• Choose New FRAMELESS Glass Doors - a clear winner! • Our UltraSlim frame slide-and-pivot doors • Or Slimline aluminium Bifolding (sliding-folding) doors ALAFORM Doors' bespoke Frameless Glass Doors, aluminium framed UltraSlim Sliding-Stacking doors and Bi Folding doors (also called folding-sliding doors, accordion or concertina patio doors) offer affordable quality and are fully retractable, creating clear, wide access to your garden or conservatory. Delivered and installed direct by ALAFORM door manufacturers. Innovative, contemporary retractable patio doors with the slimmest sightlines, frameless double-glazed patio doors and frameless glass room dividers add a lifestyle quality unmatched by conventional patio doors or French doors. Bifolding doors fold and slide, ALAFORM UltraSlim and Frameless Glass Doors open, slide, pivot and stack for unparalleled light and views. Durable, weatherproof, our made to measure aluminium bifolds / folding sliding doors open and close easily and quickly, whatever the season. Available in a range of frame colours, with or without optional integral blinds, installation is included as standard. Supply-only is an option on request. For the clearest view, we offer UltraSlim or no frames options for your conservatory or patio doors, as well as bifolds / French doors. Our retractable slide-and-turn and bi folding slide-and-fold doors are manufactured in CHINA to your specification, usually within 6 weeks. Can't decide? Compare prices with our no-risk quotation.