Sieger Casement Doors

Elegant frames and contemporary finishes


The Sieger Casement Doors can be fabricated into a range of configurations including a single opening door, a double door and French or Belgium doorsets (with fixed sidelights). The elegant aluminium frames create a contemporary finish whilst the inbuilt thermal break and insulated glass ensures high levels of performance. The aluminium frame can be finished in a wide range of RAL colours to produce the required design. This casment door can be used in conjuction with any of our other aluminium products for a full glazing package.  

Sightline: 147mm across vent and frame

Thermal Insulation: Uw values from 1.8 W/m2K 

Security: PAS 24 Compliant 

Max Opening Size: 1.4m wide x 3m high for single door

Configurations: single door, double door, French Door, Belgium Door, doors with overlights

Glass Specification: glass thickness 25-34mm, maximum weight 150kg per unit

Weather Protection: fully tested, air (2), water (5A), wind (C3)

Pair these aluminium casement doors with the Sieger Balustrade System to create Juliet Balcony doors for upper storeys. The Sieger Slim Casement and Sieger HD Casement work well with this casement door to form a full glazing package that is cohesive and matching. 

These aluminium casement doors can be created to very large opening sizes to fill wide openings. You can fill larger openings by including fixed side lights or fixed windows overhead. 

Visit the show room in Amersham to see these aluminium casement doors in person, select framing finishes and see the ironmongery options.

Visit our Showroom

The Sky House Design Centre

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Our factory is fully open for fabrication and supply only orders. Our showroom in Amersham is now open for booked appointments.

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