whats the cost to repair cracked foundation
1 Repair for cracks: Most crack repairs typically cost $300 to $500 each, but could vary depending on the size of the cracks and how many cracks need to be repaired.2  Reinforcing a foundation with a crawlspace by adding support piers: $400 to $2,500. 3  Underpinning: $900 to $1,400 per pier. Repair for cracks: Most crack repairs typically cost $300 to $500 each, but could vary depending on the size of the cracks and how many cracks need to be repaired.