Filling Small Holes In Concrete Block Walls

If your aim is to make the wall look better a smooth surface is also easier to paint.

Filling small holes in concrete block walls.

How to fill holes in a cinder block wall. You ll want to fill so the foam is more or less even with the inside of the block. Patching such holes is a necessary part of keeping your concrete foundation wall in good repair. If you know how to fill small cracks in concrete you ll restore your concrete to a smooth finish.

I might fill most of the void with spray foam. As moisture fills the holes and the temperature changes the. The stuff expands pretty much so start at about a 50 fill and see where that gets you. Using a cold chisel and a 3 pound sledgehammer undercut the hole by making the pop out wider at the bottom than at the top.

Then use one of the concrete patching. Filling small cracks in concrete keeps them from turning into big holes. Pop outs are small conical shape chunks of concrete that have popped out and left a hole behind. Clean the hole with a stiff fiber or wire brush.

Cinder blocks can still be damaged by time and severe impact however. Before attempting to fill a hole clear out loose concrete and other debris. Common spackling products do not adhere to the concrete and are not suitable for repairing holes or cracks in your concrete walls. This technique will work for cracks smaller than 3 8 inch wide in the sidewalk driveway garage floor basement or steps.

After hearing that i seriously considered just gluing a piece of plywood over it and calling it a day. Holes in concrete walls are more likely the result of drilling into the wall to secure shelving or to hang other items on the wall. Holes in a cinder block wall not only are unsightly but also over time will grow larger. For this project you ll need.

Then mix the mortar fill in the hole and level it to blend it in with the surrounding structure. I m assuming your wall is made of concrete blocks also called cinder or cement blocks. The guys at home depot had a lot of fun lamenting the fact that the hole existed to begin with and then suggested that i build a mold on one side of the wall and fill it in with a pour of concrete. Treat holes as soon as you find them so you can prevent water and rodents from further damaging the concrete and getting into your home.