If you are like many people, your garage door is not a one-time investment. Rather it should be considered an investment for the years to come, as it is used quite regularly and can wear out over time. In fact, as you get older, the garage door may begin to crack, or bend slightly, as well as possibly experience gaps and wear in its mechanism which will eventually require replacing of the door. There are two ways to find out how often your door should be replaced. The first method is to perform a standard door inspection on your own. This should give you a fairly good indication of whether your door should be replaced or not, but you can also get the parts to do this yourself. The second method that you can use is to carry out a standard door inspection with an automatic door opener. This method gives you the same level of accuracy as the first method but is considerably cheaper. If you decide that the time is right for you to have your doors replaced, you can either go and do it yourself, or hire a service company to carry out the job for you. It is important to note that if you choose to have your doors replaced, you should ensure that you allow enough time for the repair to be carried out, particularly if you choose a specialist company. The good news is that you will usually only have to have your doors replaced for two or three months in order to make sure that everything is fine. If your door fails to last for more than this, then it is best to look at another brand.