Energy Efficient Casement Windows. While casement windows are already highly efficient due to their design, you can make them even more energy efficient by selecting windows that offer certain traits: Low-e glass: Low-e or low emissivity glass coating is designed to bounce the sun’s rays away from the home in summer, to reduce solar heat gain.

Casement UPVC Windows

uPVC Casement Windows South Wales Suppliers Installers Casement and uPVC Sliding sash windows in South, West and Mid Wales. Replace original timber sash windows with our competitively priced uPVC sliders today. Get…

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