Windows Support Systems
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The first and still the finest.

Window Support Systems commitment to the fenestration industry is proven by our engineering achievements, our unsurpassed quality and our ongoing testing for strength and safety. We offer the next generation in bay and bow window support. No other kits have the strength, reliability and safety found in our products. All major components are manufactured right here in the USA. They have been tested, approved and are being used by the leading window companies in the industry. We not only support your windows, we support your customers and installers with high quality detailed instructions.

Superior product engineering is our point of difference. Our cable support systems feature exclusive, patented components that more effectively distribute the window load to the structure of the building, and help level the unit during installation. The result is a breakthrough in window stability, security and safety over the long term. Need proof? Check out the test results comparison, slip comparison charts, and our long term test results with Architectural Testing’s most current measurements.

Windows Support Systems

Windows Support Systems

   More Information:  

>> Who’s using our products?
>> Test results comparison (PDF)
>> Long term test results —
       Straight Line (PDF)

>> Long term test results —
       Lo-Profile (PDF)

>> Slip comparison chart
>> Warranty