I have a 9-year old house with an unfinished basement that is completely below grade. In order to finish it, I need to install Egress. My preference for egress is a door because the current basement stairs (inside the house) will not accommodate pool table/large furniture/etc... My question is about drainage from the outside stairwell that I will need to construct. My contractor wants to bring the drainage (rainwater, snow melt, etc.) to my existing inside sump, which I don't believe has ever had a drop of water in it after nine years. I am extremely averse to bringing water into the house. Is there any way to install a sump pump beneath the stairs that I won't have to worry about freezing? I live in the Philadelphia area, where temps routinely dip below freezing in the winter, and potentially for weeks on end. HELP!!!!!