15-20 Minute Assessment

Insulated Concrete Form (ICF) Foundations

ICFs are made of hard plastic foam that provides insulation. The forms lock together, and concrete is poured into the space between them. They’re strengthened with steel bars.

ICFs aren’t a food source for insects. However, insects can burrow into them to reach wood that is. Also, water can get trapped behind the forms and cause hard-to-detect problems.


Every spring

Repair and replacement costs

Typical Costs

  • Repair minor cracks: $250 – $800
  • Repair major issue: $2,000 – $7,500+
  • Consult structural engineer: $300 – $600

Life span


75 years

Steps to Assess Your Concrete Foundation


Step 1: Begin inside your home. Check for cracks in the walls, slanted floors, and windows or doors that don’t open properly. These issues could be signs of a shifting foundation.


Step 2: Look for standing water around your home or in your basement. That could indicate a drainage problem. Staining on the forms could mean water is trapped behind them. If you notice staining or standing water that doesn’t drain in a few days, contact a pro.


Step 3: Check for any forms that look out of place, cracked, or crooked. These could be signs of foundation movement. If you notice these problems, get a professional inspection.


Step 4: Remove anything growing on your foundation. Moss, lichen, mold, and vines can damage ICFs.


Step 5: Check for signs of termites, including living or dead termites, damaged wood inside or outside of your home, or small mounds of sawdust. If you find these signs, get a professional inspection. Either way, protect your ICF by getting a termite inspection every couple of years.