I spent over £12k on a Kitchen which was installed in Sept 2016. All was fine until May of 2017 when in the middle of the night 2 (full) kitchen cupboards fell off the wall, smashed all the contents, scratched the quartz worktop. The cupboards (empty) probably weigh 30kg. They had been put into plasterboard with 4 x 1.5inch screws! I am no expert but I was lucky it held as long as it did and didn't fall off and kill a child or animal. I spent months trying to get some compensation and get the kitchen 'righted. The quartz still has a chip out of it as they wouldn't replace. It took 6 weeks to get an apology from the person dealing with my case and literally months to get it all repaired/replaced. They use contractors to fit the kitchen so you have no idea if their work is substandard or not. Beware!