Smart Foundation Repair Cost Planning, From a Crack to Piers
Foundation repair cost climbs fast once piers enter: about 10 piers at $1,000–$3,000 each. Here is how each rung is priced.
Table of Contents
Foundation repair cost by scope, from a crack to piers
Foundation repair cost depends on the size of the job, so this guide sorts prices into six rungs, from a crack seal to piers.
Find your rung fast
- Found a crack: start at rung 1.
- Water keeps returning: rung 2.
- Sinking floors or bowing walls: rungs 3 to 5.
- Holding a quote: jump to the pier math and quote check.
How this guide differs from our main cost guide
Our foundation repair cost ranges and who to call first guide covers the overall range and the engineer-or-contractor decision. This guide shows how each rung is priced and what pushes a job up to the next. Every figure is a published national estimate, not a quote for your home.
ℹ️ Safety Note: Judging structural damage and any sealing, jacking, pier, or excavation work near a foundation carries risk of injury and major damage. This article is general information, not an engineering evaluation or insurance advice. Hire a licensed structural engineer or licensed contractor, follow local code and permit requirements, and read your own contract and policy.
Foundation repair cost at a glance: the six-rung scope ladder
Foundation repair cost runs from about $250 for a sealed crack to $20,000 or more for lifting, and Angi’s cost guide puts most projects between $2,225 and $8,133.
Six rungs, two sources, one table
| Rung | Angi | Fixr | Key Detail |
|---|---|---|---|
| 1. Crack sealing or injection | $250–$800 | $200–$1,000 | Stable, non-structural cracks |
| 2. Leaks and drainage | Leaks $2,000–$7,000; drainage system $2,800–$6,500 | Leaks $2,000–$10,000 | Water control comes before structure |
| 3. Slab leveling (mud- or slab-jacking) | $500–$1,300 | $500–$1,900 | Levels a sunken slab; Fixr calls it non-permanent |
| 4. Wall reinforcement | Bowing walls $4,000–$12,000; strips $4,000–$12,000 | Strips $4,000–$12,000; tiebacks $5,000–$15,000 | Used when walls move inward |
| 5. Piers and underpinning | $1,000–$3,000 per pier; $10,000–$30,000 typical job | $10,000–$40,000 | For sinking or settling foundations |
| 6. Lifting and replacement | Lifting $20,000–$23,000; replacement $20,000–$100,000 | Lifting $20,000–$30,000 | Severe damage only |
📊 Tested / Spec: Sourced, not tested by us. Angi’s average is $5,174 (updated August 3, 2026); Fixr’s cost guide gives $5,200 (updated January 27, 2026). The rung grouping is ours; each figure is the source’s.
What moves a job up a rung
Jobs climb when the cause keeps working. Fixr calls slab jacking, injection, and surface sealing non-permanent, noting that jacking does not address the underlying issue, and Angi notes that many underpinning jobs start with poor drainage. That is why a diagnosis comes before a rung.
Crack, leak and drainage costs: the cheapest rungs
Foundation crack repair typically costs $250 to $800 according to Angi and $200 to $1,000 according to Fixr. Those prices cover sealing or injecting a stable crack. A growing, horizontal, or leaking crack needs a diagnosis first.
Reading crack width before you pay
This Old House’s crack guide says its structural engineer reads hairline cracks under 1/8 inch as curing shrinkage and cracks 1/8 inch or wider as worth a closer look. Width thresholds vary by source, so see how to read crack width.
What leaks and drainage cost
Angi puts leak repair at $2,000 to $7,000 and drainage systems at $2,800 to $6,500. Our regrading guide cites about $1,000 to $3,000 for a whole house.
✅ Do This: If a crack is horizontal, growing, or leaking, hire a licensed structural engineer for a written diagnosis before anyone seals it.
Slab leveling and wall reinforcement costs
Rungs 3 and 4 cost more than sealing and fix different problems.
Slab jacking: leveling a sunken slab
Angi lists slab jacking at $500 to $1,300 and Fixr at $500 to $1,900. Fixr calls it an affordable fix for sunken slabs that is not permanent, because it leaves the underlying issue in place.
Carbon fiber strips and tiebacks
Fixr prices carbon fiber strips at $4,000 to $12,000 and tiebacks at $5,000 to $15,000, matching Angi’s $4,000 to $12,000 for strips. Our bowing-wall cost guide covers the full breakdown.
⚠️ Watch Out: Fixr calls both fixes temporary and advises pairing them with waterproofing, so ask a licensed structural engineer what is pushing the wall before approving either.
Foundation pier cost: price per pier times pier count
Foundation pier cost is price per pier times the number of piers, and Angi’s underpinning guide puts a typical job at $10,000 to $30,000.
Price per pier: concrete, push and helical
Angi’s figures are about $1,000 for concrete piers, $2,000 for push (steel) piers, and $3,000 for helical piers.
How many piers, and what the totals look like
Angi says contractors use around 10 piers on an average home, and 15 or more where several areas need support.
| Piers | At $1,000 | At $2,000 (push) | At $3,000 (helical) | Key Detail |
|---|---|---|---|---|
| 1 | $1,000 | $2,000 | $3,000 | Single pier under a pier-and-beam home |
| 4 | $4,000 | $8,000 | $12,000 | Illustrative small job |
| 10 | $10,000 | $20,000 | $30,000 | Angi’s average pier count |
| 15 | $15,000 | $30,000 | $45,000 | Several areas need support |
Arithmetic is ours (count × price). The 1-, 10- and 15-pier rows match totals Angi publishes.
🔍 Why It Works: Angi puts labor at about 80% of an underpinning bill, so each extra pier or harder access adds mostly labor.
✅ Do This: Ask who set the pier count and whether the per-pier price holds at any depth, then have a licensed structural engineer confirm the count.
House lifting, replacement and costs outside the quote
The top rung is rare, and several costs sit outside the repair price.
When the price jumps to $20,000 or more
Angi puts house lifting at $20,000 to $23,000 and full replacement at $20,000 to $100,000, with replacement more likely landing between $50,000 and $100,000.
Reports, permits and surprises outside the repair price
Angi lists a structural report at $300 to $1,000, a soil report at $500 to $3,000, and permits at $75 to $150, rising to $200 to $1,000 for underpinning. Fixr warns that hidden obstacles can add thousands of dollars.
🔍 Why It Works: Soil matters because expansive clay swells when wet and shrinks when dry, and foundations not designed for that movement crack, according to HUD’s housing research.
✅ Do This: Ask a licensed structural engineer whether a soil report is needed for your problem, and ask your local building department who pulls the permit.
How to check that a quote matches your scope
A quote fits when its rung matches the evidence behind it.
Does the diagnosis support the rung?
If a quote jumps to piers, wall straps, or lifting, ask what finding supports it: an engineer’s report, a measured crack history, or documented movement.
Questions to put in writing
- Which rung is this, and what finding supports it?
- How many piers or strips, and what does each cost?
- What is excluded: permits, reports, build-back?
- Is the warranty written, and does it transfer if you sell?
✅ Do This: Have a licensed structural engineer review any large quote, and confirm the contractor’s license and insurance with your state before signing.
Foundation repair cost questions, answered quickly
1. How much does foundation underpinning cost?
Foundation underpinning typically costs $10,000 to $30,000 according to Angi, and Fixr’s range runs to $40,000. Get an engineer’s report first.
2. How many piers does a house need?
Angi says contractors use around 10 piers on an average home and 15 or more where several areas need support. Have a licensed structural engineer confirm the count.
3. How much does each foundation pier cost?
Foundation piers run about $1,000 for concrete, $2,000 for push, and $3,000 for helical per Angi, so the pier count drives the total.
4. How much does it cost to seal a foundation crack?
Foundation crack repair costs $250 to $800 according to Angi and $200 to $1,000 according to Fixr for a stable crack. Have a licensed engineer check any growing crack first.
5. Is mudjacking cheaper than foundation piers?
Mud- or slab-jacking runs $500 to $1,300 per Angi against $1,000 to $3,000 per pier, but Fixr says jacking is not permanent.
6. How much do carbon fiber straps cost?
Carbon fiber foundation strips cost $4,000 to $12,000 according to both Angi and Fixr, and Fixr calls them a temporary fix for bowing walls. Ask a licensed structural engineer what is pushing the wall.
7. Are push piers cheaper than helical piers?
Angi lists push piers around $2,000 each and helical piers around $3,000, so push piers usually cost less per pier.
8. How much does house lifting cost?
House lifting costs $20,000 to $23,000 according to Angi and $20,000 to $30,000 according to Fixr, usually only for severe damage. Hire a licensed structural engineer to confirm it is needed.
9. Is foundation repair cheaper than replacement?
Yes, typical repair costs roughly $2,225 to $8,133 per Angi, while replacement runs $20,000 to $100,000. Have a licensed structural engineer compare options.
10. What does a foundation repair quote usually leave out?
Reports and permits often sit outside the repair price: Angi lists structural reports at $300 to $1,000 and soil reports at $500 to $3,000.
Your next step: match the rung before you get quotes
Pick the rung that matches your evidence: a stable crack, water, a sinking slab, a moving wall, or settling. Then use the quote worksheet and crack log in our foundation repair cost guide to compare written bids for the same scope. Measure before you spend, and hire a licensed structural engineer first if a crack is horizontal, growing, or leaking.
