It’s hard to imagine a frameless window, because chances are, you won’t have seen one before. Think wall-to-wall glass with no raised, mounted frame. So, no painted surfaces and no exposed joints
Lumi is structurally very different from an ordinary window. This physical difference along with the addition of a range of high quality, security features, automatically enhances its security.
That's right - our Lumi windows have an exceptionally low U-Value of just 0.8u for the Ug and from 0.95uw to 1.09uw depending on style of window. Two different U-Value figures are used in the glazing industry Ug = thermal transmittance of the glazing (or the ‘centre-pane’ U-Value) Uw value = thermal transmittance of the whole window - including glazing and frame
Every detail has been designed, considered and manufactured by the Lumi team in the UK, so this system exudes strength, rigidity and innovation from every angle
Whether you’re creating a new build, refurbishing or extending a home or if you’re looking for a different take on a replacement window, Lumi is a unique choice that brings design-led difference to any scheme.
“By protecting all the elements that degrade inside the glazing, we were able to create a window that looks amazing and could survive our changeable, corrosive weather.”
Lumi is wall to wall glass. With no joints, no painted surfaces, no connected materials, there’s nothing to maintain, nothing to corrode and no external weak points. Everything structural is protected within the glazed exterior, making the Lumi window system perfect for the damp, cold climate of the UK and Ireland
“My problem was that windows look the same wherever you go. They’re all little boxes that in our weather, degrade over time and let heat escape. Lumi is my solution. I quite literally turned the idea of a window inside out.”
Asa McGillian, inventor and founder of Lumi.
The latest fibreglass reduces the weight of the overall window structure, while also providing exceptional strength. This extra rigidity makes Lumi perfect for a larger than average window
The surrounding structure is packed with high density closed cell insulation. This gives Lumi extra strength and makes it extremely energy efficient
These strips of insulation are positioned between every pane of glass and help stop heat transfer
All three layers of Lumi are made from toughened safety glass as standard
The corner joints are bonded and reinforced with aluminium forming an exceptionally strong joint
Aesthetics are important to Lumi. We’ve found a way to keep the all-important outer seal while keeping it flush with the gasket.
All extra window furniture is made from stainless steel. Every element is either custom made by the Lumi team in the UK or sourced from the very finest German suppliers
As Approved Installers for Lumi Windows, Entrance Doors, French Doors, Bi-Folds and Lift-Slide Doors, we offer our dedicated survey and install service throughout South Wales including Abergavenny, Crickhowell, Usk, Monmouth, Brecon, Chepstow, Cwmbran, Newport, Cardiff and Merthyr areas and beyond