Aluminium Windows
Durable windows for every project type
Dorwingear has been a trade supplier for many years offering a range of windows for new build, refurbishment projects and DIY. We manufacture Cortizo systems providing a full range of products for all sectors.
Why Dorwingear is the trusted choice for aluminium windows.
We are the go-to option for trade professionals looking for a fast turnaround of top-quality aluminium frames. Your projects will be completed quicker with Dorwingear with our 24-hour quotation turnaround.
We also offer an incredible customer support service and will advise on any technical help with our dedicated technical team.
Cortizo Aluminium Case Window System
Flexible and high-performance
Cortizo casement is a slimline aluminium window system available with side hung and top hung outward openings, fabricated from high grade thermally broken aluminium. We offer frames glazed or frame only, with gasket fitting to create the best energy efficient solution.
This system is highly efficient, with a thermal break zone of 32 mm and a transmittance Uw from 0.8 W/ m²K, has the British security certification PAS 24.
Great insulation due to polyamide thermal break technology
Available with security hardware and concealed hinges
Available with security hardware and concealed hinges
Wide range of finish options with dual-colour available
Tested to the stringent PAS 024: 2012
Available in standard and flush profile.
Available in a range of colours.
Rapid response. Full support. All year round.
%
Nationwide Coverage
Systems Installed Annually
Need expert support?
Let’s secure your access today!
Speak to our team for fast, professional guidance on strengthening your access control and protecting your premises.
Listen to the businesses who rely on our security every day.
Dorwingear is the trusted provider of secure access solutions for customers across the UK. From major sports venues and NHS hospitals to schools, retailers, and high-security facilities, our clients rely on us to deliver systems that protect people, property, and operations without compromise. By working in close partnership with every customer, we ensure their safety is built on expertise, reliability, and proven performance.