Backwater damage is a threat to millions of homeowners and builders, and never has the damage caused by flooding and backwater been as costly as today. However, many builders and homeowners remain unaware of the fact that they can and must protect themselves from backwater. Local authorities and insurance companies require such protection. The current climate changes, bringing with them sudden torrential rainfall and flash flooding, require timely considerations regarding backwater protection. Professional and suitable backwater protection helps to maintain the value of properties and buildings in the long term.