What we do
Testing capabilities across the building envelope.
Field Testing
We bring the lab to the jobsite — quantifying air infiltration and diagnosing water penetration on installed windows, doors, and curtain walls, to the exact standard your project requires.
Explore Field Testing →Laboratory Services
Our ISO 17025 laboratory qualifies fenestration products against the full range of performance standards — including a computer-controlled missile-impact cannon for impact and cyclic testing. We also test to ASTM E1186 and ASTM E1996.
Explore Laboratory Services →Forensics & Litigation
When a building leaks, we find out why. FTL provides independent third-party water-intrusion investigation and investigative leak detection for rain-related intrusion — and expert analysis for construction-defect claims.
Explore Forensics & Litigation →Test Equipment & Calibration
Here at FTL we manufacture, calibrate, and repair the ASTM E1105 spray-rack systems used to test windows, doors, and wall assemblies for water-penetration resistance — meeting the "field spray apparatus" requirements of the governing standards, with traceable calibration reports.
Explore Test Equipment & Calibration →Construction Defects
The construction industry will invariably see defect claims brought to insurance carriers — and we're here to help you navigate that complex process. Since 1988 our fully accredited laboratory has tested, inspected, and investigated windows, doors, and walls throughout the country.
Explore Construction Defects →Other Services
Beyond windows and doors, FTL performs a range of additional ASTM test methods for sealants, coatings, and masonry assemblies.
Explore Other Services →Request a quote
Tell us about
your project.
Send the standard, building type, location, and timeline — we'll come back with scope and scheduling. Prefer to talk?
- Call 909-477-4343
- Email Admin@FTLtesting.com
- Lab 10235 8th Street, Rancho Cucamonga, CA 91730