http://www.housemaintenanceguide.com/residentialpatiodooroptions.php has some information on the types of patio doors that can be installed in the home.
Upvc Patio Doors With Cat Flap
Perfect Fit Wood Venetian ' Innovation Blinds. Love the way they fit over just the glazing on the doors.
1800MM X 2100MM WHITE PVC uPVC FRENCH DOOR WITH SIDES WINDOWS/PANELS | eBay
Sliding Patio Doors | Aluminium & UPVC Patio Doors | Glass Doors from Hazlemere Windows
Wall bookshelf with french doors
French doors are a popular alternative to sliding patio doors and provide a stylish way of opening up your home or conservatory to the garden. Description from advance-windows.co.uk. I searched for this on bing.com/images
Aluminium sliding doors and top light glazing just like one were commencing in Kingston- hope it turns out as well!
uPVC Patio Doors Gallery | Everest
UPVC anthracite grey Windows | Anglianhome.co.uk