Window lock keys for all windows are kept in stock. From Double glazed UPVC windows to handles from Wooden frame windows. Most of these Keys are pre-cut, and do not require cutting. If you are unsure what key you need, then just buy the full set which we can send you, find your right key, and send them back to us. We do charge a small fee for this, but could be the best way to find they key for the missing window handle key.