Nick: If they're more than 1/4" wide, there are many, and/or they're very long, get a basement pro's consult first.
Otherwise, use hydraulic cement. Technically, they need to be fixed from the outside, which an be a costly horror of digging up the yard around your house.
Mine, of course, are directly under the deck. It would have to get ripped out to reach those areas.
Your own repairs will fail every few years. Just redo as needed.
When patches are done, use UGL brand waterlock prime. No other brand actually works.
The cracks are very small... Probably less than 1/8" if that wide, and about a foot long for one, and about 18 inches for the other. Since the "outside" of the wall is under the garage, there is no way to get to that side of the wall.
So the trick becomes that if I need to keep patching, it will end up behind a finished wall right in the main part of the basement. Again, it isn't leaking or anything, I am just wondering if there is anything "preventative" that I can do to try to assist in preventing it from getting any worse.
