Don't Let The Cracks Scare You: 4 Steps To Repairing The Small Cracks You See In Your Foundation

Now that you're a new home owner, you're going to want to inspect your home at least once every six months. During your inspection, you may notice small cracks developing in your brick foundation. Minor cracks are nothing to be too concerned about – although they will need to be repaired. As your home ages, you may begin to notice numerous cracks and chips. With proper care, you can prevent further damage and maintain the structural stability of your basement. With these easy-to-follow instructions, you can repair the cracks in your brick or block basement.

Remove the Loose Mortar

The first thing you'll need to do is remove all the loose mortar around the bricks. Loose mortar will prevent you from placing fresh mortar, so be sure to remove as much as possible.

Supplies You'll Need

  • Safety goggles

  • Heavy-duty gloves

  • Slim chisel

  • Hammer

  • Small whisk broom


  1. Put your safety goggles and gloves on.

  2. Place your chisel up against the mortar and carefully hit the end of it with your hammer.

  3. Continue chipping away with the chisel until all the loose mortar has been removed.

  4. Use the whisk broom to sweep away all the loose mortar dust that might be left on the bricks.

Prepare Fresh Mortar

Now that you have the joints cleaned, you'll be ready to prepare the fresh mortar. You can make your own mortar using masonry cement and fine sand. Both of these items are available at most home improvement centers.

Supplies You'll Need

  • Wheelbarrow
  • Water

  • Masonry cement

  • Fine sand

  • Small hand shovel


  1. Place three parts masonry cement and one part fine sand in your wheelbarrow.

  2. Add a small amount of water and begin mixing with your hand shovel.

  3. Continue adding water until the mixture is the consistency of thick mud.

  4. Your mortar is now ready to use.

Apply the Mortar

This part of the project is going to get messy, so make sure you have some old clothes on. You're going to need your work gloves and a pie-shaped trowel.


  1. Place your trowel in wheelbarrow and fill the tip with mortar.

  2. Beginning at the bottom of the wall, press the mortar into the vertical joints.

  3. Use the edge of the trowel to remove excess mortar and smooth the surface.

  4. Continue working until all the vertical joints are filled with new mortar.

  5. Repeat the process to fill the horizontal joints.

  6. Allow the mortar to dry for about a week.

Seal the Joints

Applying the waterproof sealant is the final step in repairing your brick or block foundation. This is a relatively easy project. Be sure to apply the sealant on a clear day so that it can dry properly.

Supplies You'll Need

  • Waterproof sealant

  • Paint rollers

  • Paint pan


  1. Pour the sealant in your paint pan.

  2. Use your roller to apply a layer of sealant to the entire area.

  3. Be sure to cover the brick and the mortar.

  4. Allow the sealant to dry for about 6-8 hours.

  5. Apply a second coat of sealant and allow to dry overnight.

  6. Reapply sealant once a year to provide continuous protection.

Foundation repairs don't have to be frightening. Even if you're a first-time home owner, you can still take care of the repairs to your foundation. Use these simple instructions to keep your foundation in tip-top shape. If you're not confident to repair the cracks on your own, or if you have cracks that are too large for you to repair, get in touch with a construction company like Reynolds Construction for an estimate to have the cracks professionally repaired.

About Me

Everyone Should Have a Bathroom They Love

I once read that the average person spend about 1.5 years of their life in the bathroom, although I think I will spend much more time than that in my life! I enjoy taking long, hot baths. After I recently moved into a new home, I quickly realized that I didn't find bath time as relaxing when I spent it in a bathroom I didn't love. I soon decided to renovate the bathroom, and that was the best decision I made in years. I added his and hers sinks and the large bath tub I had always wanted! I want to inspire others to look at how their home affects their mood and stress levels. No one should have a bathroom they don't love or live in a home they don't love. I plan to share my home remodeling tips on my new blog, so come back for remodeling inspiration!