Foundation Repair Cost Calculator
Estimate common foundation repairs from scope — crack injection, pier underpinning, or slab leveling — plus access difficulty and optional engineering or drainage work. Click any i for detail.
Your repair scope
Repair type
i
Repair type
Crack sealing suits non-structural hairlines. Piers address settlement. Slab leveling (mudjack/poly) lifts sunken concrete floors or walks attached to the house. |
|
|---|---|
Quantity
i
Quantity
Linear feet of crack, number of piers, or square feet of slab — the unit follows repair type. |
|
Site access
i
Site access
Finished basements, tight crawlspaces, and landscaping obstacles slow production and raise labor. |
|
Your state
i
Your state
Scales midpoints for typical state-level labor and material costs versus the U.S. average — not an on-site bid. |
Options
How to use this calculator
- Choose crack sealing, pier underpinning, or slab leveling.
- Enter linear feet, pier count, or slab square feet.
- Set access difficulty and optional engineer/drainage allowances.
- Pick your state and review the itemized midpoint.
Results explained
Each scope uses a different unit price. The main line is split into labor (~60%) and materials (~40%). Access multiplies the repair lines; engineer and exterior drain allowances are flat add-ons when checked.
Quick reference: foundation repair midpoints
U.S.-average educational midpoints before access and state scaling. Serious structural failure can exceed these bands.
| Scope | Unit | Midpoint | Notes |
|---|---|---|---|
| Crack injection | per lf | $45 | Epoxy/urethane sealing |
| Pier / underpinning | per pier | $1,450 | Steel or helical typical |
| Slab leveling | per sq ft | $8 | Mudjack or poly lift |
| Engineer allowance | flat | $850 | When a report is needed |
Exterior waterproof/drain package in this model ≈ $2,800. Not a full basement remodel.
How the estimate is built
Repair midpoint ≈ unit rate × quantity × access multiplier × state index, split 60/40 labor/materials. Optional engineer (~$850) and exterior drain (~$2,800) are flat allowances. Band ≈ 75%–140% because soils and methods vary widely.
Example scenario
Forty linear feet of crack injection with typical access at U.S. average is about $45 × 40 × 1.12 ≈ $2,016 (~$1,210 labor + ~$806 materials).
FAQ
Is this an engineering diagnosis?
No. Persistent cracks, sticking doors, or sloping floors need a structural engineer or foundation specialist on site.
Helical vs concrete piers?
Both sit near the pier midpoint here; helical often wins in tight access, while concrete piers can suit deeper bearing — your bid will specify.
Does insurance cover this?
Usually not for settlement or wear. Confirm with your carrier; this tool is not an insurance estimate.