At the end of my garden I have a five foot high breeze-block wall. One section of the wall is about ten feet wide. One end the wall meets a brick-built outhouse. The mortar where the wall meets the out-house has all but gone. Consequently, the wall can be rocked back and forth (an inch or so) by hand. As I have small children I need to secure the wall back to the out-house to stop it doing this. I presume removing the old mortar and re-mortaring is one solution - can anyone recommend a better solution - some sort of brace perhaps?
Any help appreciated.