"beautiful aesthetics with exceptional thermal performance and security"
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"beautiful aesthetics with exceptional thermal performance and security"
beautifully balanced aluminium bi-folding doors, available in configurations up to 7 panes wide.
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open up your home and fill it with natural light
Prestige bi-folds enable you to open up and transform your home. Providing that all important flexibility to enjoy your indoor and outdoor space as one. Combining the refined, architectural look of aluminium and the latest thermal and security technology, leaving you with beautifully balanced bi-folding doors.
Bi-folding doors should maximise the light flooding into your home, and the enjoyment of your garden or patio. Bringing an improved sense of space and creating panoramic views that can transform interiors.
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a choice of two styles
slim, perfectly balanced bi-folds, available in stepped or a contemporary style
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U-value, double glazed 1.4, triple = 1.0
Thermal transmittance, also known as a U-value (W/(m²K), measures the rate of transfer of heat. The better-insulated your bi-folding door is, the lower the U-value will be. Available with up to 44mm triple glazing for the ultimate thermal performance. Triple glazing can also provide exceptional acoustic dampening to block out unwanted noise. * Triple glazed U-value for stepped sashes 1.1
4 threshold options, all fully weather-sealed
Prestige aluminium bi-folding doors come with four threshold options all featuring fully weather-sealed rebates that keep the worst of the British weather safely outside. These rebates also ensure doors aren't over-centred during operation, helping locks to engage correctly.
Exceptional thermal performance with Thermlock® technology
Our innovative Thermlock® multi-chamber thermal design, hidden away inside each Prestige bi-folding door, helps keep you well insulated against the worst of the UK weather. These closed-cell, insulating chambers act as thermal breaks, working in conjunction with high performance glazing to create class leading thermal performance, far superior to traditional polyamide thermal breaks.
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bring the outside in...
Prestige bi-folds can help soften boundaries, creating an increased sense of space and a seamless transition between your garden and the inside of your home.
Slim, equal 138mm sash-to-sash sightlines ensure light bathes your interiors, even when your doors are closed. Giving you bright airy interiors no matter what style or configuration you choose.
outstanding security features in every bi-fold, keeping you and your home safe
From bespoke Winkhaus Thunderbolt locks, to custom-designed VBH hardware, every element of the Prestige bi-fold has been designed to keep you and your home secure. All our lock options, including our high security Ultion lock upgrade - offer anti-snap, anti-bump and anti-pick protection while our patented† corner jointing method creates exceptionally strong frames, maximising the inherent strength of Sheerline's aluminium construction.
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smooth gliding track & rollers
One-piece stainless steel tracks in the head & threshold incorporate concealed drainage to ensure smooth and reliable operation, while VBH hinges rated to 120kg help keep every sash perfectly aligned during use.
slimline internal handles
Slimline internal handles continue the clean lines of the Prestige bi-fold, folding away when not in use. Flush styling also perfectly matches flush Classic and Prestige windows, creating a unified look across your property.
balanced aesthetics
Custom designed single rollers eliminate the need for floating mullions. Ensuring whatever your style of door, our bi-folds have consistent 138mm sightlines between sashes, creating our trademark balanced look.
