Capital Backflow Corp. is a family owned company based in Richmond, ON. Our team of licensed plumbers has been servicing Ottawa and region for over 20 years. Capital Backflow was created specifically so that building owners and property managers have a one-stop company that can deal with all aspects of backflow prevention. Surveys, engineered drawings, building permits, installation, testing, and repairs are the services that are required and that Capital Backflow can supply. Capital Backflow Corp. is the only company you need to comply with the City of Ottawa Backflow Prevention Program