I've just bought a flat with a ground floor bay window which is upvc looking into the street. I would like to shade the boots halves of the windows so some light comes through, but people can't see in. I tried plastic sheeting from b&q but I couldn't apply without air bubbles and it looked poor from outside. Is it too small a job for a professional to come round and install for me? Or is there another option? Any thoughts gratefully received! Thanks