The system should be installed at the same time as the drain. However, the costs can vary based on the area you live in and the type of drain you want. Some pumps come with a battery that can operate during a power outage. New Sump Pump Installation Cost: The cost of a new sump pump installation can be high. Having a sump pump installed is a simple process, but it can take eight to ten hours to complete. The P372LE51 sewage ejector package from Liberty Pumps is designed for both residential and light commercial applications. Check that the sump basin has a cover that keeps out dirt and debris. You can also use concrete to fill the area around the sump. You'll also want to connect a GFCI outlet to the pump.