Cost of installing supplying and fitting patio doors

[Fletchersromancing]

I was hoping people who have had patio doors fitted where there is currently a window how much did it cost to supply and fit? Also what area you are in.

Many thanks 😊

We were quoted £4800 for bifolds in June 2020 when we were living in North Lincolnshire.

This was to put them where our kitchen window was.
This was the "all in" cost for supply, materials and labour and included VAT of £800.

"Not included:
Building control certificate from the local council ( Equivalent
to a FENSA certificate, Price given on request )"

We did have other quotes, but that was the cheapest.

I'm also interested in the answer(s) to this. I'm in Norfolk and would like to swap a 1st floor bedroom window for a set of French doors, with Juliet balcony. This would obviously be more expensive than a ground floor job, but I'm guessing a lot of the cost depends on the size of the existing and new openings, as well as the spec of the doors you want.