How to repair cracked brick walls step-by-step

  1. Remove the cracked mortar from the brick wall. Remove the old cracked horizontal mortar from the joints using a raking bar. …
  2. Spray the brick wall. After all the mortar is removed, you’ll need to spray the wall with water. …
  3. Patch the joints with mortar. …
  4. Point the brick wall.

How do you repair cracks in an outside brick wall?


Quote from Youtube video: We grab a rigid putty knife and get to work. All I'm doing is getting the loose mortar. Out of the joint. So we can fill it back up the mortar patching product will not adhere.

When should I be concerned about cracks in a brick wall?





Small, thin vertical brick cracks can show up right after a home has been built and can be traced back to some initial foundation settlement. Though usually minor, these cracks should still be examined by a professional. Wide vertical brick cracks, on the other hand, are serious indicators of a foundation problem.

What do cracks in exterior brick mean?

Stair-Step Crack in Brick Exterior



Stair-step cracks in your exterior brick wall generally mean that your house foundation is settling and sinking into the ground. Other signs like cracks in the drywall, doors or windows that are starting to warp, or floors that are inclined to slopes, warrant a closer look.

Are cracks in brick walls normal?

Cracks in brick walls are not normal, nor should they be treated as such. Since these cracks aren’t a normal occurrence they tend to require more repair than some basic masonry work. For the most part, cracked brick walls can be attributed to failing building supports, or perhaps a sinking foundation.

How can you tell if a crack is structural?

As the name suggests, structural cracks occur because of poor construction sites, overloading or poor soil bearing.



Telltale signs of structural cracks in your foundation are:

  1. Stair-step cracks.
  2. Cracks on foundation slabs or beams.
  3. Vertical cracks that are wide at the bottom or top.
  4. Cracks measuring 1/8″ in width.





Do cracks in brick mean foundation problems?

Small brick cracks are common and do not indicate foundation problems. That’s because brick is naturally prone to expanding. If only a few bricks are affected by fractures, don’t worry about it. Deterioration and structural foundation damage is probably not a concern.

How do you fix large cracks in exterior walls?

Quote from the video:
Quote from Youtube video: Using a paint brush remove any dust prime the crack with plaster primer and leave it to dry overnight priming will seal the pores of the plaster.