UPVC Double Casement Window with a Fixed Central Mullion
The UPVC Double Casement Window with a Fixed Central Mullion is a traditional window design featuring two side-opening casement sashes separated by a fixed central mullion. This configuration creates a symmetrical appearance and is commonly used in residential properties, renovation projects, extensions, and various commercial applications.
At Smart Innovation, we offer a wide range of UPVC Windows solutions designed to suit different architectural styles and project requirements. The UPVC Double Casement Window with a Fixed Central Mullion remains one of the most recognised window styles due to its clean design and balanced proportions.
The window shown in the product image consists of two casement sashes positioned on either side of a fixed central mullion. Each sash opens independently, while the central mullion remains permanently fixed within the frame. This arrangement creates a structured and visually balanced window design that can complement both traditional and contemporary properties.
Features of the UPVC Double Casement Window with a Fixed Central Mullion
The UPVC Double Casement Window with a Fixed Central Mullion incorporates several design elements that contribute to its appearance and functionality.
Double Casement Configuration
The design includes two separate casement sashes positioned side by side within a single outer frame. Both sections can operate independently, providing flexibility in everyday use while maintaining a symmetrical overall appearance.
Fixed Central Mullion
The central mullion is a permanent vertical frame member located between the two opening sashes. It divides the window into two equal sections and contributes to the structured appearance of the design.
The fixed central mullion is one of the defining characteristics of this window style and helps create the traditional double casement configuration.
Balanced Window Design
The equal proportions of the two opening sections create visual balance across the entire window. This symmetrical layout makes the design suitable for a wide range of architectural applications.
UPVC Frame Construction
The frame is manufactured using uPVC and designed to accommodate the double casement configuration while maintaining a clean and consistent appearance.
Applications of the UPVC Double Casement Window with a Fixed Central Mullion
The UPVC Double Casement Window with a Fixed Central Mullion can be incorporated into various types of building projects.
Residential Properties
This style is commonly used in detached homes, semi-detached properties, townhouses, apartments, and residential developments.
Renovation Projects
Property owners replacing older window systems often select double casement designs due to their familiar appearance and compatibility with many property styles.
Extensions and Refurbishments
The balanced layout of the window allows it to be incorporated into home extension and refurbishment projects where consistency with existing architecture is desired.
Commercial Buildings
Selected commercial properties may also use this style depending on project design requirements and architectural preferences.
Design Characteristics of the UPVC Double Casement Window with a Fixed Central Mullion
The visual appeal of the UPVC Double Casement Window with a Fixed Central Mullion is based on its clean lines and symmetrical arrangement.
Symmetrical Appearance
The central mullion divides the window into two balanced sections, creating an organised and structured appearance.
Traditional Window Styling
The design has long been associated with traditional residential architecture and remains widely used across many property types.
Clear Glazed Areas
The large glazed sections on either side of the mullion contribute to a simple and uncluttered appearance.
Why Choose a UPVC Double Casement Window with a Fixed Central Mullion
The UPVC Double Casement Window with a Fixed Central Mullion continues to be a popular choice because of its familiar design and versatility.
The fixed centre mullion creates a balanced layout that works well across many building styles. The two independent opening sashes provide a traditional double-opening configuration while maintaining the overall symmetry of the window.
For many homeowners and developers, this window style offers a practical solution that integrates easily into both traditional and modern projects.
Maintenance and Care
Frame Cleaning
The frame may be cleaned using a soft cloth and mild soapy water. Abrasive cleaning materials should be avoided.
Glass Cleaning
Suitable glass cleaning products may be used according to the manufacturer’s recommendations.
Routine Inspection
Handles, hinges, seals, locking components, and other hardware should be checked periodically as part of normal maintenance.
Frequently Asked Questions
What type of window is this?
This is a UPVC Double Casement Window with a Fixed Central Mullion.
What is a fixed central mullion?
A fixed central mullion is a permanent vertical frame member positioned between two opening window sashes.
Do both sides open?
Yes. The design shown includes two side-opening casement sashes located on either side of the fixed central mullion.
What category does this product belong to?
This product belongs to the Casement Window category.
Can this design be used in residential properties?
Yes. This window style is commonly used in various residential applications.
Product Image Disclaimer
Product images are provided for illustration purposes only. Actual colours, glazing appearance, hardware, dimensions, finishes, frame details, and visual characteristics may vary due to screen settings, photography conditions, lighting conditions, manufacturing variations, image processing, and product updates. Smart Innovation recommends reviewing final specifications before placing an order.





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