EXPERTS

About Us

Fenestration Testing Laboratory, Inc. (FTL) was established in 1988 and is an ISO 17025 accredited test facility that offers both field and lab testing services, forensic water leak investigations and consulting services for fenestration products & the surrounding components that make up a building's envelope. Our clients include manufacturers, architects, waterproofing consultants, general contractors, installers, and building owners.

FTL maintains test lab accreditations from the Fenestration and Glazing Industry Alliance (FGIA is formerly AAMA), the International Accreditation Service (IAS), and the Window and Door Manufacturers Association (WDMA). 

Over the course of the years we have built our reputation on hard work, expertise within our industrial segment and quality service.  We sincerely thank you for visiting our site and we look forward to assisting you with your needs.

Accreditations & Certifications

Fenestration Testing Laboratory is an ISO 17025 accredited testing facility that is committed to providing our clients with excellent service. In order to guarantee that statement we also maintain industry recognized test lab accreditations from the following governing bodies:

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Mailing Address + Laboratory

10235 8th Street
Rancho Cucamonga, CA 91730