Bi-fold System Folding Sliding Door - Bi-Folding Door

Prestige bi-folds provide slim, equal 138 mm sash-to-sash sightlines to ensure light bathes interiors, even when doors are closed. The entire Prestige Bi-fold range is Part L compliant, able to achieve a double-glazed U-value of 1.4 W/m²K which easily achieves compliance for new homes and non-dwelling commercial projects.

Features and benefits:

• Refined aesthetics with exceptional thermal performance.
• Help to soften boundaries and create an increased sense of space.
• Up to seven panes wide in a variety of styles.
• Available as single and French doors.
• Four threshold options all feature fully weather-sealed rebates.
• Concealed drainage, eliminating the need for unsightly drainage cover caps.
• Pre-gasketed clip-in beads remove the need to wedge the gasket or mill beads.
• Thermlock® technology offers almost double the insulation when compared to polyamide. 
• Double glazing and triple glazing options.
• Easy-to-fit door restrictor.
• Bespoke Winkhaus thunderbolt locking.
• Slimline internal handles.
• Bespoke VBH hardware.
• Consistent 138 mm sightline between sashes.
• Pre-gasketed clip-in beads remove the need to wedge the gasket or mill beads.
• Available in 12 standard colours.
• Other colours and foil lamination available to minimum order quantities.
• Compatible with the majority of the Prestige bi-fold ancillaries.
• PAS 24 accreditation as standard and optionally Secured by Design certified.
• Part L compliant.
• Made in Britain.