

Part Q Window System
Build and Comply
Engineered specifically for modern residential developments and projects requiring Approved Document Q compliance.


PART Q SUITE
Key Features
Designed for new-build and compliance-led projects, the Part Q Suite delivers modern performance, security and efficiency without compromising on traditional sash window aesthetics.
PART Q & PAS 24 COMPLIANT
Engineered to meet Approved Document Q (security) and L (conservation of fuel and power) for new-build projects.
ENHANCED SECURITY
Multi-point locking, robust astragal bars and toughened glass as standard for increased protection and peace of mind.
EXCELLENT THERMAL PERFORMANCE
Advanced double glazing and precision engineering help reduce heat loss and improve energy efficiency.
ACOUSTIC PERFORMANCE
Quality glazing and tight seals help reduce external noise for a more comfortable living environment.
PREMIUM Accoya® TIMBER
Manufactured using Grade 1 Accoya timber for outstanding durability, stability and resistance to movement.
FACTORY FINISHED
Expertly finished in our facility for a consistent, durable and low-maintenance finish in any RAL colour.


Expert guidance for every project
Access expert guidance on building regulations, thermal performance, planning requirements and sash window specification.
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Whether you're working on a new-build development, period renovation or heritage conservation project, access expert guidance designed to simplify specification and installation.
Understanding Part Q Compliance
Sash Window U-Values Explained
Window System Comparison Guide
Conservation Area Requirements
Technical Specifications for Windows