Assuming you're a STEM curious person since you're on Slashdot, then unless you're physically disabled, the reason you hire that work out is because it is unpleasant, not because you can't do it. I'm a cheapass and do my home maintenance myself, if you played with Legos as a kid then you have both the dexterity and the ability to read instructions to do plumbing, HVAC, or electrical while reading construction codes for the 'how to'. The woodworking part of it is fun enough I took it up as a hobby!
Anyhow, if the white collar folks all get laid off because AI closes the offices, then those offices and homes are not going to need nor afford HVAC, plumbing, or electrical work hired out. But if you're right, and demand stays higher than I'd expect, then, well, I have wrenches, pipe cutters, pliers and multimeters, and if I'm hungry enough I might underbid the professionals by enough to get the jobs from the other destitute home owners.