What Are WindowSkins?

They’re affordable, easy-to-install window insulation panels that reduce thermal energy loss at the window, the most porous component of your building. These lightweight, transparent panels from WexEnergy readily snap into place without tools and without breaking your budget. WindowSkins quickly improve your tenant’s comfort and experience without the usual fuss and mess of window replacements. With happier tenants in your buildings, your maintenance staff can stay focused on making sure your property runs smoothly and efficiently.


For less than ~20% of the cost of new ENERGY STAR® replacement windows, WindowSkins can help your old double-pane windows achieve energy performance criteria for current ENERGY STAR® windows. And if your buildings still have single-pane windows, adding WindowSkins will allow your windows to function much more like double-pane windows. You’ll love the money you save on heating and cooling while your tenants love their improved comfort – with no added disruption or construction. Your windows will still open and close as before, and you’ll be ready to meet tough new building codes aimed at reducing carbon emissions.

How does a WindowSkin work?
WindowSkins work by trapping a pillow of air between your existing window and your custom-fitted WindowSkin, just like the pockets of air in a down comforter or jacket. But that’s not all. WindowSkin’s insulating air gap is engineered to optimize energy performance.

WindowSkin improves the efficiency of your existing windows without adding significant cost, weight or complexity. WindowSkin’s design is engineered to optimize the insulating gap is optimized once installed.

How do you maintain the insulation?

Each WindowSkin is custom manufactured to fit your window. Each WindowSkin is engineered to create a compression seal when it’s snapped on to your window. This is the secret to WindowSkin’s insulating air gap.

Have WindowSkins been independently tested?

Yes. WexEnergy will be releasing new energy performance data from a national certification laboratory very soon. Please stay tuned.

WexEnergy’s window insulation panels have been independently tested for performance. For example, a field study in Ithaca, New York showed that WindowSkins reduced natural gas usage by ~13% in a building that was already LEED-certified.


How do WindowSkins increase comfort?

WindowSkin’s insulating air gap creates a barrier that reduces thermal energy loss of conditioned air from escaping through the glass. That’s why we say WindowSkins keep heat inside in winter and outside in summer.

How do WindowSkins increase usable space?

WindowSkins let your tenants reclaim valuable space near windows for seating and other uses because occupants are more comfortable near WindowSkin dressed windows.

Here’s why: Windows are the most energy-porous component of a building’s envelope (exterior walls, windows and roof.) In wintertime, people feel chilled when they’re within six feet of a window with a surface glazing temperature below  54° F.  When this happens, occupants naturally avoid sitting close to windows.

The converse is true in hot climates where our soon-to-be-released SolarSkinTM  will help by keeping conditioned cool air inside.

How can transparent window panels reduce utility bills and insurance costs?

Building occupants often run fans, space heaters or electric blankets to improve their comfort when they are too hot or too cold. All of these conveniences add to electricity usage, increasing utility bills. These units are often run 24/7, increasing utility costs and your insurance risks.

Compared to other window retrofits, why are WindowSkins easier to install?

WindowSkins install directly on to the window-pane so you don’t have to worry about disturbing lead paint. No tools, hairdryers or tape required because WindowSkins simply snap onto the inside window-pane. Prep and installation of the window takes about 5-6 minutes for a typical double-hung or slider window.

Some interior window retrofits require you to drill into or attach to the window frame or sash. Others use a compression fit which may rub against painted window frames. You may even have lead paint underneath all those layers of paint if your building was constructed before 1978. If you do, be aware that disturbing lead paint creates very fine dust particles which require specialized and costly environmental remediation. 


How do WindowSkin’s packaging and shipping costs compare to other window solutions?

WindowSkins weigh-in at ~15% of competitor’s products. That means we can ship 7-10 WindowSkins for the same cost our competitors ship a single unit. Lower shipping costs also mean that your shipment uses less fossil fuels to reach your building, thereby contributing less to carbon emissions.

But will my building still be code compliant if I install WindowSkins?

YES. WindowSkin meets NYC’s Building Code standard for Class A Products as well as NYC-DOB’s newly issued guidelines for window retrofits.  WexEnergy submitted WindowSkin to NYC’s Dept. of Buildings for code review because NYC has one of the most stringent building codes in the world. And if you can make it in New York, you can make it anywhere! That would make a great song…


But will my windows still open?

You can use your windows just as you did before because WindowSkins were installed because they don’t change the way you or your tenants interact with your windows. And in cases of true emergency, any window dressed with WindowSkin remain accessible to tenants and emergency personnel.

What do WexEnergy’s window insulation panels look?

WindowSkins look great. Their designed to blend into the window so that they practically invisible. In fact, you’ll probably only notice them when you look very closely at their edges.

What is a WindowSkin made of anyway?

WindowSkins contain clean, safe, and sustainable materials that are Greenguard® Certified. In fact, the primary material is also used for COVID face masks in medical settings. Greenguard® technology means there no volatile organic compounds (VOCs) to vent.

Are you ready learn more? Contact WexEnergy.