My job - 21 windows all double hung with a range of sizes. Some are older vinyl some are wood. 3 windows are wide and short casements and will need to be "built down"; 1 is a bay window, rest are double hung with a couple joined together in one frame. I met with power home remodeling last night and they quoted me 20k to do the job. I thanked him for his time and sent him on his way.
I have been reading on the forum quite a bit about Okna and would like to get a quote.
If there are any installers in my area, please reach out to me. (FYI I'm also looking to do siding together if it sweetens the deal and makes install easier)