Sliding Sash Windows

Proglaze Windows offers beautifully crafted sliding sash windows that combine timeless elegance with modern performance. Perfect for both traditional and contemporary homes, our sash windows provide the charm of classic design while incorporating the latest technology for energy efficiency, security, and ease of use.

Traditional Style, Modern Performance

Our sliding sash windows are designed to replicate the authentic look of original timber sash windows but are made using advanced uPVC or aluminium materials for superior durability and insulation. The smooth sliding mechanism allows both sashes to open vertically, providing excellent ventilation and easy cleaning without compromising on style.

• Classic Design: Add a touch of period charm to your property with traditional aesthetics that suit heritage and modern homes alike.
• Energy Efficient: Our sash windows feature multi-chambered frames and high-performance glazing to help reduce heat loss and lower energy bills.
• Low Maintenance: Unlike timber, uPVC and aluminium sash windows will never rot, flake, or warp — just occasional cleaning keeps them looking new.
• Secure and Safe: Fitted with advanced locking systems for complete peace of mind.
• Customisable: Available in a wide range of colours, finishes, and glazing options to complement your home perfectly.

Why Choose Sliding Sash Windows?

Sliding sash windows are ideal for those who want to preserve the heritage appeal of their property while enjoying the benefits of modern materials and technology. They’re particularly popular in period homes, conservation areas, and city properties where maintaining a traditional aesthetic is important. However, their elegant design and slim frames also make them a stylish addition to newer builds.

With optional features like decorative glazing bars, sash horns, and tilt functions for easy cleaning, our windows offer the perfect blend of beauty and practicality.