Our house has a front porch that is concrete and has what looks like slate tiles embedded in the center. There is a small crack in the porch which is letting water into the small closet (inside the house) under the porch. Does anybody have any suggestions as to what we can do to fix this? TIA

One thing to try is to remove the cracked slate and repair the concrete crack below. You will have to chisel the crack wider so you can fill the gap with and expansive concrete. Then you can remortar the slate tile back into place.

I have a similar question. But, I do not have a leek... Slate is intact, but, the mortar is loose. How do I repair or do I have to replace the slate and mortar.