How to Fix a Basement Crack

Find out what is causing your basement to crack and how to fix the problem. Frost heave is the underlying issue; the soil outside your basement wall is getting too wet. When it freezes, it expands and puts pressure on the cement block wall, causing it to crack. It happens very slowly and will get worse every winter. The solution is to improve the drainage conditions outside your house by sloping the soil away from the walls and making sure your downspouts are depositing water at least three to six feet from the foundation.