It’s S4’s mission to support and grow the business of the customers we serve.  We do that by striving to provide our customers with the most durable, easy-to-use, innovative and cost-effective products supported by the best customer service possible. Our continued investment in Human Resources, Warehousing Operations, Overseas Operations, and Product Development are testaments to our commitment to improve our products & services, adding  value for our customers every day.


S4’s in-house design team heightens the customer experience and increases efficiency with electrical, structural, and visual innovations.

Quality Construction

We only make commercial grade products.  Our team based in China develops quality components with rigorous QC standards for all S4 products. 

Installation Ease

Performance and beauty are not our only goals. Time is money and S4 understands the value of thoughtfully designed systems that install with minimal effort.

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Learn more about our patented product innovations.

Terms of sale

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Click below for definitions for common industry terms.

Warranty Information

Check your product warranty information by clicking to the right.