They help keep water away from your basement and crawlspace. Homeowners should also install a backup sump pump. Submersible pumps are more powerful and can fully submerge in water. Outdoor Sump Pump Installation: A sump pump is a great home appliance that is used to collect water from around the foundation and pump it away from the house. The sump pump is a great piece of equipment, but it does not last forever. First, you'll need to dig a hole in the ground that is big enough for the sump pump. Having a sump pump installed is a simple process, but it can take eight to ten hours to complete. Crawl Space Sump Pump Installation Cost: Installing a sump pump in a crawl space can be a tricky undertaking. Water damage can cause toxic mold growth, which can result in expensive repairs. The materials you need will vary based on the location of your pump. It is important to keep in mind that the sump basin should be at least 10 feet away from the walls. If you want to install a new sump pump, consider hiring a professional.