My side wall is old and now cracked,almost a small gap about 2" wide. The wall is 4ft high and so is the crack. Would I get away with using one of those tubs of ready made cement or concrete? I cant afford a bagfull. Thanks.
Since the wall is only 4' high, I guess it's a garden wall. If you're stuck for cash, Kat, I won't go into all the possibilities to put it right.
A bag of "Ready-Mixed" sand & cement would probably be better value than a tub.