Factor #3: Location of Installation in the Building. Pedestal sump pumps are installed at the opening of the drainage, which is typically in a low area of the floor. Plumbers charge anywhere between $100 and $1000 to install pedestal pumps, depending on several of the factors listed here. Submersible pumps, on the other hand, may cost between $1500 and $5000, depending on the location of installation in the building.