when rollers come to the end of their life cycle they will start to deteriorate with bearings going bad or if they are plastic they will start to crumble fall apart. Also when they start to deteriorate and lose their strength and the wheels look like they are crooked then it would be a good idea to replace all of the rollers at one time. If you cannot afford to have a technician come out to your home and replace the rollers for you then in emergency cases you can purchase replacement rollers at retail hardware stores. They are usually sold individually at the hardware stores so if you wanted to replace all of them you would pay around $50-$75 to buy 10 or more replacement rollers so if you had to you could. Most garage door repair companies will average charge to replace a set of rollers is around $125-$150 dollars.

replace one or two bad rollers

It is not uncommon for homeowners to replace one or two bad rollers in a pinch I do see it all the time. It’s really not that big of a deal the garage door will still function with a couple of new rollers and the rest older ones. Also you have to make sure that there isn’t something wrong with the garage door that is causing the rollers to deteriorate prematurely. For example if you had a garage door that weighs around 1000 pounds with plastic rollers made for lightweight basic garage doors, they wouldn’t last very long. Rollers are a very important part of the garage door engineering. Because you can open the garage door even with a broken spring or broken cables if you open it just right it can still be open because as long as the rollers are rolling evenly inside of the track the door will still function if the rollers are not any good the door will not roll and will make it very difficult to function properly.

old steel rollers

Whenever I replace old steel rollers with new rollers that have a nylon thread my customers always seem to notice the improvement in smoothness when it opens and closes and it is a lot quieter than the steel rollers that they previously had. If you are planning to replace a set of rollers on your garage door then talk to your garage door technician about putting nylon thread rollers in if you have steel ones already. Always remember when you are getting prices on replacing rollers on your garage door that a 7 foot tall door will have 10 to 12 rollers so if your door is above 7 feet tall plan to pay a little more because the taller the garage door the more rollers it is going to require, they will charge extra. Yes it is always the best to replace all of the rollers on the garage door but it will function with some old and some new so use your judgment and talk to your garage door technician and sometimes garage door companies include roller replacement with a garage door tune up so inquire about tuneups.