Aluminium Casement Doors

IQ’s aluminium casement door offers specifiers the choice of large opening sizes in a contemporary aluminium frame.


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Aluminium Casement Doors

A casement door is the ideal addition to any glazing package and serves as the perfect door system to complete a rear extension or any project of the sort. 

Our aluminium doors are made from robust thermally broken aluminium profiles from our fabrication factory. With a range of profiles available we are able to offer an aluminium door to suit almost any project specification.

The standard aluminium profiles are able to create hinged aluminium doors up to 3m in height and a maximum of 1.4m wide per door opening.

With high levels of security and weather resistance in slim aluminium frames, you can create elegant side doors, rear doors or balcony doors.

Modern Casement Doors

Aluminium casement doors can be designed with an inward or outward opening as required with a low threshold door base, which is both wheelchair and pushchair friendly.

An aluminium French door configuration is the perfect option for larger openings or for modern Juliet balconies to upper floors.

The aluminium profiles can be powder coated a RAL colour to suit all project specifications. We also have a range of lever/lever handles available to choose from to ensure that your aluminium door meets your exacting requirements.

Casement Door Options

IQ offer a wide range of casement doors ranging from our classic Sieger casement door to our Sieger Lux casement range. 

It is important that expansive options are presented to ensure that you can select the correct bespoke door for your project. If you desire slim frames and minimal sight lines, then our Sieger Legacy range would be ideal for your next project.

Various configurations can also be specified for more unique openings. Our different casement ranges feature their own unique configurations to guarantee that nearly all openings can be filled. 

Sieger® Casement Doors @ Showroom

We have a variety of Sieger® aluminium casement doors on show at Sky House Design Centre. These high specification aluminium doors are fabricated at our aluminium fabrication factory, Sieger Systems. The Sieger® Range is exclusive to IQ and includes complimentary windows, bifold doors and larger framed sliding doors.

To see this IQ aluminium window and door system for yourself just contact us to arrange your appointment at the showroom.

Get in touch with the team at IQ Glass here.


Configurations and Sizes

We work with a number of aluminium systems to ensure that your aluminium door works with your project layout. All of our aluminium casement doors can be either inward or outward opening. You can also specify them as right or left hinges or as a double opening French door.

All our systems are available to a standard maximum size of 3m tall and 1.2m wide per door leaf. Larger sizes may be available on request.


Our aluminium systems have all been fully tested for weather resistance, thermal performance and security. IQ can help specify the perfect system for your project requirements.

Air Permeability Class 4 in accordance with EN 12207

Water Resistance Class 9A in accordance with EN 12208

Resistance to Wind Load Class C3 to E2400 in accordance with EN 12210

Security WK3 in accordance with EN 1627 to PAS 24: Enhanced Security Performance Requirements for Doors and Windows in the UK

Thermal Performance Uw value of 1.4 to 1.8 W/m2K using double-glazed units with Ug value 1.1 W/m2K.

Note: These details are subject to change depending on which casement door is specified. 

Handles and Ironmongery

Our aluminium casement doors are operated with multi point locking mechanisms engaged by lever lever handles and euro cylinder key locks.

We have a range of handles available to view at our showroom in Amersham for you to pick from including stainless steel and ergonomic handle designs.

The aluminium doors are hung on barrel hinges for the highest level of support and strength, allowing for large opening sizes and durability.