Warranty Warranty Information: At GB Stone Company, we understand what a Manitoba frost can do to all landscaping projects from small to large. Spring thaws can do justice on a newly installed patio’s or retainingwalls. 5 Year Warranty We offer 5 year warranty on all workmanship. Licensed with City of Winnipeg Licensed and Insured through the City of Winnipeg to do driveways and driveway approaches! Additional Information: Our concrete product suppliers offer lifetime warranty on their products. In Good Hands That’s why we take every step to ensure that your are a happy customer. Trust Worthy You can trust you are in good hands dealing with GB Stone Company as a lifetime investment. We unfortunately do not cover plants, tress and shurbs.