When my garage door opener broke, I mistakenly called someone else to replace it. They informed me that the springs needed adjustment as well, which they would do for an additional $400! I reluctantly agreed. Within days the opener was randomly operating on its own. The company serviced it at no charge, but the problem continued. Then one of the springs broke! That's when I called Cressy. Rudy came out, took measurements and had 2 new custom springs installed and correctly adjusted in 2 days, for a little more than the other company charged for a simple adjustment.
I have been kicking myself ever since for not thinking of Cressy first!
BTW after Rudy adjusted the new opener, the random opening has stopped.