I think you mean something like the Honeywell smart systems you can set from your phone.
We have it and it is brilliant as you can change temperature profiles for individual rooms.
My only quibble is that there is no obvious way of changing a kids room profile from term -> holiday. Got round this by creating a pair of dummy rooms and copying the profiles across.
Saves heating rooms nobody will be in for hours.
If you have a Honeywell remote wall thermostat, they are very common, already you don’t need a plumber at all as you can self fit it.
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