Granite curbing: the most durable product on the job site. Almost literally lasts forever. Syrstone furnishes and installs granite curbing throughout the northeast for bridge and highway projects of all types. Our crews are equipped with truck-mounted hydraulic cranes for high production and quality installation. We distribute granite for several major quarries and can provide specialty as well as standard grade granite. Syrstone is one of the oldest granite curbing installers in the nation.