How To Repair Stone Foundation Walls

While concrete is poured in a single batch to create a solid foundation or basement wall you can see that this is not the case with stone.

How to repair stone foundation walls.

Although they can look very attractive the mortar joints are prone to weakening or cracking over time. If a space between foundation stones is wider than 3 inches or so fill it with mortar and then press a small rock firmly into the mortar to fill the space. In order to repair your stone foundation you need to tackle the problem from the both inside and the outside of your home. A professional foundation crew will construct a one sided concrete form inside the old basement perimeter and pour a new concrete wall.

Stone foundation walls are common on many older homes. Step 2 assess the damage. Modern concrete foundations have helped minimize problems with foundations but if you live in a home that 100 years old or older you could have a stone foundation. To replace large stones that have fallen from the wall lay down a thick bed of mortar and set the stone in place.

Pack more mortar around the stone. This causes water leaks that lead to further decay of the mortar. Eventually you can be left with loose and missing stones or bulging and collapsing foundation walls. Start with the exterior.

Your problem is most likely that stones have come loose and shifted out of place. All of these things can take their toll on basement walls made of masonry such as natural stone. Afterward a good masonry sealer will protect them against moisture and damage.