We purchased a conservatory with a "10 year guarantee", only to discover this guarantee is fairly worthless when anything goes wrong. Last year the door of the conservatory broke, it would no longer lock. Smiths refused to help, saying moving parts were not covered. Yesterday one of the windows spontaneously shattered. It was not hit by anything, it just popped. Presumably related to the heat, as the conservatory gets very hot on any sunny day and its been a record breaking hot August. Smith again refused to help, saying the glass is not covered. Further, they are now saying I need to pay them £320 to fix the window. I have received a quote elsewhere that says they can do it for £120, but Smiths said if I use anyone else they will invalidate my 10 guarantee. The vast majority of the conservatory is glass or moving parts, so basically very little is actually covered. In addition, their customer service is terrible. Last year it took me a very long time to get a response. This year, whilst I received a response very quickly, it came just short of calling me a liar.