
What to look for
Flaking, scaling, or crumbling concrete surfaces (spalling), especially on exposed steps, slabs, and the top of the foundation. Widening cracks that grow each winter, heaved or lifted slabs, sidewalks, and garage floors, doors and gaps that change with the seasons, and frost-lifted stoops or piers pulling away from the house. Inside, horizontal cracking and inward movement driven by frost pressure on saturated soil.
