What is the lifespan of a GDO?
A screw drive GDO should last 8-12 years (much longer if well taken care of) if lubricated twice a year, more often in colder temperatures. A chain drive GDO will eventually experience chain stretch and will have to be adjusted; the gears inside also take a beating. Friction type openers (trac or belt) last just as long with the exception of the belt or trac and trac sprocket. These parts commonly where out. Parts are still available but are becoming harder to find.
