How Do You Repair Sinking Concrete Steps?
Concrete steps that have begun to sink pose a problem when it comes to repair. The reason the steps are sinking is that the subgrade beneath the steps has eroded. This can come from the influence of a high water table or from the subgrade not being properly prepared to withstand the weight of the steps. The problem is that most concrete steps weigh at least a ton, and you have to get underneath the steps to make repairs. It is a doable project, but one that requires the rental of a lifting machine and extreme caution. Step 1 Dig out all around the concrete steps with a shovel. You will want to create a trench that is a minimum of 12 inches wide and as deep as it takes to explose the bottom of the concrete steps. Step 2 Drill four holes into your concrete steps with a hammer drill. You will want to place two holes on each side of the steps. Imagine that the side of the concrete steps is divided into thirds; measure and mark where these points would be. On the two lines that divide the s
