The price of a French drain replacement usually ranges from $24,000 to $36,000, including the waterproofing membrane for a typical bungalow. Usually, it can cost anywhere between $240 and $480 per linear foot - all depending on obstacles present. However, it can also vary depending on the factors present throughout the installation process: Excavating, Installing the waterproofing membrane on the foundation, Installing the French drain, Installing the backfill and Cleaning the premises.