Gem was recommended to us by neighbours and they did not disappoint. Jim was extremely helpful. The written quote was very detailed which helped when we decided a year later to go ahead with the purchase. The prices were comparable to the non-written quotes but it's hard to compare the quality of the materials if the other companies aren't able to provide this in writing. The options for windows (surprisingly, there is lots to consider) was explained thoroughly and the details on the purchase order helped to ensure everything went smoothly. The installation was fantastic! Walter and Chris worked well together installing all the windows on 3 floors, a storm door and a very large patio door. They were careful to protect floors while working and paid attention to even the smallest of details. I can't say enough about the quality of the workmanship. I am very happy with the results!! I would recommend Gem to anyone looking for windows and/or doors. Thank you GEM for all you did to ease our stress during this substantial purchase.