Janus sells an "upgrade repair kit" to accommodate the issue of spring replacement. Research shows that the broken spring issue can be prevented if the spring is protected from the outside elements and proper lubrication is applied to the spring. The kit fits all roll-up doors. All you need to have is the size and manufacturer name. The kit provides you a fully enclosed barrel, tensioner, lubricated springs, and a five year warranty. So basically you have a brand new operating system of a roll-up door for a fraction of a new door price.