
Aluminium Casement Windows at a Glance
- Minimal sightlines for maximised views and natural light
- WER rating A with U-values as low as 0.9 W/(m²K)
- PAS24:2022 compliant with high-security locking systems
- Extremely durable and hard-wearing aluminium construction
- Advanced thermal break technology prevents cold transfer
- 28-40mm Glazing Options that are compatible with double and triple glazing
- 10-Year Guarantee - Comprehensive warranty for peace of mind

Why Choose Aluminium Casement Windows For Your Home
NOW Aluminium casement windows offer a way to reimagine your living space with superior performance and stunning aesthetics. These precision-engineered windows provide exceptional views while maintaining the highest standards of security and energy efficiency.
The ultra slim design provides minimal sightlines that maximise your view and create bright, airy interiors all year round. Even when closed, these slender profiles ensure maximum light while maintaining excellent thermal performance.
Our marine grade aluminium construction ensures your windows will withstand the elements for decades to come, while the advanced thermal break technology and high-performance glazing work together to achieve impressive energy efficiency ratings. This exceptional insulation helps maintain comfortable temperatures year-round, potentially reducing your energy costs.

Bespoke Casement Windows
At NOW Aluminium, we are dedicated to providing you with an incredible product and experience.
Our team of installation and design experts will help you choose the perfect casement windows to suit your aesthetic and architectural needs.



Highest Quality Aluminium
Aluminium has become the material of choice for premium casement windows, and for good reason. Its exceptional strength allows for slimmer frames and larger glass areas, while its durability ensures your windows will look great for decades with minimal maintenance.
Our marine grade aluminium is highly resistant to warping, corrosion, and weather damage, meaning your windows will operate smoothly in all conditions. Unlike timber, they don't need painting or staining to keep them weatherproof, and they won't rust, rot, peel, or flake.
Casement Windows For Homeowners and Tradesmen
At NOW Aluminium, we cater to both tradespeople and homeowners. Our supply-only service enables us to provide the highest quality aluminium casement windows at incredibly competitive prices.
We also offer exclusive account management and bulk ordering options to all our trade customers while homeowners can rely on our expert advice and design support to ensure a seamless experience.
Though we don’t offer installation services, we can connect you with highly qualified local fitters to ensure a smooth and painless installation experience.
Supreme Energy Efficiency
All configurations come with comprehensive weather sealing using specially designed perimeter seals, with optional weather piles for lower thresholds. Weather tightness is tested to British standards for your peace of mind.
With our advanced thermal break technology, our windows achieve a WER rating A with U-values as low as 0.9 W/(m²K) which allows you to be confident in an incredibly insulated product.
NOW ALUMINIUM
Quality Assurance and Warranty
Our windows are manufactured in the UK using the latest techniques and are hand-finished to ensure the highest quality. That is why we are confident to provide all customers with a 10-Year Guarantee and comprehensive warranty coverage.
Contact NOW Aluminium today for expert advice and a personalised quote for your premium aluminium casement windows.























