Partners and Certifications
How You Know Our Siding Will Keep Its Promises
Alside partners with objective, third-party organizations that continuously test our products and verify that we meet the highest standards of performance and quality. They include:
The Vinyl Siding Institute (VSI) sponsors independent, unbiased testing, inspection and certification of vinyl siding performance. Alside siding has been certified under VSI programs to meet or exceed the rigorous battery of tests for vinyl siding quality.
Thanks to this certification program, you can rest assured that, when installed according to our instructions, Alside siding will meet or exceed industry standards for quality and performance. You can also be confident that your siding will maintain a uniform color over time, lie straight on a flat wall and withstand the effects of normal seasonal temperature fluctuations.