Robert Priedemann

They were the best price, came when they said they would, and finished the job in a day. Then, a month later when I had a different contractor in with a concern and called cornerstone, Bill responded immediately and was politely able to prove out that the other contractor had made a measurement error, resolving the issue for me and avoiding extra unnecessary work.

Extremely helpful in helping me ask the right questions to have a better understanding of the work being done.