Transform your home with high performance aluminium windows
Choosing the right windows for your home is an important decision. An investment that makes a real difference to how warm and secure you feel; as well as changing the look of your property. This is why Sheerline have designed their Classic system from the ground up. Building on years of experience, they’ve incorporated many new innovative ideas; creating a warmer, slimmer and more secure window system. Designed for discerning homeowners that aren’t willing to compromise, thier windows are tailored to those who demand more for their home.
Built around an innovative Thermavic® multi-chamber thermal break, Sheerline windows use a patented construction method that offers unsurpassed levels of security. Creating windows that are strong and durable, yet with slim frames that maximise the light flooding into your home. Sheerline aluminium windows are also available in a wide range of colours, letting you express your home’s character.
Designed to combine the latest technical innovations with peerless aesthetics


A choice of traditional or contemporary styling
Sheerline aluminium windows are available in a choice of two opening sash styles; ‘Stepped’ – inspired by traditional steel windows – and ‘Contemporary’ with a more modern minimalist aesthetic. Both styles are available in either our standard outer frame, or as a ‘Flush’ option that brings both the perimeter and the opening sash perfectly in-line with each other.
All available in a range of colours and finishes to suit every home
Sheerline’s Classic range of windows are available in eight powder coated, matt colours, with the option of choosing a different colour for the interior to help you find the look that is right for your property. A further three anodised finishes are available for the ultimate durable and stylish finish.

With great looks from every angle – due to our unique construction method
The ultra slim 59mm sightlines of the innovative Classic window system maximises the light flooding into your home, creating a refined architectural look. While our patented construction method – using threaded screws to bind corners tightly together in perfect unison – creates perfect run through mitres on internal joints, doing away with the unsightly junctions of square cut beads seen on ordinary aluminium windows. We’ve also designed out the stepping of misaligned corners, allowing each Sheerline window to be individually hand tuned to perfection. Leaving you with the perfect balance of understated refinement and exacting quality standards.
Proudly designed and manufactured in the heart of the UK
From design and testing, to the manufacture of every major component, Sheerline are passionate about each element that goes into producing the their Classic window system. Delivering windows that operate, perform and look exceptional, keeping you warm and secure for years to come.






