Nicola Sutton from Gloucester 2 reviews Gloucester, ON Joined 2013/04/22 First Review 10/10 Interlock stone driveway and porch extension Interlocking Stone review in Gloucester About 5 years ago CSI were a pleasure to work with. They showed up when they said they would and finished on time. No surprises on the cost. They kept the site clean. And the results are gorgeous. Job Price Was this review helpful?