We were looking to lift and stabilize our front sidewalk of roughly 50 feet. some of it had sagged, cracked and heaved at angles. Frontierbasementsystems, had the technology using the polylifting approach and experience that we were looking for. Great job, on time, was a tricky job with curves, and multiple heaves in multiple segments and Crew Foreman Eric Furman, rose to the occasion. Very happy with the process from making contact, to job completion.