What went wrong? More like what went right. Had complete glazing for a new build. 3 sets of french doors all the wrong size, are very difficult to close and creak like a haunted house. They couldn’t complete installation while scaffolding was up then couldn’t do the work once it was down so 2 years on still not complete. Charged us VAT when they were not supposed to. HMRC write to tell us Everest needs to pay us back. Spent almost 2 weeks arguing with them over this. They seem reluctant to refund, even though I have sent them a copy of the letter from HMRC. Shame I had to give any stars at all because not even worth 1*. When you have to contact customer services they won’t let you speak to the person needed to deal with it. They email the relevant person who emails them back who phone you. Just go round in circles. DO NOT BUY EVEREST!!!!!!!