oldfatfool
Guru
Had the house re wired and they fitted 2 mains powered detectors in the process
Only new houses...
Under current building regs any home improvements requiring BC approval(permitted development etc) mains wired are needed too.
Agreed, business will always find a way to cut costs, usually not for the benefit of the people(unless the people are shareholders).But there are ways to circumvent this, as the occupants of the Grenfell tower may have been able to tell you, had they lived.