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Optima is an efficient to fabricate and easy-to-fit PVC-U window and door system that has been designed to look better and perform better than any other system on the market. It gives you a clear competitive advantage whether you work in the domestic replacement, new build, refurbishment, commercial or public sectors.


Casement window

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Flush Casement window

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Tilt & Turn window

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Flush Tilt & Turn window

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Fully Reversible window

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Vertical Slider window

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News update

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Epwin Window Systems becomes a member of the GGF Federation

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Epwin Window Systems’ Katrina Earl promoted to Sales Director

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Sekura Commercial Ltd signs a new three-year exclusive supply agreement with Epwin Window Systems

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Epwin Window Systems publishes guide to the changes to Part F

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Optima windows and doors specified for townhouse development in Sheffield

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Systems ready for new Part L requirements for Epwin Window Systems