How To Fix A Cracked Concrete Basement Wall

First scrub the crack clean of any loose concrete paint or old filler using a wire brush.

How to fix a cracked concrete basement wall.

Before you start to repair the crack use any combination of a wire brush vacuum or power washer to remove any oil dirt or debris from the concrete wall surface and from inside the crack. The crack must be prepared so that the sealant will adhere to the crack surfaces. 10d finishing nails partway into the crack spaced 12 in. Repairing a foundation crack of this nature is similar to repairing other non structural cracks.

If you only had the stair step cracks you could go ahead with your basement finish work because that type of crack is a normal sign of settling. Fill a bucket with the mortar and then use a hand trowel to apply it. Injecting a typical wall crack with an epoxy or urethane resin is done under pressure pushing the material from the inside all the way to the outside. Do this by enlarging the crack using a concrete chisel and a hammer.

Stair step cracks may cause cracks in other walls above or a door to rub but they don t compromise the strength of the foundation. Use a wire brush check on amazon to brush both ends of the walls and then try a vacuum pump to suck out all debris in. Once that has been done you may want to start mixing your mortar check on amazon. Fill it with a caulk suitable for use on concrete.

If a crack between the wall and floor exceeds. The only way to repair foundation wall cracks successfully is by the injection process. Concrete wall crack repair in 8 steps step 1. The injection process fills the crack from top to bottom from inside to outside.