How To Repair Cracks In Concrete Basement Walls

Fix concrete cracks in 8 steps step 1.

How to repair cracks in concrete basement walls. This basement has a crack running horizontally along the block concrete wall. Filling a small and moderate crack is necessary to prevent unhealthy conditions in the home. We repaired a foundation wall which had an 8 ft long crack that leaked water into the basement during periods of heavy rainfall. 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.

The only way to repair foundation wall cracks successfully is by the injection process. Manufacturers cast cinder block also known as concrete masonry units from pumice or clay and concrete to form a lightweight hollow block. Cracks in basement walls allow water to enter the basement which leads to mold and mildew growth. Some cracks are just annoyances while others are symptoms of a larger problem and with a little bit of know how you can tell the difference.

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 between the crack. There s also a stair step crack on each end of the horizontal crack and the wall is bowed in about 1 in. Before you reach for the phone take your time and inspect the crack you ve spotted. To permanently patch the crack we used an epoxy injection system from polygem called the liquid concrete.

The injection process fills the crack from top to bottom from inside to outside. Repair a foundation crack with an epoxy sealer photo geoffrey gross.