We had cracks like that on our front porch. We fixed the structural problem, which were due to water pressure underground, then we got the mason out who removed sections of brick and relaid them. No it wasn't cheap, but we have a porch that looks as good as the day it was completed.

Thanks lido, that's what I'm thinking too. Did you have any problem matching the brick? If the whole ones will come out whole, we can reuse them, but odds are, at least 1/4 of them will break coming out, and there are already some there that are broken.

The brick mortor lines can be repointed. They need to be ground out to a minimum depth of 1/2 to 1 inch and mortor mixed to match the color. Wet the old brick joints and that will show you the approximate color that the new mortor color needs to be. The gap should be wet and then the mortor forced to fill the gap. Its done all the time by qualified masons. Nomally a mix of 1 part Portland to 3 parts builders sand. Depending on the color you would use white or gray mortor and sand. I would only replace the bricks if the crack width is very wide. New bricks most likely will not color match the present bricks so the whole repaired area will stand out.

Another suggestion is to make the crack line an expansion contraction line and only change out those bricks where the crack does not fall on the vertical crack line. That way any future movement would not result in the crack opening up again. The crack line should be ground out in a vertical line 1/2 deep and filled with a mortar caulk.

Thank you stash-hdy, that sounds like a good idea.