Founded in response to the need for reliable solutions to below-grade water infiltration, Guardian Seal has been serving the Greater Toronto Area with variety of waterproofing experience in residential, commercial, places of worship, and infrastructure projects since 2008. Our goal is to provide cost-effective options that minimize the scope and expense of a project, utilizing the most advanced repair methods and best practices. With a track record of success on challenging projects such as tunneling and deep excavation, our team has the skills and expertise to tackle any job.