Foundation Underpinning
Helical or push piers driven beneath an existing foundation to transfer load to stable soil and arrest settlement.
Quick answer
Foundation Underpinning: Helical or push piers driven beneath an existing foundation to transfer load to stable soil and arrest settlement. Typical cost: $1,500–$3,500 per pier; $10,000–$30,000+ for a typical job..
Why it matters
Underpinning is the gold-standard fix for true foundation settlement — engineered, warrantied, and required disclosure on resale.
Typical cost
$1,500–$3,500 per pier; $10,000–$30,000+ for a typical job.
Pros
- • Permanent structural fix
- • Transferable warranty
Cons
- • Major cost
- • Required disclosure on home sale
- • Lawn disturbance
Common uses
- • Settling additions, garages, full perimeter foundations
Alternatives
Mudjacking (for slabs)Polyurethane foam lifting
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Frequently asked questions
- How long does foundation underpinning last?
- Helical piers carry lifetime transferable warranties from major manufacturers.
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Estimates and guidance are educational. Always confirm with a licensed local professional before making decisions.