Our Royale Steel Replacement Windows replicate the traditional styling, slimness and features of traditional steel windows so closely that you will never notice the difference. The slim design means no cutting back plaster, brick work or existing wooden subframes on installation.
Using the latest inline polyamide thermal break and krypton gas filled sealed units, they exceed the current building regulations with a window energy rating (WER) of ‘A’. The window is thermally efficient, highly secure and has passed BS7950 for enhanced security.
... the outerframe is just 33mm deep, and it achieves an 'A' Window Energy Rating......