Liniar Casement Windows
A secure, energy efficient and visually appealing choice for homeowners.
Product Description
Bring more natural light into your home with our high-performance uPVC casement windows. Designed in a classic British style, these windows combine slim sightlines, smooth operation, and modern aesthetics to suit both traditional and contemporary properties. The ultra-slim frame design maximises the glazed area, allowing brighter interiors and clearer external views.
Engineered for daily reliability, the windows feature super smooth action, flexible configuration options, and a wide choice of glazing, finishes, and hardware — making them a versatile solution for homeowners, developers, and trade professionals alike.
Technical Info
Our casement windows are built for long-term performance, security, and energy efficiency:
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Profile System: Multi-chambered uPVC profiles for superior insulation
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Thermal Performance: Designed to achieve top-tier BFRC energy ratings
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Security: High-security shootbolt locking system
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Guarantee: 10-year mechanical guarantee on locking systems
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Hinge Protection: Stay Guard Elite device for enhanced resistance
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Hardware Durability: Stainless steel friction stays tested to 20,000 cycles
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Configuration: Wide variety of opening styles and layouts
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Ultra-Slim Sightlines
Advanced Shootbolt Security
Exceptional Energy Efficiency
Why Choose Liniar Casement Windows
Casement windows remain the UK’s most popular window style — and for good reason:
✔ Maximum Light: Ultra-slim sightlines increase glass area
✔ Energy Efficient: Multi-chambered profiles improve insulation
✔ Excellent Ventilation: Fully openable design
✔ Highly Secure: Advanced shootbolt locking system
✔ Versatile Design: Suitable for virtually any property type
Their clean lines and practical functionality make them ideal for renovations, new builds, and replacement projects.
Slim. Secure. Efficient
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Security Matters
Our shootbolt locking systems are covered by a £7,500 break in Guarantee.
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Hinge Protection
The Stay Guard Elite device withstands twice the force required by Secured By Design testing.
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Multi-chambered profiles
EnergyPlus profiles offer superior heat retention and structural rigidity
Fast and reliable service
Enjoy an efficient turnaround from as little as 7 working days on stock colours, backed by a prompt, reliable service designed for the trade — with fast quotes, simple 24/7 ordering, and over £2 million of stock profile ready to cut and manufacture to your exact sizes, ensuring your projects stay on schedule.
uPVC Casement Lead Times
The Technology Behind a Modern uPVC Window
Security and future-ready technology are central to the design:
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Shootbolt Locking System: Engineered for enhanced protection
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£7,500 Protection Promise: Coverage guarantee in the event of a break-in
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Smart Ready™ Technology: Built-in compatibility for evolving smart security
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Stay Guard Elite: Exceeds Secured by Design force requirements
Everything you need to succeed
It’s tough out there, we know. That’s why we want to give our customers the best chance to succeed by providing premium quality products at a competitive price, backed by exceptional service and support. At Window Warehouse we do all we can to help our customers achieve their goals; because we believe that your success is our success!
