Table of contents Step 1: Assess the extent of the damage Step 2: Remove the damaged concrete Step 3: Build a wood form (if needed) Step 4: Apply concrete bonding adhesive Step 5: Mix and apply the repair material Step 6: Sculpt and shape the repair material Step 7: Remove the wood form (if used) … Continue reading The Ultimate Guide to Repairing Concrete Steps: Step-by-Step Instructions for Fixing Crumbling Cement Stairs.