What you will notice
Brick cracks can be small and slow, so they are easy to walk past. These are the ones to look for on a walk around the house:
Zigzag cracks
That step down through the mortar from a corner or a window.
Cracks wider at the top
Than at the bottom, often near one corner of the house.
Cracks over windows and doors
Running up from the corners of the opening.
Sandy, crumbling mortar
That you can scrape out with a key.
Loose or missing bricks
Often near the ground, under windows, or at the chimney.
A chimney that leans
Or leaves a gap where it meets the house.
Bricks that flake or pop
Their faces, called spalling.
Cracks that match the basement
A crack outside that lines up with one inside the basement.