Are Looking for Backwater Valve Installation Services in Niagara Region. Mcdowelldrain offers professional backwater valve installation across the Niagara Region to help prevent basement flooding and sewage backups. Our certified professionals provide prompt, reliable help that complies with all regional plumbing regulations. Backwater valves are trusted by businesses and homeowners in Niagara to prevent expensive water damage to your property. We Can Help: (905) 431-5612 Get more Visit: https://mcdowelldrain.ca/back-water-valve-installation/ »