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What is Planitherm?

Planitherm is a modern, energy efficient glazing system that uses glass coatings to keep internal warmth and absorb heat from natural light. Using Planitherm means that you can have A-Rated Window systems for the same price as a less energy efficient window system. Installing A-Rated windows can save you up to 28% a year on your heating bills. If you require the most energy efficient windows, ask Simply Frames for Planitherm.

How does Planitherm work?

Planitherm glass has a special coating that allows heat from outdoors to pass through the exterior but reflects heat from the interior, this allows for maximum energy efficiency as little or no heat is lost and heat is gained from the sun.

For further information ask us about Planitherm or visit

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As one of the UK's leading manufacturers & distributors of top quality double glazed windows, UPV conservatories and replacement doors, installing Signature brand windows, doors and conservatories, is without doubt, a sound investment. Adding immediate value to your property; improving appearance and security; and increasing the efficiency of your home.