Just wondering if anyone can help with possible costs? We inherited a rather rubbish conservatory when we moved into our house. It's quite leaky and pretty old (and we've been here 14 years now so even older!). The base is fine, so I was wondering how much it might cost to replace the windows/roof. Just realised I should have measured it, but at a guess, it's possibly 2.5 metres by 3/4. Has anyone done this? We're in the Midlands.