While we are at it, we might as well check the humidity in the room. One of these is the installation of a sump pump. Installation costs can vary, especially in regions that experience a lot of rainfall and humidity. Afterward, cement the pit. Sump pumps are similar to insurance in that they protect you from the risk of flooding. If it's a unit powered by electricity, you'll need to enlist the help of a professional. Plumbing A Sump Pump Discharge Montclair: Adding a sump pump to your basement is a great way to make your home a little less vulnerable to flooding and moisture levels.