Installing new windows is a great DIYer task, and it's a topic we've touched on in the past. However, OPC is all about showing pros in action so that you have the best possible resources for tackling home improvement projects, and this is a task that professional contractor and carpenter Steve Wartman and his crew have just completed. If you followed along on the in-law addition, this was one of the last items on his punch list. Read on for details on installing a new window, sealing and weatherizing a window, and installing window casing and molding. New Work Windows