Domestic property of a certain risk - proper alarm with proper signalling, jewellery / watches Faberge eggs or whatever kept in safe of certain type.
AMCO, you appear to want something cheap, they appear to have no approval for any of their scope of works.
ADT ect..., if going to take days to fit , I assume over a grand just for the man hrs
Konnected, again looks cheap & cheerful,
Envisalink - looks cheap & cheerful...
DSC - I believe they've fully withdrawn for the UK for a number of years, I thought they where pants...
The out the box solution is texecom ect & control4 ect...
Wired alarm in a bigish house couple of grand, control4 much much dearer
I be happy to instruct any of my cleint's to do the wiring, however depend on who & what I may want paying to do so