What is secondary glazing?Scroll to view

What is secondary glazing?

Secondary glazing is an additional internal window frame installed on the inside of a single-glazed window to create a second layer of glazing. Installing secondary glazing creates a minimum air gap of 50mm between the new frame and the original window to improve thermal efficiency and reduce draughts inside without changing the window’s external appearance.

Read our secondary glazing article where we cover more details.

For more information and advice on our door and window joinery services, to arrange your visit to our Tavistock workshop, or to arrange a personal site visit if you’re further afield across the UK, get in touch with the team today.

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