,000-$12,000) come from HomeAdvisor, Fixr, Bob Vila, and This Old House describing carbon-fiber-strap or steel-beam stabilization of a bowing wall; Fixr and Bob Vila note this can run as high as $15,000 for severe hydrostatic-pressure damage. Figures generally cover the structural repair itself; they exclude drywall/flooring cosmetic restoration and full foundation replacement, which sources price as separate, larger jobs.