Cube Aluminium Windows

Slim Frames

The design of the window mimics the sight lines of the original steel-framed windows – 68mm frame depth makes it perfect as a replacement window, that fits within the existing plaster line

A-Rated thermal efficiency

It’s the perfect combination of exceptionally slim line window frames and the highest levels of performance

200+ RAL colours

Whatever colour finish you desire, you’ll be able to find it within our RAL colours range, complete in wood grain and metallic effects


Aluminium frames can be polyester-powder coated in a wide range of RAL colours, or can feature a metallic or anodised finish.

Our standard range of RAL colours covers some of the most popular customer choices for achieving that premium look. Though if you're looking for something different choose from a wade variety of RAL palette options, metallic, anodised or even woodgrain finishes.

SL68 Aluminium Bay Window
House With SL68 Aluminium Windows
SL68 Aluminium Windows
SL68 Aluminium Windows Reynaers Grabex
Cube Casement Windows SL68 Reynaers Grabex
Cube Casement Aluminium SL68 Reynaers Grabex
SL68 Aluminium Windows
SL68 Cube Aluminium Windows
Cube Aluminium Windows
Cube Aluminium Slimline Casement Windows Grabex
Cube Aluminium Window detail
CUBE aluminium windows in anthracite grey from Grabex Windows


Book a visit in our Orpington Showroom. Currently our showroom visits are by appointment only, so book your meeting prior to your arrival.

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Tell us about your project, so we can prepare a quotation for exceptional windows & doors that add character, style & value to your home.

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Our team is here for you and we w'd love to chat at your convenience, assist you in planning your project and finding right products for your home. 

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