The reason for this is that it is very easy to avoid paying the highest cost because many garage doors have been designed to be less costly. Some of these include: no springs in the door which can cause the spring tension to loosen and therefore the door may actually fly open instead of closing. Another factor that often causes garage doors to cost more than other doors is that they are made of galvanized steel instead of other materials, which can lead to corrosion and thus require a longer lifespan. Another factor that causes doors to cost more than other doors is that they have "punch out" mechanisms, which means that if the door is accidentally opened the latch does not close automatically. Many of these are now being made with biometric locks that do not have to be opened, making them less expensive than ever. Discover facts about Tips For Getting the Best Deals on Garage Door Replacements in Ballwin, Missouri.