We had a customer with a problem we see almost everyday. She had a crack in the basement wall off the corner of the window. Then we looked at window also. It was improperly installed and the basement window was leaking too. The prior owner had a sump pump put in and they placed a 4" concrete berm that went around the window area and over to the sump pump, hoping the water would go into the sump pump. It didn't work. In fact, the water was leaking out from underneath the berm.
If someone had called us right away, we would have fixed the basement wall crack with an injection process. In fact, the injection process is how we took care of it. We drilled holes along the crack, installed ports, and injected a closed-cell polymer resin. The resin expands and fills the crack. We were able to get the crack dry, and the window was reinstalled with a professional carpenter. Too bad the original owners had not called us originally, we could have fixed the problem permanently, for less money and aggravation. Never try to fix basement leaks with a "band-aid" approach.
For more information on basement waterproofing, contact A1 Foundation Crack Repair.