FAQ
How much does a professional foundation inspection cost?
An independent structural engineer inspection typically costs between $350 and $900, with national averages hovering around $550 to $600. Detailed reports with elevation mapping or forensic soil analyses can range from $1,200 to $2,500. Foundation repair sales companies often offer free visual evaluations, but independent engineers provide unbiased recommendations without selling repair services.
Does homeowners insurance cover foundation repair?
Standard HO-3 homeowners insurance policies generally exclude damage caused by earth movement, soil settling, hydrostatic pressure, and construction settlement. Insurance will only cover foundation damage if it results directly from a sudden, covered event—such as a catastrophic burst interior pipe, a vehicle impact, or an explosion.
What crack width indicates a serious structural issue?
Hairline cracks under 1/16 inch (1.5 millimeters) wide are typically non-structural curing marks. Cracks measuring 1/8 inch to 1/4 inch (3 to 6 millimeters) or wider—especially those that run horizontally, follow a diagonal stair-step path, or exhibit active displacement—signal structural settlement or hydrostatic wall failure that requires an expert evaluation.
What is the average cost to repair a damaged foundation?
National foundation repair costs average $5,175, with most homeowners spending between $2,200 and $8,200. Simple epoxy injections for non-structural cracks cost between $250 and $800, whereas installing hydraulic underpinning piers averages $1,000 to $3,000 per pier. Extensive structural retrofitting or full foundation replacement can exceed $15,000 to $25,000.
Can I fix a settling foundation with DIY expanding foam or epoxy?
DIY epoxy and poly foam injection kits effectively seal water out of static, non-structural cracks, but they provide zero structural support for a settling home. Injecting foam or epoxy into active settlement cracks will simply cause the material to shear when the foundation shifts again. True structural settlement requires professional underpinning down to stable bedrock or load-bearing soil strata.
