When your basement is leaking in southeast Michigan. You have several options to correct this problem.
First off, make sure your downspouts are working correctly. Make sure the water coming out of your downspouts is flowing away from your house and not straight down the side of your foundation.
You can add a extension to your present downspouts if this is not already done. These extensions can be purchased at your local hardware or lumber company. Make sure the grading around the house is built up and the surface water is not flowing towards your house.
If you have already completed the above, then it is time to consider calling a professional waterproofing company in southeast Michigan.