FoundationCost.ai

Foundation Repair Cost Calculator & Quote Checker

Estimate foundation repair costs, compare contractor quotes, and spot suspicious line items before you sign.

Typical repairs$1,800-$14,000
Major settlement$14,000-$35,000+
Quote signalsScope, warranty, piers, drainage
Best next stepCompare diagnosis before price

Free calculator

Estimate Your Foundation Repair Cost

Enter what you know. The range updates instantly and stays conservative.

Low
$5,000
Typical
$14,000
High
$35,000
ConfidenceLow

Likely repair methods

  • Steel push piers
  • Helical piers
  • Soil stabilization
  • Drainage improvements

Main cost drivers

  • Moderate visible severity
  • normal access around the affected area
  • unknown foundation type
  • 2,000 sq ft home size

Questions to ask

  • What failure mode are you diagnosing, and what evidence supports it?
  • Does this quote include permits, engineering, cleanup, and warranty terms?
  • Which line items are required now, and which are optional upgrades?
  • How will drainage, grading, or plumbing leaks be ruled out before repair?
  • Can you show comparable local projects with similar foundation conditions?

AI quote checker

Paste a Contractor Quote

Get a structured review of price signals, missing details, red flags, and questions to ask before signing.

Your quote review appears here

The checker looks for vague scopes, missing warranty terms, unclear pier counts, drainage gaps, permit ambiguity, and pricing that needs explanation.

Second opinion

Get a Quote Review Checklist

Send the basic project details and quote text. The form is built to work before you add a mail provider, and can email leads once `RESEND_API_KEY` and `LEAD_TO_EMAIL` are set.

Good for high-price pier, waterproofing, slab, and crawl space quotes.
Avoids collecting payment or sensitive documents on the first pass.

Average Foundation Repair Costs

Repair typeLowTypicalHigh
Hairline crack sealing$500$1,800$5,000
Foundation leak repair$1,200$4,500$12,000
Slab foundation repair$2,500$8,500$20,000
Pier and beam repair$3,000$9,500$25,000
Settlement repair with piers$5,000$14,000$35,000
Bowing wall stabilization$4,000$12,000$30,000

Common Repair Methods

Crack injection for non-moving concrete cracks

A contractor should explain why this method fits the observed movement, soil conditions, drainage, and load path before asking for a signature.

Steel or helical piers for settlement

A contractor should explain why this method fits the observed movement, soil conditions, drainage, and load path before asking for a signature.

Wall anchors or straps for bowing walls

A contractor should explain why this method fits the observed movement, soil conditions, drainage, and load path before asking for a signature.

Waterproofing and drainage when water is part of the failure

A contractor should explain why this method fits the observed movement, soil conditions, drainage, and load path before asking for a signature.

Warning Signs to Take Seriously

Doors or windows that suddenly stick
Diagonal cracks near corners of openings
Uneven floors or visible separation at trim
Water intrusion near foundation walls
Gaps between brick, siding, or exterior trim

Questions to Ask a Contractor

What is the exact cause of the movement or water intrusion?

Ask for a plain-language answer and make sure the final contract matches what you were told verbally.

Is an engineer letter included or recommended?

Ask for a plain-language answer and make sure the final contract matches what you were told verbally.

How many piers, anchors, drains, or injection points are included?

Ask for a plain-language answer and make sure the final contract matches what you were told verbally.

What warranty is transferable, and what can void it?

Ask for a plain-language answer and make sure the final contract matches what you were told verbally.

Does the price include permits, utility marking, cleanup, and landscape restoration?

Ask for a plain-language answer and make sure the final contract matches what you were told verbally.

FAQ

How accurate is an online foundation repair cost calculator?

It can provide a planning range, but final pricing depends on soil conditions, access, structural movement, drainage, permits, and the contractor's diagnosis.

Should I get more than one foundation repair quote?

Yes. Compare the diagnosis, method, warranty, pier count or material quantities, and exclusions. The cheapest quote is not always the safest scope.

When should I call a structural engineer?

Call an engineer when there is active movement, large or horizontal cracking, bowing walls, major water intrusion, or conflicting contractor recommendations.

Does homeowners insurance cover foundation repair?

Often it does not cover settlement or long-term drainage issues, but sudden covered events may be different. Ask your insurer and review the policy language.

Related Guides

Disclaimer

This tool provides educational cost estimates only. It is not a structural engineering report, legal advice, or a substitute for an inspection by a licensed professional.