I don't disagree with any of the above comments regarding payment but I would like to add that Crofton is just finishing my project and I couldn't be more pleased with their work. Perhaps I have just been lucky with the builder Aaran and his team and all the other trades but they have done an amazing job and the quality of their work is top notch. My project has included quite a lot of internal work, in addition to the orangery, so has not been straightforward and will have been completed in 8 weeks from start to finish. As a competent DIYer, I am highly critical of the work of others and know what is and isn't a good job and this is definitely good. Based on my experience I would definitely recommend them but reading the above threads perhaps others have not been so lucky.
I don't know what has happened to my username but for the record I am the Rob Allen who first posted on 30 November last year.
Glad I gave a balanced opinion when we met, did you do anything differently as a result?