How to Patch a Leaky Basement Wall

The great thing about having a basement is having the ability to store those extra boxes or to turn it into a place to hold your pool table and to have fun with. The bad thing about these rooms is that they often have problems with leaks. The walls might have a leak in them during any season or any time of the year. This is often caused because the room was not design properly or they used the wrong materials. Learn how to patch up those leaks holes.

What You’ll Need

  1. Small brush
  2. Compressed air
  3. Hydraulic cement

What To Do

Find where the leaks are on the walls. In most cases they are all going to be in one area – but they will have started in a completely different part. You need to carefully follow the moisture along the wall to see where it is coming from. Also look for the large amounts of mold that is growing. The problem could be caused by plumbing problems or because of natural causes.

Use a chisel and hammer and open up any cracks in the wall. Look closely at the mortar in between the cement blocks for holes. Make sure that the chisel leaves in the cracks are larger than the ones that are outside.

Now use a small brush and remove the debris inside of the holes. It helps to use a can of compressed air to make sure that you have gotten all of the debris out.

Buy hydraulic cement from the local hardware store and see what type of material is going to be best to use for the project that you have. The employees should be able to offer you detailed information on how to use it.

Combine the hydraulic cement by following the directions. Push it into the holes as far as it will go. Fill each hole with the cement and allow it to dry. Make sure that the leaks have stopped a few days later.