How do you find out if your house is in need of a rewire?

If you have access to the properties electrical installation certificate, that should tell you the information you need. If you don’t have access to these documents then by using a qualified electrician like Tyne Electrical Services Ltd you can have the electrical installation assessed (an EICR) and a full report provided that will give you a solid guide of when your installation was installed and how its safety stands up against todays standards.