The company we used is called Roomworks and is run by the wonderful Paul Barton…I have copied him into this mail.
They are based in Nottingham, but install rooms all over the country, many for the National Trust.
They use a pre-built system and then assemble on site which makes the build time much quicker than a conventional building. The timber has worn beautifully and we have been thrilled with the result.
We get so many complements from guests as it is so rare to have a such a wonderful large expanse of glass on a Scottish cottage.
As for cost, I can’t say this is a cheep product, as it is a very high quality build but it is less than conventional build.
Would I recommend Roomworks? …put it like this, we have now asked them to build another complete guest house for us….so yes we are very happy to use them again and recommend them.
I wish you the very best with your project and leave you in Paul’s capable hands.