A well-placed window can let in cooling air or warming lightright when it’s needed. A window can also add character to anyhome. They are not trivial to install, however. They require fourto six hours of time and hundreds of dollars to complete properly.If they are inserted incorrectly, they can cause drafts, leaks andother structural problems. Below are some general guidelines forinstalling a window in your home. Make sure to follow the specificinstructions particular to your window.First, mark out where you want to put the window from theinside. Drill nails through the wall so that they are visible fromthe outside. Then mark lines outside with a carpenter’s square. Cutthrough the house according to these lines with a circular saw orjigsaw. Remove the exposed drywall. If you are replacing