It is possible to change the weather stripping out on your own, but the hardest part is finding the right type of weatherstrip which works for your door. A trained eye is usually needed to find out if what you buy will work because there are a lot of different versions, but there is a most common type that we carry, which is called a T-type. It can sometimes be slid in and out, but the retainer can sometimes get bent, making it tricky to pull in and out of. The garage door needs to be in the proper position when it is changed, or you may not have enough space. Also, once installed, the garage door operator may need to be adjusted because the door might not sit in the right spot.