Description
Aluminium Window – Design 27 – Small-Format Aluminium Casement Window
Brighten your home with our Aluminium Window – Design 27. Where the opening simply isn’t large, this Made to Measure aluminium window delivers a properly specified, secure casement window without unnecessary size — ideal for smaller rooms, utility spaces or secondary openings.
A Small-Format Configuration
Smaller doesn’t mean simplified here — this window carries the same construction standard as the larger formats in the range, just sized to suit openings that don’t call for anything more substantial.
Slim Aluminium Profile
Aluminium provides the strength and stability needed for larger window configurations while allowing for a neat, contemporary frame. Its slim appearance helps maximise the glazed area and gives the finished installation a crisp architectural look. The durable aluminium construction is also well suited to everyday residential use, with minimal maintenance required compared with traditional timber windows.
Secure Casement Locking
The opening sash is designed around a secure espagnolette-style multipoint locking mechanism, operated through the window handle. Multiple locking points engage around the opening sash when the handle is turned, helping keep the casement firmly closed and providing greater security than a simple single-point latch. The locking arrangement also pulls the sash tightly against the surrounding seals when closed, helping improve resistance against draughts and weather.
Designed for Comfortable Indoor Spaces
Large glazed areas allow natural light to enter the property, while the opening casement gives you greater control over ventilation. This makes the window particularly useful in kitchens, living spaces, bedrooms, extensions and other rooms where fresh air is important. When specified with suitable double glazing, the system can also contribute to improved thermal performance and indoor comfort. It can be paired with other double glazed aluminium windows throughout a property for a consistent contemporary appearance.
Made to Measure
Every window is manufactured according to your required dimensions, making this configuration suitable for both replacement projects and new installations. With a frame width range of 900mm to 1400mm and a frame height range of 450mm to 1400mm, the design can accommodate a variety of openings while retaining its balanced appearance.
Ideal for Modern and Renovated Properties
The combination of a slim aluminium frame, generous glazing and a practical opening section makes this window suitable for:
- Utility rooms and boot rooms
- Bathrooms
- Secondary or smaller openings
- Renovation projects with limited wall space
- Outbuildings and garden rooms
- Budget-conscious window replacements
Standard Specification
- A rated with a u value of 1.4
- Multipoint locking system
- Lockable push button window handle
- Argon filled sealed units with black warm edge superspacer bar between glass units
- High performance (patented) double-action ‘bubble’ gaskets maintain tight weather seals
- 72mm thermal efficient multi chamber aluminium frame
- Internally beaded for maximum security
- Contemporary energy efficient profile
- Fully compliant with the Part L Building Regulations
- 10 year profile guarantee
Dimensions
- Frame Width (min-max): 900mm – 1400mm
- Frame Height (min-max): 450mm – 1400mm




