How much would it cost to fit a back door?

[MikeUniformMike]

I am in the South East and need too replace my back door.
Maybe the door frame needs replacing. It's a standard size and I was hoping to get a second hand door, a stable style door preferably.
It would need a mortice lock ideally.
I would need to get a handyperson to fit it.
Can anyone advise.

All depends on if you can get a door that is the exact size or if it will need to be shaved down to fit. My friends husband who is a builder (carpenter by trade) always says go on a door a day and any quicker is a bonus!

Thanks for the reply. It's a standard size, so I should be able to get one to fit. It'll need skills that I haven't got so I'll allow a day. How much would it cost and is it a handyperson or a joiner I need?