Foundation Repair Cost Estimator
Estimate your foundation repair costs based on damage type, severity, home size, and regional labor factors.
Fill in the fields above and click Calculate.
Formula
For area-based repairs:
Base Cost = Affected Area (sq ft) × Base Rate ($/sq ft)
For pier-based repairs:
Base Cost = Number of Piers × Cost per Pier ($1,400)
Then:
Adjusted Cost = Base Cost × Severity Multiplier × Access Multiplier × Regional Labor Index
Total = Adjusted Cost + Permit Fee (if selected)
Range = Total × 0.85 to Total × 1.15
Base Rates Used:
- Minor Crack Sealing: $3.50/sq ft
- Major Crack Repair: $12.00/sq ft
- Steel Pier / Underpinning: $1,400/pier
- Slab Jacking / Mudjacking: $6.00/sq ft
- Bowing Wall Anchors: $5.50/sq ft
- Interior Waterproofing: $9.00/sq ft
- Full Foundation Replacement: $55.00/sq ft
Assumptions & References
- Base rates reflect 2023–2024 US national average contractor pricing (HomeAdvisor, Angi, RSMeans data).
- Severity multipliers: Mild ×1.0, Moderate ×1.35, Severe ×1.75 — reflecting additional labor hours and materials for progressive damage.
- Access difficulty adds 0–30% to account for equipment mobilization, hand-digging, and landscaping restoration.
- Regional labor index: Low (0.85) = rural/South/Midwest; Average (1.00) = suburban US; High (1.25) = Northeast/West Coast/major metros.
- Permit fee of $650 is a flat US average; actual fees range from $200–$1,500 depending on municipality.
- ±15% contingency range accounts for hidden damage discovered during repair, material price fluctuations, and contractor variability.
- Pier count for underpinning is typically 1 pier per 6–8 linear feet of affected wall; consult a structural engineer.
- This tool does not account for soil testing, engineering reports (~$500–$2,000), or landscaping restoration costs.
- Always obtain a professional structural inspection before committing to any repair method.