We got new windows fitted by this company and they were fine. On the strength of that we ordered a conservatory from them. I wish we hadn't. Five years down the line and we still have leaks. Our sofa has been stained 3 times because of this so when it gets cleaned this time CSJ are getting the bill. We phone them up to complain and they say someone will get back to you, they never do, I have to phone again. We have had numerous workers out to try and find/fix the leaks all to no avail. It took them from April to October 2015 to install the conservatory, They ordered the wrong cavity tray, bits of the fittings were missing from the order. This company must be the worst company in terms of communications with customers. We had tradesmen arriving when we didn't expect them and some not turning up when we did expect them. As I said at the start the window installations were fine and we are very pleased with them. Gavin the rep was very helpful and was present on the days of the fittings to ensure everything was OK. I would advise if you are thinking of ordering a conservatory from them, think again.