Blackstar Aluminum replaces/installs 5 and 6 inches residential and commercial eavestroughs in Toronto (GTA). Our specialists can upgrade your eavestroughs with T-Rex or DoublePro, a Continuous Hanger System. Through its unique patented design, T-Rex creates a unified structure that resists bending and twisting. DoublePro is a dual-action gutter protection system. It is built to stand up to the worst weather conditions in Canada and keep your gutter free of ice and debris year after year.