So we had ALL of our windows fitted on our house. One of the windows you have to slam shut as it obviously has been measured wrong and getting caught on the lip. I’ve woken up the next morning to to see grey stains all over the frames. Tried wiping it off as thought it may be muck. But it’s STAINED! All of my windows! Also the sealant is a mess on the brick work of my house on the outside. Yes I was happy it all got done in a day but my windows are atrocious! And we’ve paid £5000. We do have someone coming back out to have a look at the problem but not till a month and a half away!