An alternative to reglazing

Get smarter windows all year long with 3M Thinsulate™ Window Film.

Did you know that a single pane window loses 20x as much heat as the same area in an adjacent well-insulated wall?

Did you know that of all energy used to heat and cool homes and commercial buildings, 30-40% of that goes out the window?

It’s surprising just how much heat is lost through bad windows but what’s really frustrating, is if those windows can’t be replaced! Whether it’s for cost reasons or due to restrictions placed on historic registered buildings, reglazing windows isn’t always an option. So what’s a better alternative?

3M Thinsulate™ Climate Control Window Film

Enhance comfort and energy efficiency in any climate—at a fraction of the cost of replacing your windows.


Increased comfort

Helps retain warmth in the winter and cool air in the summer by increasing your window’s insulation value.


Increased efficiency

Helps provide increased insulation performance, much like upgrading single pane to double pane and double pane to triple pane windows.

Saves money

Application is much less expensive than replacing all windows and the increased insulation results in big energy savings all year round.


Easy application

Applies easily to existing window glazing and is virtually invisible, leaving the beauty of your home—and views—nearly unchanged.


Protects furnishings from fading

Provides up to 99.9% UV rejection which significantly reduces harmful UV rays, the largest cause of fading.

How it works

The efficient, cost-effective way to meet your window insulation needs.

window film diagram to show heat loss through windows

Warm in the winter

Thinsulate™ invisible insulation technology helps retain the heat keeping you warmer in the winter.

window film in summer

Cool in the summer

Thinsulate™ invisible insulation solar reflecting technology helps block the sun’s heat keeping you cooler in the summer.

Who is it for?

manor house with bad window insulation

Historic registered buildings


Newer office towers

Reduces heat and glare

Every sort of building in between!

Find out more about the easier and more affordable way to replacing windows:

Download the Glazing Survey PDF