Hi We ordered a 4 meter square conservatory from B&Q 8 months ago, while we were awaiting it's delivery I went on B&Q's website to check some details, only to find it was a 4 by 2.6 meter conservatory and not 4 meter square, this was B&Q's mistake and they had over sized it in their store catalogue and the website dimensions were the correct one's. As we had already laid the base we had to pay B&Q another £700 for the correct size. Now 8 months on the now erected DIY conservatory has started to leak from the bottom sill and ruined the flooring (this is the second time). We contacted B&Q and were told it has nothing to do with them, it's their suppliers fault Cestrum. We then contacted Cestrum Conservatories and after giving them our order ref numbers etc, were told it was our fault as it had been installed incorrectly, they then dropped another bomb shell and said it was not their conservatory. Back at B&Q they had yet again contacted Cestrum who has now admitted it is their conservatory and will come and inspect it at a cost of £150 because they are sure the fault is with our installation, B&Q have now stopped answering the phone to us and Cestrum just hang up as soon as we speak. Trading Standards have told us to draft a letter to B&Q which we shall do and send it recorded. However both B&Q and Cestrum have both told us in no uncertain terms the fault is with our installation without even looking at it, they now want £150 to just inspect it, this feels almost like blackmail and we feel intimidated by their attitude. Has anyone else had these kind of problems? The conservatory was sold as a self build and the very detailed instructions were followed to the letter, however because of it's construction method which involves clipping plastic covers over everything it cannot hope to become water tight and the design seems flawed. Thanks for any advice or suggestions Alan