Our basement started to leak when loose mortar fell out between the chimney and the foundation. Crack Busters (Morgan) gave us a roiugh estimate over the phone for repair, and let us know what work we could do ourselves to lower the cost (removing the interior mouldy wall to expose the crack, removing the unilock brick outside). Morgan and his crew arrived on time and worked quickly to put an external membrane over the leak. The replaced the dirt they had dug out, but left the unilock replacement up to us to keep the cost down. We are satisfied with the result- a dry basement!- but we are unhappy with ithe black rubber membrane sticking up around our chimney. The unilock doesn`t fit properly around the chimney now, and we will have to recut some bricks to make it level again. It`s very obvious that there was a leak and we worry about the reasle value of the house being affected. But, it doesn`t leak anymore, so the job was done right if not prettily.