This might be a dumb question for most but, we don’t think it is. Why does my basement leak? Because of a few reasons. But the biggest one is that your foundation is poor. 
Over the years your foundation gets the “crap kicked out of it, with rain and now here in Michigan and you need to have the proper winterizing of your basement.
That is where basement waterproofing in Macomb Michigan can help. Getting a trusted professional out to inspect your basement is free.
The main cause is the weaker the foundation the more water is going to seep, and make holes. So when it down pours your basement might flood.
Flooding is one of the worst things that can happen to your basement. If this has already occurred in your basement your need a waterproofing specialist now in Michigan.