http://www.housemaintenanceguide.com/residentialpatiodooroptions.php has some information on the types of patio doors that can be installed in the home.
upvc,pvc,front doors,back doors,french doors,patio,doors,pvc windows,double glazing,conservatories | Glasgow | Gumtree
Modern, energy efficient uPVC door, including front and back, and patio doors, custom made in a range of colours and glazing designs.
Aluminium External Folding Doors, Folding Sliding Doors, Concertina Doors, Patio Door, Bi-Folding Doors
Perfect Fit Wood Venetian ' Innovation Blinds. Love the way they fit over just the glazing on the doors.
stock door 8 foot or 2390mm x 2090mm white bi fold plus These were really good value
Aluminium sliding doors and top light glazing just like one were commencing in Kingston- hope it turns out as well!
This customer swapped their old patio door for a new uPVC French Door! http://www.valuedoors.co.uk/patio-french-doors/upvc-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
UPVC anthracite grey Windows | Anglianhome.co.uk