How much to change a washer and a nut on a Cistern

[WeirdLegs]

Took 1hr 15 minutes.........just intrigued to know - thanks.

Been charged 60 + vat - just want to know if this is about right?

Which washer and nut. On the incoming water, or from cistern to bowl? I would expect the latter to be more expensive. That's not too bad for an hour and a quarter, depending on where you are in the country. If in London or S.E., you've done well.

That's pretty good.