Cii Design - quality at affordable prices

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Patio Doors

Our superior range of uPVC Casement windows offer the very highest levels of security and thermal performance.

With ultra-slim sight lines, clean and modern aesthetics our stylish casement windows enhance the beauty of any property.

Our Casement windows can be supplied with Yale high-security Shootbolt locking, which offers a Lifetime Security Guarantee, 10-year mechanical guarantee, is accredited by Secured by Design and tested to the latest BSI security criteria.

Our revolutionary range of multi-chambered EnergyPlus profiles offers superior heat retention and structural rigidity.

Our state of the art window system has been engineered to be capable of achieving high WER ratings and low U-values, meaning lower heating bills and higher property value. Double glazing: WER as high as A+14. U-value as low as 1.3 W/(m²-K) Triple glazing: WER as high as A+25. U-value as low as 0.9 W/(m²-K)

Casement windows are 100% lead-free and entirely recyclable, thereby reducing environmental damage and meeting EU and UK legislation ahead of time.

All Casement windows are guaranteed not to warp, split or discolour for a minimum of 10 years from the date of installation.

Our Casement windows offer more than just a beautifully designed product as they have been specifically designed to meet exacting standards of homeowners.

Features & Benefits

Designed from the ground up, our patio doors are stylish and secure offering low profile thresholds to cater for the needs of today’s homeowner.

Windows that pass the test

You and your home are valuable and at TruFrame we take this very seriously. That’s why we offer Yale locking on our window products as they are one of the most recognised and respected names in home security.