Electrics - Light in one room suddenly not working

[sal 965]

We live in a newish three storey house and off one of the top floor bedrooms is a small room/cupboard with a standard ceiling light. For no reason it has recently stopped working so obviously i changed the bulb. No difference. Changed the light fitting. No difference. And finally changed the light switch. No difference.

Does anybody have any clue what may be the cause of the problem as everything else in the house is working on that circuit.

[sal 965]

Took the fitting down from another room after checking it worked

[sal 965]

No nailing, drilling etc.

Worked one day and not the next. I can only guess a wiring issue so my have to venture into the loft to see if anything becomes clearer.

[sal 965]

Sorted.

One of the black wires had come out of the multiplug in the bedroom light fitting (last one before the cupboard) as i mustn't have quite caught it enough when i put the light up nearly four years ago. At least i should be good for the next four years.

Cheers for the tips everyone.