Casement windows remain one of the most popular window styles in both traditional and contemporary properties. Whether you’re renovating a period home or upgrading to sleek, modern fittings, understanding what comes in a casement window set is essential to ensure smooth operation, enhanced security, and a polished aesthetic.
In this guide, we’ll break down the components commonly found in casement window sets, explain the difference between traditional and modern fittings, and offer tips on choosing or customising the right set for your project.
Introduction to Casement Window Sets
A casement window set refers to the full collection of hardware fittings required to operate and secure a casement-style window. Unlike sash windows, casement windows are hinged on the side and typically open outwards or inwards, much like a door. To make them functional and secure, they require a coordinated set of fittings.
Buying a complete set rather than sourcing individual components ensures consistency in style, finish, and compatibility. It also simplifies installation, especially for joiners or home renovators unfamiliar with the detailed requirements of window hardware.
Key Components of a Casement Window Set
While configurations can vary depending on style and security needs, most casement window fittings sets include the following essential components:
Window Fasteners
Fasteners are the primary closing mechanism for a casement window. They secure the window when closed and often incorporate a locking feature.
Traditional fasteners (e.g., monkey tail or shepherd’s crook designs) typically feature a rotating arm or latch.
Modern fasteners might offer concealed or minimalist mechanisms, often with built-in key locks for enhanced security.


Window Stays
Window stays hold the window open at varying angles. These are both functional and decorative and are essential for ventilation and safety.
Peg stays are most common in traditional settings, mounted horizontally along the bottom of the sash.
Friction or telescopic stays offer sleeker, adjustable options for contemporary designs.
Hinges
Hinges allow the sash to open and close. Inward-opening windows require different hinge types than outward-opening ones.
Butt hinges are standard for traditional windows.
Friction hinges are popular in modern applications, offering smooth operation without additional support arms.


Locks and Security Features
Security is key, particularly for ground-floor or street-facing windows.
Many sets now include multi-point locking systems, especially for insurance-approved installations.
Key-lockable fasteners or integrated locks within the fastener are common in both traditional and modern sets.
Additional features like restrictors or window alarms may be added separately or as part of upgraded packages.
Differences Between Traditional and Modern Casement Window Sets
The choice between traditional casement window hardware and modern casement window accessories depends heavily on the architectural style of the property and your design goals.
Feature
Style
Materials
Finishes
Mechanisms
Security
Traditional Sets
Ornate, period designs (e.g. monkey tail, bulb)
Forged or cast brass, bronze, or iron
Aged brass, antique black, polished nickel
Manual latch, peg stays
Key-locking fasteners optional
Modern Sets
Clean lines, minimalist forms
Stainless steel, aluminium, powder-coated metal
Satin stainless, matte black, anodised finishes
Friction hinges, concealed locks
Often integrated multi-point locking
Traditional sets are ideal for heritage properties, listed buildings, or any space where historical accuracy is important. Modern sets cater to new builds, minimalist interiors, or renovations where function and subtlety are key.
Choosing the Right Casement Set for Your Window Style
When selecting a casement window set, consider the following:
Window Type: Inward vs outward opening will dictate hinge and stay choices.
Room Usage: Bedrooms and bathrooms may require enhanced privacy or quick egress functionality.
Property Style: Stay true to the architectural context – a Georgian townhouse benefits from classic details, while a modern flat may demand sleek hardware.
Finish Coordination: Match with door handles, light switches, or other fittings for a cohesive look.
Security Needs: Ensure compliance with local building regulations or insurance requirements, especially in rental or commercial properties.
If you're unsure, speak with a hardware specialist or visit a showroom where full sets can be demonstrated.


Customising Casement Window Sets
One of the advantages of working with a specialist supplier is the ability to customise your window stay and fastener sets to meet specific requirements.
Customisation options include:
Finish matching to existing hardware or fixtures
Mix-and-match combinations (e.g. traditional fasteners with modern stays)
Handed options for left- or right-opening sashes
Keyed-alike locks for multiple windows with a single key
Bespoke lengths for longer stays or unique sash dimensions
At SDS London, we offer tailored advice and in-house support to help you build the perfect casement set — whether for a full property renovation or a single-room refresh.
Conclusion
A complete casement window set ensures your window is not only operational but secure, stylish, and in keeping with the overall aesthetic of your property. From fasteners and stays to hinges and security features, these carefully coordinated fittings provide both form and function.
Whether you're embracing the charm of traditional casement window hardware or opting for the sleek precision of modern casement window accessories, understanding what’s included helps you make informed, confident decisions.
Need help finding the right fittings for your casement windows? Visit the SDS London showroom or explore our wide selection of window stay and fastener sets online.
FAQS
What parts are included in a casement window set?
A standard casement window set typically includes a window fastener, a stay, a pair of hinges, and optional security components such as locks or restrictors.
Do casement windows come with locks and stays?
Yes, most casement window sets include stays and often feature key-lockable fasteners or additional locking mechanisms for security.
What’s the difference between a window set and individual fittings?
A window set includes all necessary components in one matching, coordinated package — ensuring compatibility and style consistency, while individual fittings may require careful matching.
Can you customise casement window sets?
Absolutely. You can customise finishes, styles, lengths, lock types, and more, depending on the supplier and your specific needs.