Filling Small Holes In Concrete Block Walls

Common spackling products do not adhere to the concrete and are not suitable for repairing holes or cracks in your concrete walls.

Filling small holes in concrete block walls.

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. 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. Before attempting to fill a hole clear out loose concrete and other debris. 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.

Pop outs are small conical shape chunks of concrete that have popped out and left a hole behind. Then mix the mortar fill in the hole and level it to blend it in with the surrounding structure. Clean the hole with a stiff fiber or wire brush. This technique will work for cracks smaller than 3 8 inch wide in the sidewalk driveway garage floor basement or steps.

You ll want to fill so the foam is more or less even with the inside of the block. I might fill most of the void with spray foam. For this project you ll need. Holes in a cinder block wall not only are unsightly but also over time will grow larger.

The stuff expands pretty much so start at about a 50 fill and see where that gets you. After hearing that i seriously considered just gluing a piece of plywood over it and calling it a day. As moisture fills the holes and the temperature changes the. I m assuming your wall is made of concrete blocks also called cinder or cement blocks.

Cinder block is a useful construction material since it is normally lighter than solid concrete and yet still durable enough to last under normal stress conditions. How to fill holes in a cinder block wall. Patching such holes is a necessary part of keeping your concrete foundation wall in good repair. Filling small cracks in concrete keeps them from turning into big holes.

If your aim is to make the wall look better a smooth surface is also easier to paint. Then use one of the concrete patching. To create a smooth surface when these items are removed the hole must be filled. 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.