Do yourself a favour if you live in Durham Region and want to change your windows and doors and call this company NOW!!!! I made the mistake of going with a larger company my first time and had issues with them when things didn't go right. This time around, I called Luke's Windows and Doors and had the most relaxed and enjoyable experience when it comes to renovations. Mark and Chris are extremeley professional, friendly and effecient. The owner Mark takes care of every step of the process from day 1 and does the installation himself with help from Chris. They completed 3 windows and a sliding door in a day and cleaned up as if they had never even been here. I will be calling them back next year to complete some more windows! Great work and thanks!