SLIPs are designed to update single-pane wood windows to modern standards of efficiency and operation. We have made it possible to add an additional TEMPERED pane directly to each sash overlaying your current glass setup. The frame of the SLIP is an attractive ALUMINUM extrusion. This simple solution can rejuvenate Single hung, double hung, casements, picture windows and more. When SLIPs are added to operating windows, the sash are kerfed and weatherstripped. The weatherstripping helps eliminate drafty windows and also tightens up loose sash in the opening. When we add all these collective updates We call it, the SLIP™ System.  This modernization is a long term solution that does not seasonally need to be reinstalled.

A SLIP™ will dramatically boost insulation power in your windows and will bring great savings to your month to month energy bills.  In terms of insulation power, SLIPs have been tested and are comparable with insulated glass conversions. However, unlike glass conversions, SLIPs will not succumb to seal failure and require periodic glass replacement, meaning lower future maintenance costs.

SLIPs are highly effective, well designed and well-priced, giving you superior value when compared to alternatives. 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, or remove any components as you sometimes get with storm windows or inserts.

The SLIP™ is a tested and proven product that yields great results for the performance of your windows! Click to see the energy results and product studies