How do you determine if I need a backwater valve?

A backwater valve is a critical device that prevents sewage from flowing backward into your basement during heavy rainfall or a municipal sewer backup. If your home is located in a low-lying area or connected to a combined sewer system, your risk of backflow is much higher. We begin with a site inspection to determine the elevation of your basement plumbing in relation to the main sewer line. If your basement fixtures are located below the level of the manhole or city sewer, a backwater valve is often required by code. We also check for signs of previous backups, such as water stains or mold near drains. When needed, we install a backwater valve with a transparent access cover so you can monitor its condition. Proper placement and regular maintenance are key to ensuring it functions when you need it most.