Enjoy the timeless beauty of traditional sash windows with the thermal performance of modern glazing. Our double glazed sash windows are designed to maintain the elegant character of your property while delivering outstanding insulation and long-term energy savings.

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We use high-performance Low-emissivity glass (Low-E) in every unit. This specialist glazing dramatically reduces heat transfer and reflects warmth back into your home — helping to lower your energy bills and reduce your carbon footprint. We typically use Pilkington K Glass™, a trusted Low-E option that’s proven in performance and durability.