Rewiring

[Ric.ror]

How will I know if my house needs re-wiring?
I have no idea when it was last done

[Old_Geezer]

Q. Has the house burnt down yet ?

Failing that is the rubber insulation cracking and falling away. Do the lights keep blowing ? Or flickering even ? Do you get a shock when touching the kettle or the washing machine ? Have you seen smoke billowing from the walls or floor ? Has your missus moved out and taken the kids ?

[The Builder]

If it hasn't been checked for years, then have an EICR (electrical installation condition report). It only takes a few hours, but it's quite comprehensive.

You need one anyway every 10 years to be sure, so nothing wasted.

Then go from there.

[Ric.ror]

Old geezer- NONE of the below
I'm hoping to rent it out in a few months and want to decorate before I do

[Old_Geezer]

:-)
I'm no expert but if you want to rent out, don't you need certification of all sort of stuff ensuring safety ? I suspect you don't have much option but to pay an electrician to test and sign it safe.

[Ric.ror]

I think (hope) the letting agency will sort all that out for me