Wood Window Insulation Panes & Panels.
Window SLIP is a best-in-class sustainability solution for offices, schools, historic homes, and retail spaces.
The Beauty,
Enhance
The
Function
Our Clients
Single-Pane Windows Reduce Energy Efficiency and Max Out Bills
If your school, office, or retail space is in an older building, you’re likely no stranger to heat loss through your single-pane windows. This lack of thermal insulation can result in high heating costs during the cold weather months and uncomfortable temperatures in the hot months as well. Temporary fixes like window film, foil, or seasonal storm panels offer marginal performance and require recurring labor or replacement. SLIP provides a permanent, building-scale upgrade — custom-built for each sash and tested to reduce window energy loss by over 70%.
For Older, Historic Buildings, Replacement Windows Are Out of Budget or Impossible to Recreate
- Beautiful, detailed hardwood windows are extremely costly to replace, if not impossible to reproduce.
- High energy costs keep your company from focusing funds where they’d grow your business.
- You want to meet higher sustainability standards, but your windows are holding you back, and replacements aren’t in the budget.
Window SLIPs are a Trusted Solution for Schools, Offices, and Retail Spaces
Window SLIPs are a graceful solution to a decades-old problem.
- Preserve the charm of your historic windows by letting their beauty shine. Our window insulation panes allow your original windows to show right through as if nothing has changed.
- Reduce your energy bill by up to 72% with Window SLIP installation.
- With U-Factor ratings on par with EnergyStar, you’ll gain points toward your energy goals and certifications.
Ready to Get Started
Our team is ready to provide you with a customized quote for your school, business, or retail space. Say goodbye to condensation, stuffy summers, and DIY films when you have Window SLIPs installed.
Because each of our window insulation panels is custom-made, we need measurements for every window to provide a custom quote. Providing the width and height of each panel makes it possible for us to accurately calculate the size of your project. It’s important to be accurate within fractions of inches here so we can make a perfect fit. Learn more about how to measure your windows for SLIPs.
How Do Our Window SLIPs Work?
Window SLIPs are custom-made to fit the exact specifications of your residence or business. They are installed by contractors, architects, or licensed professionals. Because of their slim lines and clear glass– they’re nearly invisible once put on your window.
Custom Fabrication
Each SLIP is custom-fabricated to match the daylight opening of the sash and mounts securely to the interior or exterior face of the sash, depending on configuration. The system includes a slim-profile aluminum frame and high-performance glass, installed by trained contractors or preservation professionals. The low-profile frame can be painted to match your window and disappear. This allows your original window to show through as if no alterations were made.
Professional Installation
Windows remain fully operable, and in some cases, painted-over or damaged windows can be fixed utilizing Window SLIPs. Our systems come with all installation hardware included. In your package you’ll find hanging balances, weatherstripping, screws, and tabs.
Questions about Installation? Check out our Frequently Asked Questions page or this how-to video.
Energy Saving Benefits
The homeowners experience all the benefits of double-pane windows, without the price tag of full replacement. Our customers report cost savings of over 72% on their energy bills. They also notice reduced noise and no more moisture.
What Types of Windows Can We Create SLIPs For?
Single Pane Windows
Window SLIPs add a second layer to single-pane windows, creating insulation similar to double-pane quality.
Single-Hung Windows
Double-Hung Windows
Casement Windows
Leaded Windows
Stained Glass Windows
Arched Windows
Meet Your Sustainability Goals With Wood Window Insulation Panels
If your building is working towards a green-energy certification like LEEDs, EnergyStar, WELL Building Standard, or BREAM— our Window SLIPs can help you get across the finish line.
We’ve Got the U-Factor
Most energy-efficiency certifications, including LEEDS, test the U-Factor of your windows as a measure of heat loss. Our SLIPs have been tested against EnergyStar-certified products and are on par with industry standards for energy efficiency. With customizations like Low-E glass, we can get you even closer to your perfect score.
Well Regarded Across Many Industries
We’ve helped a wide range of buildings adapt for a greener, more sustainable future. From schools to office spaces to retail stores and historic libraries– there’s no challenge we won’t accept when it comes to preserving historic windows and helping you become more energy-efficient.
Frequently Asked Questions
Is Restoration More Cost-Effective Than Replacement?
Yes, new windows, especially those custom fabricated for historic windows, can cost thousands of dollars per window. Our Window SLIP Solution is a more affordable solution for difficult-to-replace vintage windows. Plus, it’s hard to recreate the hardwoods, details, and craftsmanship that went into beautiful historic windows, and installing Window SLIPs means we get to enjoy them for many more years to come.
How Much Can Window SLIP Save My Company on Utilities?
Our customers see up to a 72% reduction in their energy bill after installing SLIPs. That’s far improved from the results of foam weather strips, window film, or insulation foam, and looks great as well! Plus, you won’t incur annual replacement costs for interim methods. With proper maintenance, Window SLIPs are durable and can last for decades.
Do You Offer Custom Sizing for Rounded and Odd-Shaped Windows?
Can Window Inserts Contribute Points to Our LEED Certification?
Can Window Inserts Meet EnergyStar Standards?
Yes, our Window SLIPs have been tested and have a U-Factor in the same range as highly rated EnergyStar windows. Store-bought window insulation kits, however, don’t get you close to the same improvement.
Can I DIY a Solution Instead?
Can you? Absolutely. Should you? That’s a whole different matter. We know it’s tempting to pull out a hair dryer and scissors and get to work with window kit tape, but it won’t provide what you need in the long run. Amazon sold solutions like RV thermal insulation foam and packing tape don’t come close to the same U-Factor improvements as Window SLIPs. Our inserts bring your windows up to the level of double pane insulation, something none of the store-bought competitors can match.
Backed by a Ten Year Warranty
Our SLIPs are guaranteed to withstand regular wear and tear for a decade. We require professionals who install our products to provide a 1-year warranty on installation as well. With proper maintenance, our SLIPs can easily last for the life of your windows.
Contact Us Today to Get Started
If you’re ready to dodge the drafts for good– Window SLIP is the most cost-effective and energy-efficient solution for your organization. Feel great about meeting your sustainability goals while maintaining the historic look and feel of your business.