2026 cost reference
Underpinning totals only make sense with quantities
A five-figure foundation quote should identify the support system and the number and location of underpinning points. Without those quantities, two proposals cannot be compared fairly.
Stabilization and lifting are different promises
Some underpinning scopes are designed primarily to stop further movement; others include an attempt to recover elevation. The contract should state the objective, tolerances and what happens if additional lift is unsafe or not achievable.
Engineering and access can change the scope
Load, soil, footing condition, excavation access and permit requirements can affect the selected system. For substantial settlement, an independent structural engineer can provide a repair scope before contractor bids are compared.
The calculator uses the same reviewed source ranges shown on this page.
Related foundation cost guides
These figures may be quoted with attribution and a link. Review date: August 29, 2026.