I've written with this request before but I got very few responses, although I did get a lot of emails from neighbors with similar issues. I have an old home (100 + years) with a sandstone foundation. I have a problem with water seeping in through my basement walls. My home and the neighboring one are very close (there's only 3-4 feet between our two homes) and the ground is old brick with moss where the mortar used to be (I've currently got a plastic tarp down to minimize the water seepage). I want to repair this issue but looking at the different options can be a bit overwhelming and I don't know who to trust. I realize putting a sidewallk between mine and the neighboring home (where it grades away from both our homes) can partially solve this water problem. With my previous request I got a recommendation for interior french drains but my concern with this solution is won't water continue to erode the foundation from the exterior of my home?Nothing would be stopping the water damage on the outside. The mortar in certain parts of my foundation is in desperate need of repair. From what I've read parging isn't recommended for this type of foundation nor is drylock (both merely lock in the moisture and continue to destroy the sandstone). Is there anyone who has experience with a tuck pointer who works on foundations or who can recommend someone that can effectively repair this problem and not merely cover it up? And if you know a concrete person for the sidewalk between the homes or if you think there's another solution?