LUMI ALUMINIUM WINDOWS

Transform your home with Lumi’s all-glass design

Lumi’s iconic frameless look and super slim sightlines are now available in easy-to-handle aluminium units, designed with the wishes of window installers in mind. Available in both double and triple-glazed, the new aluminium glazing system makes for a lighter, slimmer window that retains its designer good looks, improves efficiency and home security, and are easy to install. These qualities make Lumi windows perfect for replacements in the home improvement market.

View Our Window Range Brochure

Double & Triple Glazed Aluminium Windows

Lumi’s window system is available in replacement-perfect double-glazed units and ultra-efficient triple-glazed units. Lumi Double Glazed is lighter, easier to handle with a fine border and generous sightlines making it perfect for all uses, particularly when replacing traditional uPVC frames. Lumi Triple Glazed is a slim design with soundproofing and energy efficient qualities, making for the perfect solution if your windows are exposed to harsh elements. The perfect combination partner with the double-glazed version.

For free practical advice – Enquire Now

Renovation, Replacement & New Build Projects

Whether you’re tackling a full construction project by renovating your existing property, building a brand-new home or replacing old uPVC windows, a Lumi window system will enhance the aesthetics of your property, as well as making it more secure and sustainable. To complete the look, the Lumi range also includes lift & slide doors and roof-light windows.

Find Out More About Lumi Projects

Replace and transform

Use the slider below to see the Lumi aluminium window system transformation

56mm double glazed.
The perfect replacement window.

Steel reinforced slimline design is ideal for brick facing walls with no cavity or reveal.
Ideal for single glazed replacement, large format windows spanning 1m+.

View in 360

56mm double glazed.
The perfect kitchen or bathroom replacement window.

Thermal reinforced slimline design, ideal for smaller bathrooms, en-suites or kitchens.
Five-chamber nylon thermal insert reduces convection, heat loss and steaming up in moist room environments. 1m maximum span. PVC outer, strong fibreglass inner and frame means steel insert not required.

View in 360

72mm double glazed.
The perfect replacement window.

Steel reinforced design ideal for brick facing walls with a cavity or reveal.
Ideal for single glazed replacement, large format windows spanning 1m+.

View in 360

72mm double glazed.
The perfect kitchen or bathroom replacement window.

Thermal reinforced design, ideal for smaller bathrooms, en-suites or kitchens.
Five-chamber nylon thermal insert reduces convection, heat loss and steaming up in moist room environments. 1m maximum span. PVC outer, strong fibreglass inner and frame means steel insert not required.

View in 360

56mm triple glazed.
The perfect north-facing, harsh elements large window.

Triple glazed steel reinforced slimline design, ideal for larger windows exposed to north winds and little sunshine. Perfect for new-build, extension and overexposure replacement. PVC outer, aluminium sash.

View in 360

56mm triple glazed.
The perfect north-facing, harsh elements bathroom or kitchen window.

Triple glazed thermal reinforced slimline design, ideal for bathroom and kitchen windows exposed to north winds and little sunshine. Five-chamber nylon thermal insert reduces convection, heat loss and steaming up in moist room environments. Perfect for new-build, extension and overexposure replacement. PVC outer, aluminium sash.

View in 360

72mm triple glazed.
The perfect north-facing, harsh elements large window.

View in 360

72mm triple glazed.
The perfect north-facing, harsh elements bathroom or kitchen window.

Triple glazed thermal reinforced design, ideal for bathroom and kitchen windows exposed to north winds and little sunshine. Five-chamber nylon thermal insert reduces convection, heat loss and steaming up in moist room environments. Perfect for new-build, extension and overexposure replacement. PVC outer, aluminium sash.

View in 360

Lumi aluminium double glazed.
The great all-rounder.

Our slimmest ever design, with a fine border and generous sight lines mean it’s perfect for all uses. The strength and durability of aluminium make it our most popular current model.

View in 360

Lumi aluminium triple glazed.
The great all-rounder’s perfect partner.

Slim design with the soundproofing and energy efficiency of triple glazing, this window is perfect for windows exposed to harsh elements, making it a great combination partner with the double glazed version.

View in 360

80mm triple glazed.
The ultimate window.

The ultimate in energy efficiency, strength, security and sound reducing performance. With an all fibreglass construction that’s fully insulated inside and out, it’s perfect for large new-builds and very large feature windows.

View in 360

Fall in love with Lumi

Everyone loves the Lumi look and
how it transforms their home.

Free Advice Today! Find out more about how you can replace the windows in your home and start your Lumi transformation

Enquire Now

Looks smart. Thinks smart.

Lumi is designed to look great, but also to perform beyond the norm.

Gust proof hinges

Lock Lumi in place when it’s open and that’s exactly where it stays, no matter how strong the wind blows.

Super-secure protection

Lumi has a steel reinforced internal structure to keep what’s outside where it belongs.

Virtually airtight

Double gasket technology seals Lumi in place, making it much more energy efficient than framed windows.

Available as roof windows

Lumi’s super-secure, easy-clean design is also available
as a roof light window.

Explore Lumi Design Features

Lumi’s beauty is more than surface deep. Explore the
smart technology that makes it possible.

Learn More

Big picture thinking

Lumi is picture perfect when you want a large
expanse of glass to maximise the view. A single pane
of Lumi can stretch up to 3 metres wide by 2 metres
tall (picture windows). Breath-taking, both inside and out