I did mine with Window-s. Web: www.windowfilm.com.sg Project reference: www.windowsfilm.wordpress.com Got a few quotes for solar (living & rooms) & frosted (bath & yard). Did with them because price is much more competitive compared to big names like 3m, lummar. But more safe than freelance or small companies. And their product range are easier to understand, not some companies so many range, salesperson tell you this good and that also good, so confusing pricing also more straight forward, no gimmick like others who offer 30% discount, end up also more ex. if didnt say i got another quote also never give, already discounted confidence. Installation was quite professional, protect your floor etc.. but got a few bubbles here and there. called them they say will go off in a few weeks. Now waiting to see. (is it true? anyone got such experience?)