Plumbers can't telecommute.
I imagine there's an opportunity for a startup that let's someone who wants to do a simple job themselves Facetime with a plumber to talk them through the work. No idea if there's any profit in it though.
https://bfgblog-a.akamaihd.net/uploads/2015/01/hololens-plum...
(it was faked, the remote guy was drawing with a tablet, but somehow it worked in 3d like tilt brush..)