The installation went really well. Both young and Joon really showed that they are experts in their field and a pleasure to work with. We are very happy with our Okna windows and noticed that there is less draft and more sound proofing now. We haven’t used the doors much - quarantine, but noticed that it is such a joy to actually be able to lock and open them without much effort. Charlton is busy doing touch up with the trim and putting the blinds up as expected but we can reuse all of them. We are very happy and feel that this was a great investment. We have noticed that many of our neighbors were watching the installations on Monday and Tuesday and yesterday noticed that many were stopping to look at the finished product. If you need any recommendations in the future we will be more than happy to provide one. Thank-you and God bless and keep safe in these covid-19 times.