Hi I recently just had a patio done as part of that they removed a step and when they did the cement used to bridge the gap between the door threshold and step crumbled that wasnt a problem the problem is in there enthusiasm to fix it they cut the dpm back to the door so exposing around 20-30mm of brick that i now need to seal and fix so water doesnt sneak in and cause damp 1st pic of what it used to be like 2nd what it is now