Here are a few useful sites:
Or you could take the measurements of the window and order the screening material and do the rest yourself. Just goggle diy solar screen and your area to see what is available to you.
Something as light weight and easy to install as tarp can be used for solar screens and still look nice. Hope this helps, Elaine https://www.hometalk.com/37838502/build-porch-cover-on-the-weekend
We hired a local man to come over and make the screens right at our hous
our house. He came and took the measurements and made them at his garage. They are wonderful at blocking out the Texas heat! They really do keep your house cool!