Red offers aluminium doors from two distinct suppliers, to exactly match your quality and budgetary requirements.


Aluminium is an ideal material to use for frames as it’s light and strong with a slim profile that maximises the glass area. The metal’s strength and flexibility allows for great design flexibility too.


Aluminium has excellent thermal and sound insulation properties and is a very affordable option when compared to other frame materials.

As it is virtually maintenance free, it is also perfect for use in more exposed locations - it does not swell, crack, split or warp over time and so offers an extended product life.


Environmental sustainability is also an attractive benefit - the recycling process of aluminium requires just five percent of initial energy, one of the highest rates compared to other metals.



One of the world’s leading producers of specialist door and window systems for over 30 years, German manufacturer Sunflex leads the way in innovation and design. Offering countless high-end features, with slim sight-lines and contemporary, square-edged profiles throughout, Sunflex aluminium doors are renowned as being the best looking on the market. Bi-fold doors, sliding doors, French doors and front doors - and the only German-made systems with a BSI Kitemark certificate.

They are also one of the most weather-tight systems available, with 900Pa water tightness (Class 9A), 600Pa BS EN 12207 air permeability (Class 4) and resistance to a wind load of 1,600Pa (Class A4). Awarded, ‘Secure By Design’ accreditation, they are designed and manufactured to police-preferred standards with multiple security features.


Sunflex also supply aluminium windows. Please note: Lead-time for Sunflex doors and windows is approximately 6-8 weeks, depending on requirements.



We also offer aluminium doors produced by Smart Architectural Aluminium, the UK’s leading supplier of aluminium glazing systems. Smart doors and windows supplied through Red are manufactured by a trusted local fabricator and offer a combination of competitive pricing and good quality (albeit not as high-end as the Sunflex option).

Smart offers an extensive product range for both domestic and commercial applications, including, entrance doors, sliding and bi-fold doors, curtain walling and windows. Items can be built to be ‘Secured By Design’ compliant if required.



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