Is it better to install double glazed windows or window film?

Is it better to install double glazed windows or window film?

Double glazing is the ultimate window insulation but one of the biggest advantages of window films is their cost.

For the typical home with 10-15m2 of windows, upgrading all the windows with a year-round window film costs between $1900 to $3000. This is approximately a quarter of the cost of double glazing and half the cost of secondary glazing. Be aware that in colder climates a window film will reduce the strength of winter sun entering your home.

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