The front door is one of the parts of your home that are the most important. Right up there with windows, doors help to protect you from the weather, help you save money, and provides security for you and your family. Most people have started using their garage and side doors as the main access point to their home, so the front door is often overlooked or forgotten, here are some things you can look out for when checking your door to see if it needs replaced. If your door sticks and is hard to open and close, this is an indicator that you need to replace your door. This could mean that the hinges are sinking, or that your door has exposed areas around the door. A quick thing you can do to check this is take a lighter around the perimeter of your door and watch what the flame does. If it moves around when you are holding it still then you most likely have air leaking into your home. This could cause your heating and cooling bills to get larger and larger so it should be fixed