It can be tempting to turn your window installation into a DIY project in hopes of saving a bit of cash. Unfortunately, handling the window installation for your home can lead to a laundry list of problems. While the job may sound like an ideal home improvement project, it can end up costing you more time, money and headaches than you were hoping. To help you get a better understanding of why the job is best suited for a professional, here's a short list of real-life problems that homeowners often face while attempting to install their own windows.