WeatherLok Energy Efficient Windows

WeatherLok offers you a high performance, energy efficient
window, that is maintenance free, durable, and easy to clean.

3201 bisected window 134x300While Titan Siding and Windows offers a diverse line of windows to match your home, the WeatherLok window and door line is a reliable and economical window line.  The WeatherLok line is made by Atrium.  It was designed to be a very solid and energy efficient vinyl “replacement” window used exclusively by large window replacement contractors.  WeatherLok is a proprietary vinyl window line that can only be purchased in this area through Titan, Siding, Windows and Exteriors.  This window line features several different windows with varied options and styling including the 3100, 3201, 3500 and the 3900 series.  The 3100 series is a single-hung window designed for new construction applications.

Quality in the build. WeatherLok Bisected WindowThe 3201 series is our crown jewel.  It is a double-hung , cost effective window which comes standard with a 7/8” insulated glass unit for superior energy efficiency when compared to others windows in this price range.    The 3201 has two night latches so you can sleep with your windows slightly opened and it also features a warm edge window spacer designed to keep the heat and cold out.  While the WeatherLok 3201 is easily our most efficient vinyl window in its price range, the looks and style are what our clients really love.

The WeatherLok 3500 series features a beveled frame and handsome brick mold appearance while the 3900 series gives you eight optional exterior colors and three wood grain interior finish options.

The entire Weatherlok Line features a limited lifetime warranty on all the hardware, the insulated glass units and the vinyl as well as a lifetime of accidental glass breakage.  Weatherlok’s exceptional warranty is back by Titan’s lifetime installation warranty.

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Click here to look at the specifications of the WeatherLok line of windows.


Titan Siding, Windows & Exteriors employs only the most qualified, factory trained crews to install your windows. Replacing your windows is a large investment and should only be done once. For this reason, we only install award winning windows made by manufacturers such as Simonton and Andersen. Along with great window warrantees, Titan provides its clients with the added benefit of our lifetime installation warranty.

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