not just as simple as people have said, cutting out the hole in the ceiling in the right place, as well as having to trim out with timber for the loft ladder....If its going to be trod on a lot, youd have to make sure the ceiling joists are adequate, whch they probs wont be, 4x2's most likely, if you were to board over the existing joists, expect cracks in your ceilings below.....a days work for someone who knows what there doing if the joists dont need replacing...(if its not going to be in use often).
Could say 12-15 an hour for most tradesmen...do the maths + materials.
There is a hole + drop down hatch apparently. It won't be used a lot, light load. Can't have heavy load anyway (joist load aside) as it's one of those 'V' roofs, where it's supported by the horizontal.
Apparently he wouldn't budge on the figure £1, so we're asking around for more quotes.