Expert: Bruce E. Johnson - 4/2/2009

Question
I need to fix cracks in my brick steps and want to know how to remove the sandstone top cap so I can work easier.

Answer
Hi John, you have to be very careful with sandstone or it will break.  I would try to repair the brick without taking the cap off.  If you absolutely have to take the cap off and there is a mortar joint between the cap and the brick you can rent a 14" concrete cut saw and cut the mortar joint between the brick and the cap.  A 6-7"deep cut along the entire width of the step may be enough to remove the bond between the two.  Once you have made a deep horizontal cut beneath the sandstone you can take some wooden wedges and very carefully tap them in, in sequence.  Don't force them and only tap them one at a time down the line and then repeat the process until the sandstone breaks loose.  An alternative to the individual wedges would be to rip a two by four (the length of your step) on a 45 degree bevel and starting at one end slowly tap it in.  You get the idea I think.  Don't force it, just light tapping  and eventually the stone should pop up.  I hope this information helps, feel free to write again regarding this or other matters, sincerely bruce e johnson..bejohnsonconsulting.com