LUMI WINDOWS
Transform your home with Lumi’s all-glass design
Sleek, modern and fresh, Lumi totally transforms the look of your home,
no matter what sort of home it is.

I’m replacing my old windows
Start here to discover how easy it is to replace
your old windows with a Lumi system.

I’m renovating and extending
Architects and designers love Lumi’s flat surfaces and modern
style. And to complete the look the Lumi range also includes lift
& slide doors and roof-light windows.
Replace and transform
Use the slider below to see the Lumi transformation


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
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.

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
Completely flat, yet totally stand out
Lumi stories, shared by our customers on Instagram