Can an electrician condemn the wiring in your house?

Yes. We use the terms ‘satisfactory’ and ‘unsatisfactory’ when it comes to describing an electrical installations. If an electrical installation poses an immediate danger an electrician can turn off and lock off your electrical installation and issue a danger notice. Whilst it is very rare to happen, in just over 20 years we have only issued 2 danger notifications and these were for a single circuit not a whole installation.