You are right SRS in that it is something I'm aware I need to think about. When an inevitable break down occurs, I doubt they would find anyone to come in and fix things. I'm hoping I'll be able to talk this (and some other things) over with 2 of my brothers who I think should be visiting next weekend.

One perhaps fortunate thing here though is nearly all the lights can be operated manually. When I was in hospital, homeseer automation and the Alexa bits were lost because of the network disconnection under my desk and the only problem light was the study one. A carer tried fiddling with the switch and we had a colour changing study until I was able to fix things.

I suspect that the living room computer will have to go with the loss of cameras amongst other things and the LAN be simplified.

Maybe even the Honeywell Evohome heating system would be better changed to an older type set up as batteries in sensors need changing and mum doesn't understand it. It's quite simple really, each radiator has a controller on the valve which is programmed to set to the required temperature for the time of day and will open/close the valve and fire the boiler up as needed but mum, thinking something is wrong, will come and tell me, it's a cold day and that radiator is cold. I've lost count of the number of times I've had to explain to her the temperature in that room is 18C and the room is set for 18C so the radiator should be off...