How Do You Repair a Rock Retaining Wall

To repair the damage, remove stones from the damaged area and at least two stones wider. Dig a 6- to 8-inch trench where you have removed the stones. Fill the trench with gravel a little at a time and tamp it as you go. Rebuild the section of wall.

How much does it cost to repair a stone retaining wall?

MaterialAverage Repair Costs (Labor Included)Stone$250 – $1,500

What type of cement is used for stone walls?

For a garden wall, mortar mix is a good choice. This is a blend of Type N masonry cement and graded sand. It has good adhesive properties and workability. If you’re building a retaining wall, use a blended mason mix, which includes the heavy-duty mortar type S masonry cement and graded sand.