I had mine fail on me a few years ago. Mine was a single spring, and after researching on how to replace, I decided that I'd rather pay someone else to take the

I had mine fail on me a few years ago. Mine was a single spring, and after researching on how to replace, I decided that I'd rather pay someone else to take the risk. It was around $700 at the time and the installer installed two springs (side by side) to handle a failure event with one of them.