
Cold, crisp lines on the outside hide away our innovative Thermlock® multi-chamber thermal design, helping keep you and your property well insulated against the worst of the UK weather.
Thermal transmittance, also known as a U-value, measures the rate of transfer of heat. The better-insulated a window is, the lower the U-value.
The innovative system creates exceptionally strong frames, maximising the inherent strength of aluminium windows. You can also add our laminate glass upgrade.
Our innovative Thermlock® multi-chamber thermal design, hidden away inside each window and door, helps keep you and your property well insulated against the worst of the UK weather.
Thermal transmittance, also known as a U-value, measures the rate of transfer of heat. The better-insulated a window is, the lower the U-value.
Our patented corner jointing method creates exceptionally strong frames, maximising the inherent strength of Sheerline’s aluminium construction. A full depth eurogroove also enables us to offer multipoint locking.
Our team are available Mon – Sat 8:00am – 6:00pm






























UPVC tilt and turn windows can be opened in two ways: tilting inwards from the top for ventilation, or swinging inward like a door for full access.
Yes, UPVC tilt and turn windows are known for their excellent thermal performance, helping to minimize heat loss and reduce energy bills.
Yes, the tilt function allows for easy access to both the interior and exterior surfaces of the glass, making cleaning simple and hassle-free.
Absolutely, uPVC tilt and turn windows come with multi-point locking systems, providing enhanced security and peace of mind for homeowners.
Yes, uPVC tilt and turn windows can be customized to fit specific size requirements and aesthetic preferences, with various color and finish options available.
