Recently we are doing basement finishing project , and need to purchase a lot of stuff and we visited quite often around the three major home improvement stores. I found the Rona actually have quite competitive prices specially during their frequent promotions.
This Rona location offers good services and very flexible with late-pickup option, which helped us a lot during the basement construction. The staff is quite helpful if you can find them on the floor though. But they are not as knowledgeable as I hope they are.