SlimSASH

SlimSASH is an exclusive product from our fabricator. It features a slim, high-performance PVCu window sash made by the well-known PVCu system company, Liniar. It is the slimmest and highest-performance casement window of its kind in the UK. Like the outer frames, SlimSASH is constructed using six separate insulating chambers. This slim design allows for a larger area of high-performance glass, which enhances heat and sound insulation. Additionally, it lets more light into your home and provides a wider view outside.

Why SlimSASH?

These 70mm PVCu windows feature a unique six-chamber SlimSASH profile, designed exclusively for Whiteline and its customers.

With less profile material used, SlimSASH windows have a sleek, elegant appearance while offering a larger glass area that allows more natural daylight into the home. Despite their slim design, they maintain exceptional energy efficiency and security. The chamfered external profile includes a distinctive putty line feature, with a choice of chamfered or sculptured internal beading for a refined finish. Available in a wide range of colours and finishes, they can be tailored to complement any home’s style. These windows are internally glazed for enhanced security, with a slimline frame that maximizes the glass area. Made from high-impact modified PVCu, they resist cracking due to age or extreme cold. The fully welded frame ensures durability, while push-button, key-lockable handles, available in multiple colours, include a lockable night vent position for added functionality.

 

10,000 Satisfied Customers

SCI has been doing this for over 30 years. With around 10,000 satisfied replacement window and door customers, SCI has thrived on quality, innovation, and customer care. Our customers appreciate the no-pressure, no-hassle approach and commitment to service long after the installation has been completed.

020 8648 0426 sales@sciwindows.co.uk
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About SCI Windows

SCI has been a trusted name since the 1970s, moving to our Morden showroom in 1981 and thriving under the same dedicated management team since 1987. Our ethos is simple: providing exceptional customer service, honest advice, and top-quality, UK-manufactured products. We take pride in building lasting relationships with our customers, ensuring they feel confident and supported every step of the way. With decades of experience and a commitment to excellence, we’re here to help you make the best choices for your home. Come visit us; we’d love to share our expertise and passion with you!

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