

As the fenestration market continues to shift towards modern aluminium solutions, Astra Windows is reinforcing its reputation as a trusted partner to trade professionals with the outstanding ALUK 58BW HI Casement window range. A high-performance, installer-friendly system that blends versatility, aesthetic appeal, and premium performance.
With over 35 years of experience supplying the trade, Astra Windows is renowned for fabricating top-tier aluminium windows and doors, all manufactured in-house using premium systems from leading suppliers like ALUK, Aluna by Alunet Systems, and Jack Aluminium.


Exceptional Aluminium Windows, Backed by Astra’s Fabrication Expertise
The 58BW HI Casement system is a standout choice for installers seeking a reliable, design-flexible, and energy-efficient product. Available in a wide range of configurations; Flush, Bay, Chamfered, Heritage, Ovolo, and contemporary aesthetics. The windows are offered in single or dual colour and anodised finishes to suit any residential style or homeowner taste.
“We pride ourselves on delivering more than just windows,” says David Jackson, Managing Director at Astra Windows. “We’re offering our trade customers a robust, aesthetic, and efficient solution that empowers them to win work and install with complete confidence”.

Trade-Centric Performance Features:
- Effortless Installation: Available with frame depths of 58mm – 70mm, internal or external glazing, and project-in or project-out applications.
- Outstanding Energy Performance: U-values as low as 1.2 (double) and 1.4 (triple), B-C Window Energy Ratings, and BRE Green Guide A-rated.
- Built-in Security: PAS24 certification and Secured by Design approved for added peace of mind.
- Smart Fabrication Details: Deep head profiles for trickle vent integration, polyamide thermal breaks, and reverse rebate internal glazing, all tailored to speed and ease on site.

Why Trade Installers Trust Astra Windows
Astra Windows has always put trade installers at the centre of its operations. From pressure-free consultation to fast, nationwide delivery, the company supports projects of all sizes with unbeatable customer service and technical advice. Every product is fabricated at Astra’s Northwest based facility, giving the team full quality control and ensuring each order meets their ‘fitter-friendly, walk-away-with-confidence’ standard.
Their commitment to the trade has earned Astra a loyal customer base and glowing testimonials. “Clarity have been buying aluminium products from Astra for the past 5 years and have always been impressed with the quality. Exceptional customer care every time.”” says Lozer Heimann of Clarity Manchester.
Backed by decades of manufacturing excellence and a strong, responsive service culture, Astra Windows isn’t just following the aluminium trend, it’s leading it. With the 58BW HI Casement system, trade professionals gain access to a solution that reflects the best of today’s performance standards, aesthetic flexibility, and sustainable design.

For further information, contact the Astra Windows team:
Call: 01204 793333
Email: info@astrawindows.co.uk
Visit: www.astra-windows.co.uk