"A website about traditional timber box sash windows. Here you will find information about how to carry out some of the simpler maintenance tasks such as re-cording and where to get draught-proofing kits (or draft-proofing kits as the Americans spell it). If you're too busy, too lazy, or you just hate DIY, here is where to look for professional help with sliding sash windows."
http://www.sash-style.co.uk/
http://www.sash-style.co.uk/