The Magic Behind Indow Windows
Multiple studies have been carried out by third-party sources testing the efficiency of Indow window inserts across a range of categories. Indow inserts have multiple functions and capabilities depending on the grade type - read the results and see the performance data of all grade types here.
Energy Efficient Insulation
AVERAGE ENERGY SAVINGS
Two independent studies carried out by the U.S. Department of Energy and Portland State University's Green Building Research Laboratory found reductions of 20% to energy consumption when using Indow window inserts, significant savings that allow for lower heating and cooling bills.
Noise Reducing Insulation
Indow window inserts reduce outside noise penetration by up to 70%. This was tested in a study conducted by the British Columbia Institute for Technology, as well as by Portland State University's Green Building Research Laboratory. Be it over single or double-pane windows, Indow inserts are proven to dramatically reduce noise.
PEAK NOISE REDUCTION
UV Light Protection
UV LIGHT BLOCKING
Indow Museum Grade inserts are UV protection for windows to prevent wood floors, furniture, and artwork from fading, saving you the cost of replacing damaged items. These interior storm windows block 98% of the damaging UV radiation coming through your windows.
Total Blackout Solution
Sleep Panels seal out light for total darkness and also block up to 50% of noise coming through windows* to create an ideal sleep environment. Unlike blackout curtains, shades or blinds, which allow some light around the borders, Indow Sleep Panel is edged in silicone compression tubing to create true blackout windows.
LIGHT BLOCKING
Top-Rated Performance
The Attachments Energy Rating Council (AERC) rates window attachment products on energy efficiency by measuring various factors such as Air Leakage (AL) and U-Factor.
Indow scored 2nd out of 33 storm windows tested in Air Leakage and scored a U-Factor (a measure of heat transfer) of 0.3, making our inserts a top performer among all available storm windows.
IN AIR LEAKAGE TESTING
Indow vs Replacement Windows
Adding Indow inserts to an existing window can make your windows perform as well (or better!) than a replacement window, but at a fraction of the cost and without the hassle and disruption of installing new windows.
Energy Efficiency Comparison
AVERAGE COST
- INDOW INSERT: $372
- SINGLE-PANE: $450
- DOUBLE-PANE: $539
- TRIPLE-PANE: $766
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ENERGY SAVINGS
Noise Reduction Comparison
AVERAGE COST
- INDOW INSERT: $372
- SINGLE-PANE: $450
- DOUBLE-PANE: $539
- TRIPLE-PANE: $766
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STC RATING
Improve Resale Value
Indow inserts can also help increase the resale value of your home by improving your energy efficiency in a much more cost-effective way than replacements.
Indow For Your Windows
- 1
Request a Free Estimate. We'll provide you with a preliminary estimate based on your basic window dimensions. It's quick and easy!
- 2
Measure your windows with our easy-to-use laser measurement kit. We'll guide you through the simple process, ensuring a perfect fit.
- 3
Customize your inserts to match your needs and your aesthetic, with tubing colors that seamlessly blend into your space.
- 4
Transform your space with custom-crafted inserts shipped directly to your home, ready to fit perfectly in your windows.
WE SHIP TO YOU!
You're one step closer to creating more comfort & quiet in your home.
To receive a customized estimate for your space or learn more about how Indow inserts can improve the comfort, quiet, & efficiency of your home, fill out the fields below.

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