Standard of work and friendliness of the installers was excellent. However, whilst the original salesman was polite and helpful, the sales techniques he was having to employ were like something out of the 1970s! Old fashion and boring. Two and a half hours of our lives that we will never get back. This is NOT a modern and effective sales technique. It needs to be much snappier. As it is it either bullies or bores people into signing up, or turns potential buyers off completely. If the former is intended, then shame on you! Luckily, for First Home Improvements, we recognised that the product was good, otherwise we would have fallen into the latter category. As for the survey, we fail to understand why the physical survey took about 15 minutes and the 'know it all' surveyor then had to spend over an hour in our house writing up his notes. Should he not do this at home or in the office? In short, good product and helpful friendly fitters. Sales and survey methods stink.