What I thought was one source of water in a corner of my basement turned out to be two. Fixed one by putting in a much bigger window well, regrading and extending downspouts.
As i went to strip out the drywall for repair I found that immediately around the corner from the new window well water was leaking in high up the wall, maybe just a foot below grade. You can see where the wet spot where the moisture starts and then spreads out. Construction below grade is block with brick and block above that.
So I know I have to dig outside in that area and figure out where the exterior water proofing has failed. It is a small area and I suspect that it will be too small a job for a waterproofing firm to come deal with. What’s available for this kind of repair in reasonably small quantities? Advice gladly taken.