Pro Lawn Care experts install French drains where they make sense. French drains use a combination of trench work, gravel, and perforated piping to collect surface water and groundwater and divert it away from your property. The piping is installed at the bottom of a sloping trench and covered with the gravel. Surface and groundwater can then be filtered by the gravel and funneled into the pipe. The water can then freely flow down the pipe incline until it is deposited somewhere off the property, protecting your property from water damage that can cause serious damage to your foundation.