Technical & Trust Hub.
Total transparency in engineering. Explore our warranties, technical specifications, and safety accreditations.
FENSA Certified
Industry standard for replacement windows and doors in England and Wales.
BSI Kitemark
The ultimate symbol of quality and safety for glazing products.
Secured by Design
Police-backed initiative focused on crime prevention through architectural design.
Constructionline Gold
Verified excellence in health and safety, environment, and quality management.
The Alumise Guarantee
A Decade of Absolute Confidence.
Every Alumise installation is backed by a comprehensive 10-year structural warranty. We don't just walk away once the job is done; we manage the asset lifecycle through proactive support.
10-Year Structural Integrity
Covers frames, structural glass seals, and load-bearing components.
5-Year Hardware & Seals
Covers locks, hinges, and weatherproofing gaskets.
Post-Installation Support
Direct access to our engineering team for any operational adjustments.
Download
Technical Documentation
Thermal Performance
Estimator.
Adjust the system parameters to calculate the estimated whole-product U-value. Alumise systems are engineered to exceed Part L building regulations.
Estimated U-Value
W/m²K
Performance & Sustainability
Technical Benchmarks.
U-Value Excellence
Our systems are engineered to achieve U-values as low as 0.8 W/m²K, significantly exceeding current Part L building regulations.
Security Class RC3
Available systems tested to Resistance Class 3, providing high-level protection against forced entry attempts.
Eco-Engineering
We prioritize high-recycled-content aluminium and sustainable timber sources (FSC/PEFC) to minimize project carbon footprints.
Elite Systems Partners
Need Detailed Technical Specs?
Our engineering team can provide full CAD blocks, U-value calculations, and structural simulations for your specific project.
Request Technical Pack