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Single Pane Window Energy Solution!

Introducing, Slim Line Insulating Panes or SLIP

The SLIP (Slim Line Insulating Pane) is designed to update single-pane wood windows to modern standards of efficiency and operability. This simple solution will help out Single hung, double hung, casements, picture windows and more.

A SLIP will dramatically boost insulation power in your windows, which will bring great savings in your month to month energy bills.  In terms of insulation power they compare to insulated glass.

SLIPs are highly effective, well designed and well-priced, giving you superior value when compared to alternatives. Conventional storm windows can be big, bulky, a hassle, and parts being hard to find. SLIPs have a sleek look and feel with a low profile that blend into the sash; you’ll hardly know they are there. Another key aspect is that SLIPs will ensure your window sash remains fully operable, without the need to open two sets of windows as you get with storm windows or window inserts.


  • Increased energy efficiency
  • Sound reduction
  • Less expensive than window/glass replacement
  • Maintains original beauty and charm of existing windows
  • Windows can stay historically accurate and functional
  • Solid, well-designed construction and material
  • Retain the original glass

Residential Homes

Over 20 years of working with vintage windows has made this product a reality. We have listened to homeowners problems and concerns with their windows and we took action. Our mission was to create a quality product that would resolve issues such as insulation, noise, functionality and protection all while being aesthetically pleasing and at a reasonable price.

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Historical Preservation

Wood windows and their functional and decorative features are of utmost importance in defining a buildings overall historic character. Our products mission is to never jeopardize that, but to improve upon it. Old wood windows are the most valued in the market today and easily outlast modern manufactured wood windows. Vintage windows can have problems such as drafts, low insulation power, and little protection from outside elements our SLIP product can take care of these issues, all while still having your windows remain historically accurate.

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Commercial Buildings

Slips have been successfully put to use in many commercial buildings and results have been outstanding. Building occupants noticed how much warmer the building is and how much smoother windows operate when letting fresh air in. Building owners will definitely notice the month to month savings in energy bills.

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