On Mon, 15 Sep 2014 18:57:45 +0100, Bob wrote:

Does anyone have any recommendations for roller shutter garage doors or
any tips of what to watch out for? We are in Leeds.

I went to these http://www.thegaragedoorcompany.ltd.uk/ for a pair of
Cardale roller shutter doors - quite satisfactory and no problem with
draughts although I did install this:
http://www.ebay.co.uk/itm/GARAGE-DOO...ht_5601wt_1141
afterwards, from the same vendor.