Hi all can you help a bit. I work on domestic houses and the odd small shop. I've been asked to quote on a holiday camp club house . I'm not sure exactly what they want done yet. But if its the club house and offices the windows range from large patio doors to decent size windows ... What can I charge per window ?? Do I double the amount of each window etc ?? I don't want to over complicate my self.. Lol .. Cheers guys.