Foundation Repair Cost (2026)

Foundation repair cost: $2,200–$8,200 across all project types; most homeowners pay around $5,200.

“Every HomeCostOwl headline range is the complete standard job, installed: materials, labour, standard permits and disposal included. Anything not included is named and priced in its own section on the same page.”

Foundation repair has a pricing problem before it has a pricing range: there is no single “foundation job.” The same trade seals a hairline crack for a few hundred dollars and underpins a sinking house for thirty thousand, and most published “averages” silently average those two different worlds together. So this guide does it the other way round, it prices each repair method from its parts, shows you what a typical job of that type actually costs, and starts by helping you work out which problem you have.

Read the headline the way it deserves: roughly a third of foundation projects are small jobs, crack sealing, a short drainage fix, and they pull the average down. A structural repair is a different budget: piering a settling section of house typically runs $10,000–$30,000, and a single crack repair typically runs $250–$800 per crack. Find your problem type in the ladder below, then budget from the method table, not from the average.

How the total is built: the Component-Built Cost Method

Foundation work is not priced like a product swap, it is priced by method, per unit of that method. Every price in this guide is built the same way, our Component-Built Cost Method:

Total job cost = (units of the method × installed price per unit) + job-level items the unit price doesn’t already carry

• The unit, the method’s own counting unit: one pier, one strap, one anchor, one crack, or one linear foot of waterproofing.
• Installed price per unit, built from the parts inside one unit. Inside one steel push pier: roughly $350–$800 of steel pipe and bracket, $250–$500 of excavation to expose the footing and backfill afterwards, $400–$900 of crew time to drive, load-test and lift, and $100–$300 of the job’s engineering, permit and equipment mobilisation spread across its piers, a component sum of about $1,100–$2,500 per pier, inside the published $1,000–$3,000 band once deep drives (30 ft+) and interior access are counted. The same build prices the other units in the method tables below: helical piers, pressed concrete piers, carbon fibre straps at $400–$800 per strap installed.
• Job-level items, the costs that belong to the job rather than the unit: the engineer’s report where the job needs one ($300–$1,000), a soil report where one is specified ($500–$3,000), and anything beyond the standard scope, each named and priced in its own section on this page. The standard permit is already inside the scope of every figure here.

Where a method prices as a whole system rather than a unit count, interior and exterior waterproofing, the guide publishes the project range and its per-linear-foot basis instead of forcing a unit formula onto a system job. The full method, including how each build is checked against at least three independent published sources before anything is published, is on How We Estimate.

Worked example: a bowing basement wall, stabilised with carbon fibre straps

A poured-concrete basement wall bowing about 1½ inches, with no shear displacement, the carbon fibre case from the method table below. Straps are fitted about every 4 feet, so a wall of about 32 feet takes 8 straps. A bowing wall is an engineer-first case in the ladder below, so the example includes the engineer’s report, it is the guide’s own advice, priced:

Line item	Cost
Carbon fibre straps, 8 straps × $600 per strap installed (a point inside the published $400–$800 per-strap range: strap kit, surface prep and epoxy, 1–2 hours of labour per strap)	$4,800
Structural engineer’s inspection + written report (inside the published $300–$1,000 range; most homeowners pay $400–$700)	$500
Permit	Included in the standard scope, $0 extra
Total	$5,300

Step by step: 8 × $600 = $4,800; $4,800 + $500 = $5,300. The straps alone ($4,800) sit inside the published $2,500–$7,000 per-wall range, and the $5,300 job total sits inside the $2,200–$8,200 all-project headline range, right at the “around $5,200” most homeowners pay. Your quote moves with your strap count, your wall’s condition, and whether your job needs the engineer, the soil report, or drainage work alongside, each priced in its own section below.

First, find your rung: monitor, repair, or engineer first

The cheapest skill in foundation repair is knowing which of these three situations you’re in. We give cost information, not diagnoses, but these are the signs professionals use to sort jobs, in plain language.

Rung 1, Monitor (no repair bill yet). Hairline cracks under about 1/8 inch wide, running vertically in a poured-concrete wall, that are not growing, not offset (one side higher than the other), and not leaking. Fine cracks in a slab or in drywall that have been stable for years. What to do: photograph them with a ruler in frame, pencil-mark the ends with today’s date, and check every few months. A crack that isn’t moving isn’t a repair, it’s a record to keep.

Rung 2, Repair (get quotes, planned work). Cracks that leak water. Cracks between roughly 1/8 and 1/4 inch. A door or window that has started sticking in the last year or two. A section of slab or flatwork that has settled and trips feet or pools water. Damp basement walls with no structural movement. These are real repairs, crack injection, drainage work, slab levelling, interior waterproofing, and they’re the jobs in the $250–$8,200 heartland of this guide. Get 2–3 quotes; the diagnosis is usually straightforward.

Rung 3, Engineer first (diagnosis before any repair quote). Horizontal cracks in a block or poured wall. A wall bowing inward. Stair-step cracks in brick or block with offset, one side of the crack sitting higher than the other. Cracks wider than about 1/4 inch, or any crack that is visibly growing between your pencil checks. Floors that slope enough to roll a marble. A chimney leaning away from the house. Several of these signs together, or anything that appeared suddenly after a flood, a major plumbing leak, or an earthquake.

For these, hire an independent structural engineer before a repair contractor. The reason is structural, not bureaucratic: a repair company sells a method (piers, straps, anchors), and its free inspection tends to find that method. An engineer sells only a diagnosis, typically $300–$1,000 for an inspection with a written report, most homeowners paying $400–$700, and that report becomes the specification every contractor quotes against. On a five-figure job, it is the cheapest money in this guide.

A note on safety, without the scare tactics. Most foundation problems develop slowly and are repairable; a crack is not an emergency, and this page is not a diagnosis. What foundation work is not, at the structural end, is DIY: underpinning involves excavation next to a loaded wall and hydraulic lifting of the house, and it belongs to licensed, insured crews. If a wall is bowing severely, a floor feels springy or unsafe, or you smell gas after ground movement, treat those as their own problems, leave, and call the relevant professional or utility first, then come back to budgeting.

Foundation repair cost at a glance

Job	Typical cost	Source
Crack injection (epoxy or polyurethane), per crack	$250–$800	Angi, 2026; HomeGuide, 2026 (member-reported project data), both publish $250–$800 per crack
Structural engineer’s inspection + written report	$300–$1,000	Angi, 2026; Fixr, 2026 (average ≈ $600); HomeGuide, 2026 (average ≈ $550)
Mudjacking / slabjacking (flatwork, partial slab)	$500–$1,900	Fixr, 2026 ($500–$1,900); Angi, 2026 ($500–$1,300, small-slab scale)
Polyurethane foam levelling (polyjacking)	$1,000–$3,000	HomeGuide, 2026 (typical project; $5–$25 per sq ft)
Pressed concrete piers, per pier	$700–$1,800	Component build (cost-check record: ≈ $700–$1,200 typical); Angi, 2026 (typical ≈ $1,000 per pier), top of band flagged in the prep notes
Steel push piers, per pier	$1,000–$3,000	Angi, 2026; Fixr, 2026 (both $1,000–$3,000 per pier); component build ≈ $1,100–$2,500
Helical piers, per pier	$1,500–$4,000	HomeGuide, 2026 (typical $2,000–$4,000, average ≈ $3,000); Woogoro, 2026 ($1,500–$3,000); component build to $4,000 for engineered work
Typical piering project (6–12 piers)	$10,000–$30,000	Angi, 2026 (underpinning project guide; Fixr, 2026, publishes $10,000–$40,000)
Carbon fibre wall straps, per wall (6–10 straps)	$2,500–$7,000	Component build: $400–$800 per strap installed × 6–10 straps (cost-check record)
Wall anchors / tiebacks, per project	$5,000–$15,000	Fixr, 2026 (tiebacks $1,500–$2,000 each; $5,000–$15,000 per project)
Interior waterproofing (drain tile + sump)	$3,000–$10,000	Woogoro, 2026 ($3,000–$10,000); HomeGuide, 2026 (full multi-wall systems $6,000–$12,000)
Exterior waterproofing (excavation + membrane)	$8,000–$25,000	Woogoro, 2026 ($8,000–$25,000); HomeGuide, 2026 ($10,000–$18,000)
Most homeowners pay (all project types)	around $5,200	Angi, 2026 (project average $5,174); Fixr, 2026 ($5,200); Forbes Home, 2026 (≈ $5,400), three separately compiled dataset averages

What’s included in the headline range, and what isn’t

Included in every headline figure on this page (the complete standard job, installed): the method’s materials; the labour to install them; the standard permit ($75–$150 typical); and the excavation, spoil handling, backfill and disposal the method’s own pricing carries (all inside the per-pier and per-system builds above).

Not included, named and priced on this page:

• Structural engineer’s inspection and written report, the diagnosis step before structural work: $300–$1,000, most homeowners paying $400–$700. Priced separately because it is bought before, and independently of, the repair itself.
• Soil (geotechnical) report, where the engineer or the job specifies one: $500–$3,000.
• Excavation beyond the standard scope: digging priced by volume at $50–$200 per cubic yard, or equipment time at $100–$300/hr. Rock or ledge removal is the tail risk: $1,000–$20,000.
• Interior finish restoration after interior piers (drywall patch, texture, paint): $300–$1,500 per affected room. The concrete breakout and repour itself is already inside the interior-pier premium in the piering section, this line is finishes only.
• Landscaping restoration for the dug strip (regrade and resod): $200–$1,500 typical; sod installs at about $1–$3 per sq ft. Replacement shrubs and plantings, like for like, are priced locally on quote, no established dataset publishes a defensible generic range for them.
• Drainage correction where it is a separate job (French drains and related work): roughly $2,800–$6,500.

Why you’ll see averages of $5,000 and $11,950 for “the same” repair

Search this topic and you’ll meet two numbers that can’t both be the average, and understanding why is worth more than either figure.

• The ~$5,000 averages are real, and they’re ticket averages. Angi’s project dataset averages $5,174 across foundation jobs; Fixr puts its average at $5,200; Forbes Home at about $5,400. These count every foundation project in the data, and a large share of foundation projects are small: a crack injected, a leak sealed, a short run of drain tile. When a $500 crack job and a $25,000 piering job average together, the answer describes neither.
• The ~$11,950 figure describes a different population, or none. You’ll find “average foundation repair: $11,950” on pages that publish no dataset behind it. It roughly matches what you get if you average only structural jobs (piering, wall stabilisation, major waterproofing) and exclude the small work entirely. As a description of structural repairs, a five-figure average is plausible. As “the average foundation repair,” it’s misleading, and because no source publishes the data, we don’t use it.
• The usable rule: budget by the job you actually have. Small sealing and drainage jobs live in the hundreds-to-low-thousands. Levelling lives in the low thousands. Piering and wall stabilisation live in the five figures. Any single “average” that doesn’t say which of those it’s averaging is a number to walk past.

Cost by repair method

Crack repair: injection, per crack

The most common foundation bill. A contractor injects epoxy (rigid, bonds the crack back together, used on dry cracks where strength matters) or polyurethane foam (flexible, expands to seal, used on leaking cracks and cracks that still move slightly with the seasons) from the inside, without excavation.

• Typical cost: $250–$800 per crack, professionally injected. Long cracks, wide cracks and cracks needing exterior excavation to reach cost more.
• The per-crack caveat: quotes are per crack, but jobs are per visit. A wall with four leaking cracks is four cracks plus setup, some contractor price lists show wall injection jobs at $750 and up for exactly this reason. Get the quote itemised per crack so you can compare.
• What injection does and doesn’t do: it seals the crack and, with epoxy, restores some strength. It does not stop a foundation that is still moving, injecting a crack in a wall that keeps settling buys a seal that will split again. If the crack is a symptom of movement (Rung 3 signs), the movement is the repair; the crack is paperwork.
• DIY injection kits exist for hairline, dry, non-structural cracks and cost far less; they’re reasonable for a Rung 1 crack you want sealed against water. They are not a structural repair, whatever the packaging says.

Piering and underpinning: priced per pier

When part of a house settles, piers are driven or screwed into the ground beside the footing until they reach soil or rock that can carry the load, then bracketed to the foundation so that section of house rests on the piers instead of the failing soil. The house can usually be lifted part or all of the way back toward level as part of the same job. Everything about the price is per pier × how many piers, so here is the per-pier math, built from parts rather than copied from a table:

Pier type	What one pier is made of	Typical installed cost per pier
Pressed concrete piers	Precast concrete segments pressed into the ground by hydraulic ram; cheap material, depth limited by friction	$700–$1,800 (most jobs ~$1,000)
Steel push piers	Galvanised steel pipe driven segment by segment to refusal (load-bearing strata), plus a heavy steel bracket on the footing	$1,000–$3,000 (most jobs $1,200–$2,500)
Helical piers	A steel shaft with welded helix plates, screwed into the soil with a rotary drive; load confirmed by torque as it installs	$1,500–$4,000 (most jobs $2,000–$4,000)

Inside a push pier’s price: roughly $350–$800 of steel and bracket, $250–$500 of excavation to expose the footing and backfill afterwards, $400–$900 of crew time to drive, load-test and lift, and the rest in the engineering, permit and equipment mobilisation every job carries. Depth is the swing inside the range: a pier that refuses at 12 feet and one that drives to 30 feet are different amounts of steel and time wearing the same name, which is why published per-pier figures spread so widely, and why a quote should state the assumed depth and what happens to the price if the piers drive deeper.

How many piers does a house need? Piers are spaced roughly 5–8 feet apart along the section of foundation being supported, and only along that section. A settling corner might need 4–6; one full side of a house, 8–12; most residential piering jobs land at 6–12 piers. That puts a typical piering project at $10,000–$30,000 all-in. Two honest warnings: a quote that piers the entire perimeter of a house whose problem is on one side deserves a second opinion (and is exactly what the engineer’s report protects you from); and interior piers, needed when the middle of a slab settles, roughly one job in ten, cost about 20% more each, because the crew breaks through the floor, works inside, and repours the concrete afterwards.

Which pier type? Pressed concrete is the budget option common in slab country and performs where soils suit it; steel push piers are the general default for heavier loads and deeper strata; helicals install fast, work in tight access and lighter structures, and verify their own capacity by torque, and cost the most per pier. Your soil and your house pick the pier more than your preference does; this is an engineer’s-report question, not a brand question.

Slab levelling: mudjacking vs polyjacking

For a settled slab section or flatwork, a sinking garage floor, a slab corner, a porch, crews can pump material through small drilled holes to fill the void underneath and lift the concrete back toward level.

	Mudjacking / slabjacking	Polyurethane foam (polyjacking)
Material pumped	Cement/sand slurry	Expanding polyurethane foam
Typical project cost	$500–$1,900 (about $3–$8 per sq ft of slab treated)	$1,000–$3,000 (about $5–$25 per sq ft)
Holes	Larger (~2 inch), more visible patches	Smaller (~5/8 inch), neater finish
Weight added	Heavy, matters on weak soil	Very light, the usual reason to choose it
Working again	24–48 hours	Within the hour, typically
Best fit	Bigger flatwork areas on a budget	Interior slabs, finished spaces, weak soils

Scope honesty: those figures are flatwork and partial-slab jobs. Lifting the slab of an entire house is a bigger production and prices accordingly (contractor guides put whole-house slab lifting in the mid-four to five figures). And the shared caveat for both methods: levelling fills the void and lifts the slab, but if the soil underneath is still washing out or shrinking, the slab can settle again. A levelling quote that doesn’t explain why the slab sank, and what stops it recurring, is a quote for doing the job twice. Levelling is also not a substitute for piering when the foundation itself (the footing carrying the walls) has settled; the two jobs sound alike and solve different problems, which our supporting article “Piering vs mudjacking” walks through in full.

Bowing walls: carbon fibre straps, anchors and braces

Soil pressure pushes basement and crawl-space walls inward over time. The repair depends on how far the wall has moved:

• Carbon fibre straps, for walls bowing under roughly 2 inches, with no significant shear displacement. Straps are epoxied vertically to the inside of the wall about every 4 feet and anchored top and bottom; they stop further inward movement. They do not straighten the wall, nothing about that is hidden, it’s what the method is. $400–$800 per strap installed, so a typical wall of 6–10 straps runs $2,500–$7,000. No excavation, usually a day or two of work, and the straps can be painted over.
• Wall anchors / tiebacks, for greater movement, or where straightening is attempted. A helical anchor is screwed into stable soil well outside the wall, connected by a rod through the wall to a plate inside; tightening can hold the wall and, over time and sometimes with excavation, pull it back toward plumb. $1,500–$2,000 per anchor installed; a typical wall project runs $5,000–$15,000. Yard access and obstacles (patios, decks, the neighbour’s fence line) decide whether anchors are even possible.
• Steel I-beam braces are the third option, vertical beams set against the wall and anchored to the floor framing and slab. They hold a wall firmly, cost in the same territory as anchors, and cost you a few inches of room depth along that wall.

Wall work pairs with water: a wall bows because wet soil is heavy, so drainage correction (below) is often part of the same project, and stabilising a wall while leaving the water that bent it is a half-repair.

Waterproofing and drainage

Water is the cause behind a large share of everything above, so this is priced as its own method, in the order professionals usually escalate it:

• Exterior basics first: gutters, downspout extensions that discharge well away from the house, and soil graded to slope away from the foundation. This is the cheapest line in the guide, often hundreds, not thousands, and the one that protects every other repair. Drainage system installation where the yard needs it (French drains and related work): roughly $2,800–$6,500.
• Interior waterproofing, $3,000–$10,000 (about $50–$120 per linear foot of wall treated): a drain channel or drain tile system installed inside the basement perimeter, collecting water at the floor-wall joint and routing it to a sump pump. It manages water that reaches the wall rather than stopping it outside, which is why it’s cheaper, and for many wet basements it’s the proportionate answer. Full multi-wall systems in larger basements run to the top of the band and beyond ($6,000–$12,000 in member-reported data).
• Exterior waterproofing, $8,000–$25,000 (about $100–$250 per linear foot; typical full-perimeter jobs $10,000–$18,000): the wall is excavated to the footing, membrane and drainage board applied, new drain tile laid, then backfilled. It stops water before it touches the wall and is the most complete fix, and the most disruptive and expensive, because excavation is the job. Landscaping, porches and paving in the dig zone are removed and restored (or not) inside that figure, so ask.
• Crawl spaces handle water with the same interior drainage plus encapsulation (a sealed vapour barrier system), encapsulation commonly runs $1,500–$15,000 depending on the space, usually bundled with drainage and a dehumidifier; a dedicated basement waterproofing guide is planned in Wave 2 and will carry the full breakdown.

A standing rule for this whole section: waterproofing treats water, not structure. A leaking crack in a stable wall is a waterproofing job; a leaking crack in a moving wall is a structural job with water in it.

Cost by foundation type

Foundation type shapes access, and access shapes price. Read these as typical project spans for that foundation type, every method above still prices the way it prices, not as a second set of averages to budget from directly.

Foundation type	Typical project span	Why it lands there
Concrete slab	$350–$20,000	Crack sealing and flatwork levelling at the bottom; piering (usually exterior, sometimes interior breakouts) at the top. No walls to bow, no basement to waterproof, the problem menu is shorter.
Basement	$2,300–$7,600 typical ticket; full projects higher	The widest menu: cracks, waterproofing both sides, bowing walls, underpinning. Easy interior access keeps small jobs cheap; full exterior waterproofing and wall work take projects well past the typical span.
Crawl space	$2,500–$12,000	Interior access is good, which helps labour; add pier-and-beam style work (below) plus moisture control and encapsulation to the menu.
Pier and beam	$750–$25,000	Reshimming and relevelling at the bottom ($1,500–$10,000 in member data); replacing deteriorated piers ($1,000–$2,000 per pier) or beams ($1,500–$4,000 per beam) and moisture management in the middle; underpinning at the top. Wood rot, not soil, is often the real problem here.

What changes the price

• Pier count and depth. The master variable of structural work: cost is per-pier, pier count follows the length of wall affected, and per-pier price follows the depth to soil that can carry the load.
• Access. A pier dug in open lawn is the cheap case. Piers under decks, porches, additions or mature landscaping add removal-and-restore work; interior piers add floor breakout and repour (~20% more per pier); a tight crawl space slows everything.
• Soil. Expansive clay (the shrink-swell soils of Texas, Oklahoma and parts of the Midwest and South) drives both the problem and the price: deeper piers, more of them, and drainage/moisture management sold alongside, often correctly. Rocky soil slows excavation; sandy soil can make helicals the practical choice.
• The engineer’s report and permits. Budget $300–$1,000 for the engineer (most pay $400–$700) where the job needs one, and $75–$150 for the permit on typical work, some cities require the engineer’s stamp before they’ll permit structural foundation work at all, which settles the order of operations for you.
• Region and crew market. Foundation labour is specialised and local; the same 8-pier job prices noticeably differently in a high-cost metro than in a small market, and in clay country where foundation companies compete on every street than where the nearest crew drives two hours.
• What’s bundled. Drainage correction, waterproofing, landscaping restoration, concrete breakout and repour, each is a real line that may or may not be inside a given quote. The quote-comparison section below exists because of this line.
• Urgency. Genuinely urgent foundation work is rarer than it’s sold as, most problems took years to develop. A sudden change (after a flood, a burst supply line washing out soil, an earthquake) is the exception that justifies moving fast.

Foundation repair cost by region

The national figures above are the headline; where you live moves them, but in foundation work, region changes the job as much as the price of the same job. Three things move:

• Labour and digging conditions move most. Foundation crews are specialised and local. Modernize’s 2026 regional analysis puts crew labour around $125–$225 an hour in most Midwest markets and $250–$350 an hour in California metros, against a national crew rate of about $200 an hour (Angi). Rocky soil, ledge and deep frost lines all make digging, the first step of every pier and every exterior waterproofing job, slower and dearer.
• Permits and engineering move some. The permit fee itself is small ($75–$150 typical); what varies is the regime around it. Seismic zones on the Pacific coast and strict-permitting cities in the Northeast more often require engineered designs and inspections before work starts, and that scope is real money even when the fee is not.
• Materials move least. A steel pier is a manufactured product, pipe, bracket, helical shaft, distributed nationally. The steel in a Texas pier and a Michigan pier left similar warehouses at similar prices. The difference is the crew, the dig and the depth, not the metal.

The mix of work is regional too: expansive clay in Texas, Oklahoma and Colorado’s Front Range makes piering the everyday job; deep frost lines in the Northeast and Midwest mean basement foundations, deeper piers, and wall-and-water work dominating instead; Florida’s sand and sinkhole risk pushes contractors toward helical piers; and the Pacific coast adds seismic engineering review to structural jobs.

One dataset’s full map, direction, not verification. Only one established dataset (Modernize, from its analysis of 2026 contractor quotes) currently publishes a full set of regional ranges for foundation repair. We show it for what it is, one dataset’s view, useful for direction, not a verified range:

Region (Modernize’s groupings)	Modernize typical range
Pacific Coast (CA, OR, WA)	$4,000–$13,500
Northeast	$3,500–$13,500
Mountain West	$3,000–$10,000
Midwest and Plains	$2,800–$9,500
Southeast	$2,500–$9,500
South Central	$2,500–$8,000

Where two datasets publish, we show both. For the largest metros and states below, Angi’s project data and Modernize’s analysis both publish figures. They are shown side by side, attributed, and never blended into a single range neither one published:

Area	Angi (project data)	Modernize (2026 analysis)
Houston / Texas	Houston projects $3,300–$6,800	Texas typical $2,500–$8,000 (most work $3,300–$7,000)
Los Angeles / California	Los Angeles projects $3,200–$9,200	California typical $4,500–$15,000, average ≈ $9,800
Miami / Florida	Miami projects $4,500–$9,100	Florida typical $2,500–$7,000
Denver / Colorado	Denver projects $3,500–$14,000	Colorado typical $3,000–$10,000
New York City	New York projects $1,700–$5,500	New York City average ≈ $6,900 (state $4,000–$12,500)

Read the New York row carefully: the two datasets disagree outright, Angi’s New York project band sits below its own national average, while Modernize puts the city’s average above it. We publish both rather than average them into a number neither supports; in New York, more than anywhere, your local quotes are the data. Houston is the opposite case, the two agree closely, though Modernize cross-checks its figures against industry benchmarks (including HomeAdvisor’s), so read that agreement as a strong indication rather than two fully separate measurements. And Miami prices above Florida’s state band in Angi’s data, which is the usual metro pattern.

For every other state, and for the six regions as verified ranges, we publish no figure, because no second established dataset exists yet. A state table built on one dataset dressed up as consensus is exactly what this site exists to avoid; we’d rather omit a state than invent it. Regional figures are re-checked on the same quarterly cycle as the national ones, and states will be added as soon as a second dataset supports them. Regional figures checked October 2026.

How to compare foundation quotes line by line

Foundation quotes for the same house can differ by $10,000 while describing, on paper, “foundation repair.” The difference is always in these lines, ask for each one, in writing, from every bidder:

1. The diagnosis. What is moving, why, and what evidence (floor elevation readings, crack measurements) supports it? A quote without a diagnosis is a price without a product.
2. Pier count, type and placement. How many, which system, where, and spaced how? Compare counts between quotes before comparing totals; a cheaper quote with four fewer piers is not the same job.
3. Depth and the refusal rule. What depth is assumed, and is the per-pier price fixed if piers drive deeper? (Some contracts charge by the foot beyond a depth; know before the rig arrives.)
4. Lift goal. Stabilise in place, or lift toward level, and how much lift is promised? Lifting is harder, riskier to finishes (drywall and tile crack as a house moves back), and not always wise. “Stabilise” honestly stated beats “level” vaguely implied.
5. Engineering and permits. Is an engineer’s design or stamp included? The permit, included, and in whose name?
6. Breakout and restoration. Interior piers, landscaping, porches, paving, drywall: what gets opened, and what gets put back, by the contractor, or by you at your cost?
7. Drainage and water. Does the plan address the water or soil condition that caused the problem, or only the symptom?
8. The warranty, in its actual terms. “Lifetime” should mean: transferable to the next owner, covering what exactly (re-settlement of the piered area? how much movement?), with what exclusions and what claim process. A transferable warranty, documented, is also the piece of paper that matters when you sell.
9. Payment schedule. Deposit size and milestones. On structural work, you should never be most-of-the-way paid before the piers are in the ground.

Ways to save, honestly

• Fix the water first. Gutters, downspouts and grading are the cheapest items in this guide and the cause behind a large share of foundation problems. Some “foundation problems” shrink to maintenance once the water is managed, and every structural repair lasts longer with the water handled.
• Buy the diagnosis before the cure. The engineer’s $300–$1,000 report is what stops a $4,000 problem being sold as a $20,000 whole-perimeter pier job, and stops a structural problem being cosmetically injected. It pays for itself in either direction.
• Pier the problem, not the perimeter. Support the elevations that have moved. Whole-house piering has legitimate cases (an engineer’s plan saying so is one) and sales cases.
• Repair the small job while it’s small. A $250–$800 crack seal on a stable crack, or an early drainage fix, is the cheapest foundation work there is. The honest version of the scare line: problems caught at Rung 1–2 stay in three and four figures far more often than problems caught at Rung 3.
• Get 2–3 quotes against the same scope. Ideally against the engineer’s specification. Quotes for different jobs can’t be compared, and the cheapest unlike-for-like quote is usually the one missing the most lines.
• Keep your own records. Dated crack photos, floor plans with pier locations, the engineer’s report, the warranty. They lower your next repair bill and they are what a future buyer (and their lender) will ask for.

Does insurance cover foundation repair?

In general terms only, your policy document and your insurer are the authority here, not this page:

• The usual answer is no for the common causes. Standard homeowners policies generally exclude settling, shrinking, expanding soil, earth movement and gradual water seepage, which is most of what this guide prices. Foundation waterproofing as a project is likewise generally not covered.
• Sudden and accidental can be different. Damage caused by a covered event, a burst pipe that washes out soil, a fire, a vehicle impact, certain storm damage, may be covered, minus your deductible, where the cause is a covered peril. The distinction insurers draw is between the event and the slow process.
• Newer homes may have a third route: a builder’s warranty, where one exists and is still in term, can cover genuine defects in workmanship or materials.
• Flood and earthquake are separate policies/riders, not part of a standard policy, relevant if your foundation problem arrived with either.

If you’re pricing a repair after a specific event, the sequence that protects you is: document the damage and the date, read your policy’s exclusions, then talk to your insurer and get your own engineer’s view, before signing a repair contract sized by anyone’s guess about coverage.

How we estimate these costs

Every range on this page is built with our Component-Built Cost Method, from the components of the job: for piering, the steel, bracket, excavation and drive labour inside one installed pier, multiplied by honest pier counts; for straps, anchors, injection and waterproofing, the materials, crew time and access the method actually involves, and then checked against at least three independent published cost sources (for this page: Angi’s 2026 project data, Fixr’s 2026 cost guide, HomeGuide’s member-reported project costs, Forbes Home’s cost research, Modernize and Woogoro’s 2026 guides, all checked October 2026).

Where the sources disagree, and on helical piers and “average” foundation costs they genuinely do, we publish the range the component build supports and say so in our internal cost-check record. Regional figures follow a stricter version of the same rule: they appear only where two established datasets publish them, shown attributed side by side, and where only one dataset publishes a full regional table (Modernize’s), it is labelled on the page as one dataset’s view, not a verified range. Two widely cited sources were deliberately not counted as independent on this page, because they republish Angi’s data (NerdWallet) or Angi’s tables (This Old House).

Prices are re-checked quarterly. Full method: How We Estimate. Your own foundation repair cost should pass the same test: priced from the method’s parts, piers, straps, injection, drainage, not from a blended average.

FAQ

How much does foundation repair cost on average?
Across all foundation projects, the major datasets average around $5,200 (Angi $5,174, Fixr $5,200, Forbes about $5,400), with most projects between $2,200 and $8,200 (costs checked October 2026). But that average mixes $500 crack jobs with $25,000 piering jobs, budget from the method you need: crack injection $250–$800 per crack, levelling $500–$1,900, piering $10,000–$30,000 for a typical project, wall stabilisation $2,500–$15,000 depending on method.

Does foundation repair need a permit, and is it in the price?
Usually, for structural work: piering, wall stabilisation and foundation lifting typically require a permit ($75–$150 in most places, up to about $500 in strict jurisdictions; costs checked October 2026), and some cities require an engineer’s stamp before they’ll issue one. Small sealing and waterproofing jobs often don’t. On this page, the permit is inside the standard scope (see the scope line under the headline range). On a quote, ask whether it’s included and in whose name, that’s item 5 of the quote checklist above.

Is foundation repair worth it?
For a structural problem in a home you’re keeping, almost always yes: settlement and wall movement don’t self-correct, they progress slowly and make the eventual repair bigger, and an unrepaired structural problem will surface in any sale, in the inspection, in the buyer’s financing, and in the price. Documented repairs with a transferable warranty are the industry’s normal answer to that. The cases where it’s genuinely a judgement call: cosmetic-only damage (monitor it instead), and a repair estimate approaching the value the house can support, that’s a conversation for the engineer’s report and a local agent, in that order. Our supporting article “Is foundation repair worth it before selling a house?” works through the selling case specifically.

How long do foundation repairs last?
It depends on the method’s job. Piers and underpinning are designed as permanent support, the piered section rests on load-bearing strata, not on the soil that failed, and lifetime transferable warranties are the standard offering on that work (read yours for what “lifetime” covers). Carbon fibre straps permanently arrest further bowing; they don’t degrade on a schedule, but they don’t reverse movement. Crack injection seals last for years on a stable crack and split early on a moving one, the seal’s lifespan is really a report on the foundation’s. Mudjacking and foam levelling last as long as the soil underneath holds; if the void-forming cause (washout, shrinkage) isn’t fixed, re-settlement is a matter of time.

Does homeowners insurance cover foundation repair?
Usually not for the common causes: standard policies generally exclude settling, earth movement and gradual seepage. Damage from a sudden, covered event, a burst pipe, fire, certain storm damage, may be covered where the cause is a covered peril, minus your deductible. Flood and earthquake need their own policies. Your policy document is the deciding text; see the insurance section above.

Can you live in the house during foundation repair?
Usually, yes. Most foundation work, exterior piering, crack injection, interior waterproofing, is done while the home is occupied, and crews work outside or in the basement/crawl space. Expect noise, some dust, and rooms over interior pier locations needing to be cleared; water may be shut off briefly during parts of some jobs. The exceptions that can mean a few nights elsewhere are full house lifting and foundation replacement, and any job where your engineer says otherwise for your specific house.

How many piers will my house need?
Nobody honest can tell you from a photo. Piers go where the foundation has moved, spaced about 5–8 feet apart along the affected elevations: a settling corner might take 4–6, one side of a house 8–12, and most piering jobs land at 6–12 piers total. What determines it is measured settlement (floor elevations), the loads along each wall, and the soil, which is why the count should come from the diagnosis (ideally your engineer’s), and why two quotes with very different pier counts for the same house are telling you something important about at least one of them.

Sources

• Angi project data (2026)
• Fixr cost guide (2026)
• HomeGuide member-reported project costs
• Forbes Home cost research
• Modernize guides (2026), regional figures shown attributed in the regional section
• Woogoro guides (2026)