What did the prep work entail/how much of a PITA was it? We probably need to do a significant amount of wiring, and am trying to work out the trade-off between doing a lot of the prep work ourselves vs. just letting the builder + electrician do it.
Job from me: Mounted the ring doorbell. Now to work out the movement sensitivity....
I chased all the channels for the sockets, plus all the copper pipes for the central heating (7 big verticals and 2 horizontal radiators) There must have been about 32 full room height channels, which I cut with my Metabo chaser. It cost me about £430 but has been well worth it, saved about 3 days of labour and cuts very neat channels which are easy to skim up.
The down side was that mines a double brick wall with no breeze blocks so it was very hard going pushing the Metabo, plus it fills my 30L Titan hoover bags about every 4 channels. But its almost dustless just bigger debris falls to the ground. But the cost saving and neatness out ways the negatives.
Also using it to score channels in the bathroom in concrete for wet room.
I also ripped all the pipe work and electric cables out and sited everything myself, may have been easier to pay someone but the cost and mess wasn't worth it for me.