Foundation Crack Repair

Foundation cracks are always a bad sign of some problem with the foundation. However, different types of cracks indicate different problems. It is therefore important to study the type of cracks you have in your foundation in order to determine the best foundation crack repair solution.

Common Solutions

There are different cracks that can occur on foundation walls. These cracks are the result of different problems with the foundation. The foundation crack repair solution applied will therefore depend on the root cause of the crack and the type of crack you’re dealing with.

  • Diagonal cracks

These cracks are usually the result of the settlement or sinking of the foundation. In cases where the settlement is severe, piers will have to be installed in order to lift the foundation and ensure that it is level. This is done before the foundation cracks are sealed.

Helical piers as well as resistance piers are often used in different types of foundations. Concrete slab foundations often require the use of slab piers or slab-on-grade piers.

  • Vertical cracks

These cracks are some of the most common types of cracks in concrete slab foundations. They are often the result of lateral force on the wall resulting from hydrostatic pressure against the foundation wall.

These cracks can be repaired by using epoxy injections to seal the cracks. However, this should only be done after installing drain tile to reduce the hydrostatic pressure against the wall. Carbon fiber strips may also be used to strengthen the wall and provide resistance to pressure on the wall.

  • Stair cracks

These cracks occur on block or brick foundations. The cracks occur along the mortar lines, which are the weakest points in the foundation. These cracks often occur as a result of the settlement or sinking of the foundation.

These cracks can be repaired by the installation of piers to raise and stabilize the foundation. The cracks can then be filled out for aesthetic reasons.

  • Horizontal cracks

These are often a sign of a very serious problem with the foundation. They indicate that the wall is succumbing to pressure from hydrostatic pressure or temperature fluctuations. The cracks can be repaired by installing a drain tile to address the hydrostatic pressure issue.

The best method of repairing the cracks is by using carbon fiber strips. This will provide much needed support to the foundation wall and prevent further bowing of the foundation.

It is important to talk to a professional contractor and identify the best method for foundation crack repair.