The drive from our Stuart shop to Sewall's Point is about three miles, which matters more than it sounds like it should. It means a call here doesn't turn into a half-day trip where we're guessing at the problem sight unseen - we're close enough that a quick look at the unit before you order parts actually makes sense.
That's worth knowing before you decide whether to do this yourself. Sewall's Point homes cluster around a 1988 build year, which puts a lot of original openers at the very end of their working life - old chain-drive units with worn gears, tired capacitors, and safety sensors that may have been bolted on after the fact once the 1993 federal reversal rule caught up with houses already built. Swapping the head unit is a reasonable weekend project if the rail, bracket, and wiring are in good shape. Where it stops being a DIY job is when the old mounting doesn't match a modern unit's bracket spacing, or when the door itself is out of balance - a new opener fighting an unbalanced door burns out fast no matter who installs it. If you're not sure which situation you're in, that's the one thing worth a second set of eyes before you buy anything.