My neighbor, who is a building inspector, had all his windows installed by House Smart Home Improvements. He was very pleased with the work, so when I decided to install a large picture window in my bedroom, I called on them to do the work. This was almost a custom job, because they had to install the window behind a railing, and that made it somewhat difficult. But they did it with no problem. They knew what they were doing, and there was no -"We need to call the office first and see it we can do this" - sort of talk. They just did the work, and they did a great job! There are even slides on both sides of the window, and they did not damage those during the installation work. They are very professional people!.