Windows & Heritage Windows

Windows & Heritage Windows

Aluminium Window Systems for Modern & Heritage Projects

High performance aluminium window systems designed to combine contemporary styling, long term durability, and exceptional thermal performance across a wide range of residential development, commercial, and refurbishment projects.

At Complete Aluminium Systems, we manufacture and supply aluminium windows and heritage window systems for architects, developers, contractors, and installation professionals. From contemporary new build developments to heritage refurbishments, our systems are designed to deliver the perfect balance of aesthetics, performance, and practicality.

With a variety of styles, finishes, glazing options, and configurations available, our aluminium windows can be tailored to meet the specific requirements of each project while maintaining the highest standards of quality and reliability.

  • Slim Sightlines – Maximise natural light while creating a clean, modern appearance.
  • Exceptional Durability – Manufactured from premium aluminium for long lasting performance.
  • Low Maintenance – Resistant to corrosion, weathering, and everyday wear.
  • Enhanced Security – Designed with modern security features and high performance hardware.
  • Thermal Efficiency – Engineered to help meet current building regulations and energy performance requirements.

Heritage Windows

Traditional Character with Modern Performance

Our heritage aluminium window systems are designed to replicate the appearance of traditional steel windows while delivering all the benefits of modern aluminium construction.

Ideal for refurbishment projects, conservation sensitive developments, period property renovations, and design led schemes, heritage windows offer an authentic aesthetic without compromising on performance, security, or durability.

Carefully engineered slim sightlines and traditional styling details help preserve architectural character while meeting the demands of modern construction standards.

Key features:

  • Traditional Steel Look– Replicates the elegant appearance of classic steel window systems.
  • Slim Profiles – Maintains the refined sightlines associated with heritage architecture.
  • Modern Aluminium Construction – Combines strength, durability, and reliability with timeless design.
  • Low Maintenance – No rusting, warping, or extensive ongoing upkeep required.
  • Improved Performance – Enhanced thermal efficiency, weather resistance, and security.

Common applications include:

  • Conservation and heritage led developments
  • Refurbishment and restoration projects
  • Period property renovations
  • Barn conversions and character buildings
  • Design focused residential developments
  • Commercial and mixed use heritage schemes

With a wide selection of glazing options, colours, finishes, and configurations available, each system can be tailored to meet the specific requirements of your project.

Precision Manufactured

Every window system is manufactured with precision and attention to detail, ensuring consistent quality, reliable performance, and a premium finish.

Designed to meet modern performance standards while respecting traditional architectural aesthetics, our aluminium window systems provide a practical, long lasting solution for both contemporary and heritage focused projects.

Optio Systems

Reliable, Versatile, and Cost-Effective

Our aluminium windows are manufactured using the trusted Optio system from AluK.

This system offers excellent performance, slim sightlines, and strong security, making it suitable for a wide range of residential and commercial applications.

Optio 58BW TBT HI Tilt-Before-Turn

The Optio 58BW TBT Tilt-Before-Turn window combines versatility, safety, and modern design. Its dual-function opening allows you to tilt for secure ventilation or fully open for easy cleaning and access.

With clean lines and a range of configurations, it suits both new build and refurbishment projects. Available in a variety of colours and finishes, it can be tailored to your space.

Engineered for performance, it offers excellent weather resistance, with PAS24 and Secured by Design accreditation for added security.

58BW ST Flush HI Window

The 58BW ST Flush window delivers a sleek, modern appearance with slim sightlines and a clean, flush finish. Designed for contemporary homes and refurbishment projects, it offers flexible configurations to suit a range of applications.

A double rebate enhances weather performance, ensuring reliability even in exposed conditions. Built using proven 58BW system components, it provides consistent quality and durability.

Combining strong thermal efficiency with secure performance, this system offers a practical and stylish solution for modern aluminium window design.

TRL90 Rooflight

The TRL90 rooflight is a slimline aluminium system designed to maximise natural light while maintaining a clean, modern look. Its bonded glazing and single-profile design provide strength, thermal efficiency, and a refined finish.

Available in double or triple glazing, it can be tailored to suit different project requirements, with a wide range of RAL colour options.

Ideal for residential and commercial spaces, it introduces natural light without adding height, creating brighter, more open interiors.

Built on Experience. Delivered with Precision.

With over 30 years of industry experience, we understand what our customers need from a supplier: reliability, consistency, and quality at every stage.

  • Proven Expertise – Decades of experience in aluminium fabrication and supply.

  • Approved Alunet Fabricator – Manufacturing and supplying premium aluminium systems engineered for performance, reliability, and modern construction projects.

  • Approved AluK Fabricator – Working with trusted, high-performance systems used across the UK.

  • Competitive Trade Pricing – Supporting installers, developers, and contractors with cost-effective solutions.

  • Fast, Reliable Lead Times – Helping you keep your projects on schedule.

  • Technical Support – Guidance from specification through to installation.

  • South of England Coverage – Based in Hampshire, delivering across the region.

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Start Your Project with Confidence

Whether you are planning a new build, renovation, or commercial development, Complete Aluminium Systems provides the products, expertise, and support to help you achieve the best results.

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