Best place for blinds for just two windows

It is a wide blind, as there are two windows in the frame. I want to redo two as blinds are not fully closing that I have now. Is it worth it to have someone come and measure and install for two windows? I used blinds.com for my two bathrooms and that worked out, but they were smaller windows so I did the measurement perfect. Not sure how good I would be able to measure this big window

Best place for blinds for just two windows

I used Long Island Window Treatments in Syosset. He did an amazing job and would definitely come for two windows. In fact, i plan on having him come back for just my bathroom window.