SHEERLINE DOORS

Open up your home and
fill it with natural light

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. They also need to offer reliable operation, while keeping heating bills low, and would-be intruders out. That is why we have designed our Prestige bi-folds to offer you the perfect balance of refined looks, exceptional thermal performance and outstanding operation. Building on years of experience, we’ve incorporated many new innovative ideas to create a refined aluminium system that’s ideal for discerning homeowners who aren’t willing to compromise. Unique Thermlock® technology provides exceptional thermal performance, while bespoke locking systems and our patented construction method provides unparalleled levels of security. These slim, perfectly balanced bi-folds are available in stepped and contemporary ‘flat-faced’ styles, in configurations up to 7 panes wide.

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. Sheerline’s cills also feature this same technology coupled with innovative in-built weather sealing keeping draughts and rain safely outside.

Outstanding security features built into 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.

We also use full length security interlocks* to protect doors from would-be intruders. So if you are looking for extra peace of mind as standard – we have you covered.