I had 6 windows replaced. Really happy with the design and effectiveness of the windows. However we had issues with a couple of the units. This was down to the assembly and final finishing of the glazing. Once the engineers had gone, we noticed sticker and sucker marks appearing when bathroom windows steamed up or on a cold high moisture morning. We called the engineers back who cleaned the marks from the bathroom windows. But the window in my daughters bedroom continually had these issues. We had engineers return many times to either clean this window or replace the unit. Even when the unit was replaced, sticker marks were unreachable because they were on the inside of the glazing units. After the 3rd time of this same issue, Anglian decided to wash their hands of it and now I am left with a window that isn’t at the standard you expect. The majority of the time these marks are not visible and windows look great, but occasionally they appear on mornings and it’s frustrating to see after spending so much money on them. Anglian needs to be more careful when assembling these units in the factories and engineers need to clean them thoroughly before they leave them with the customers. I advise any customers to steam iron the mist onto the windows before the engineers leave, so you aren’t left with sticker and sucker marks all over the glazing. These marks can’t be cleaned with average window cleaner fluid and the engineers can use their special fluid for this and if marks are on the inside, they can order to replace the unit without any further delays!