While sump pumps are designed to last for years, they are still susceptible to wear and tear over time. If you have a sump pump but are still seeing flooding or water buildup in your crawl space or basement, it’s time to call for repair or replacement services. For the best results, it’s recommended that you check the status of your sump pump on an annual basis. Generally, the best time is during winter before the spring storm season arrives. A faulty sump pump will most likely go undetected until it ceases to function, usually resulting in flooding and water damage to the basement or crawl space. Sump pump maintenance should ideally be performed every three to four months, with a more extensive treatment performed once a year.