Did you notice displaced bricks directly above your house windows or doors? Are there any mortar cracks between bricks, running on an angle from the window and door upper corners? https://g.page/MasonryChicago?share Chances are, the steel lintels corroded and are expending causing brick to shift. There’s no simple solution for this, you can’t just patch cracks because this will cause even more destruction – you have to replace corroding lintels as soon as possible. The more you wait the bigger damage will occur, and besides replacing lintels, you may end up with rebuilding section of the wall. Click the link below and contact us for a free, non-obligatory evaluation of corroding lintels.