My wife and I just bought a new to us home. The garage door when opened or closed sounded like it was wailing in pain. Called A1 and Technician came out to inspect. I figured I was going to need a new opener and bearings etc. After the inspection the technician informed me that our opener and bearings and wheels were all in good working order and had been replaced in the past 5 years or so, and the source of the noise was the 16 year old springs and cables. Less than an hour later we had new springs and cables with a lifetime warranty installed. The garage is almost silent now when opening and closing. I can say that if we have any further issues with our garage we will be calling A1 back.