Multi-panel UPVC folding doors for wide openings, available in a range of configurations and finishes — stacking neatly to one or both sides to open up a living space to the garden.
Trade & DIY welcome — open a trade account for our best pricing, or buy individual orders at counter rates. Ask in branch for current lead times on your chosen configuration.
Our UPVC bi-fold doors fold back concertina-style to open the full width of an aperture, giving a genuine indoor-outdoor connection without the footprint of a hinged or sliding door. Each set is made to order for your opening, with a choice of panel configuration, hardware and colour.
Our standard UPVC bi-fold door achieves U-values as low as 1.3 W/m²K, with a 10-year frame guarantee covering colour longevity and Liniar's patented bubble gasket for weather resistance.
For a slimmer sightline, ModLok pairs a patented aluminium outer casing with a multi-chambered UPVC core, giving superb strength and stability. Available to Secured by Design standard, in configurations of up to 7 panes.
Panels can be arranged to fold to one side or split and fold to both sides of the opening, with one panel usually set up to open independently as an everyday access door so the whole set doesn't need to be opened for day-to-day use. Panel counts and widths are made to suit your aperture — tell us your opening size and we'll confirm the best configuration.
Available in Standard White plus our standard foil colours, so your bi-fold door can match the rest of your Liniar windows and doors — ask us for the current lead time on any other finish.
Standard Foil Colours — normally 5 working days
Swatches are an on-screen approximation only — always check a physical sample before ordering. Standard White and the 8 standard foils above are typically a 5 working day lead time; other Liniar foils can be ordered in — ask us for the current lead time.