Do the Silca Grates come with a warranty? Yes. Silca Grates come with a 20 year manufactures warranty. By stde1900main|2019-06-10T15:50:50+00:00June 10th, 2019|Silca Grates| Share This Story, Choose Your Platform! FacebookTwitterLinkedInWhatsappGoogle+PinterestEmail Leave A Comment Cancel reply Comment Save my name, email, and website in this browser for the next time I comment.