I'll be convinced they can fully replace most trade work when they figure out fine motor control and finally build servo or hydraulic systems that don't act all janky and with slop a mile wide. When they can strip a wire, and then terminate it into a screw terminal, and then install an outlet in the wall. All with one robot, using each tool as needed as finely tuned as a human would do it. And also being able to adapt to different situations on the spot. For instance "shit, the hole for the outlet overlaps a stud, wtf do I do to fix this" type stuff.
From what I've seen even from the best like Boston Dynamics, there are still many decades to go before we have fully capable robotic trade workers.