In terms of your site, we will need to make sure that the openings are prepared in a right way. i.e. sliding doors have to have the opening levelled up; also, if you prefer to have the threshold sunk, we will make sure you will get all the necessary details on its dimensions. While you are waiting for the windows to be supplied, you can make sure to provide us with the most important information such as confirming the site location and your contact number, along with other additional information which may help along the way, for example if your road has sufficient access for HGV's or LGV's, this can have an effect on the type of vehicle we use to deliver your goods. If you happen to be absent during the items collection time, please let us know as soon as possible so we can rearrange transport.