UPVC Casement Windows

Casement Windows – Timeless Style, Modern Performance
Casement windows remain one of the UK’s most popular window choices, and with good reason. At Showcase Plastics, we supply cutting-edge uPVC casement windows, designed with a multi-chambered profile that reduces the need for steel reinforcement, while boosting energy efficiency and performance.
Built with bubble gaskets as standard, these windows are expertly engineered to eliminate draughts and enhance thermal insulation, making them a great choice for homeowners looking for comfort and reliability.
Highly versatile, these windows can be customised to suit almost any setting. Whether you’re after fixed or opening panes, side or top-hung sashes, bay or bow windows, or even French-style openings for larger spaces or fire escape routes, we’ve got you covered.
Choose from the Standard 70mm or EnergyPlus profiles, or go for the future-ready Zero|90 range offering next-level energy efficiency.
With slim sight lines that allow more natural light into your space and the option for double or triple glazing, these windows combine performance with visual appeal. Want to personalise the look? Add mock sash horns, astragal or Georgian bars, or opt for decorative glass to match your home’s style, traditional or contemporary.