I emailed Rolladen with all of my windows sizes as their website would have you do in order to obtain a quote. I received a phone call from one of their representatives stating that I'd get a more accurate quote if she came out and measured. No problem, I was curious to see how much it would actually cost. I got a quote of almost $8,100. The rep tried to get me to purchase the shutters on the spot. Thank goodness I knew to get a second quote. The second company came out and gave me a quote almost $3,000 cheaper to do the same work. Shop around before purchasing from Rolladen. Glad I did.