High performance aluminium windows and doors from Sheerline

Market leading

Benefits of Sheerline aluminium products

• Exceptional Security: PAS24 compliant as standard and Secured by Design accredited, featuring patented corner-jointing for maximum structural integrity.
• Superior Insulation: Built with unique Thermlock® multi-chamber thermal breaks, keeping your home warm while significantly reducing energy bills.
• Ultra-Slim Aesthetics: The Classic range offers incredible 59mm sightlines—among the slimmest on the market—perfect for replacing traditional steel windows.
• Bespoke Finishes: Available in a vast range of durable powder-coated colours and finishes to complement your property’s unique character.
• Weather Resistance: Precision-engineered to withstand the harshest British weather, featuring concealed drainage and high-performance seals.

At Global Windows, we provide a comprehensive range of Sheerline products, including Prestige bi-fold doors, Panoramic sliding patio doors, and the ultra-slim Classic window range. We also supply high-quality composite doors, conservatories, orangeries, and roof lanterns.

Your local home improvement specialist

Why choose Global?

When you want to improve your home, Global Windows are the company to call. Possibly the best way to build a company’s reputation is through positive customer reviews and recommendations. In an independent survey by the CPA, 98% of our customers rated us as an excellent company. We also have numerous positive customer testimonials and are accredited by respected third party industry bodies. We are one of the only companies in the local area to be both a Which? approved trader and to be registered with Check a Trade.

At Global Windows, all our installers are highly qualified and have a wealth of industry experience. In the unlikely event that you experience a problem, we will take full responsibility. We provide a 10-year guarantee on the majority of all our products and a 10-year insurance backed guarantee through the CPA. This helps to give you, the customer, peace of mind that your investment is protected. For doors in Yorkshire, make Global your first choice.