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NCTL - North
Corporate Office and Laboratory
5 Leigh Drive
York, Pennsylvania 17402
Ph: 717-846-1200
Fax: 717-767-4100		 NCTL - South
8350 Parkline Boulevard
Suite 320
Orlando, Florida 32809
Ph: 407-240-1356
Fax: 407-240-8882		 NCTL - Mid-Atlantic Region
Field Evaluations Office
Staten Island, New York
Ph: 1-888-522-2902
Fax: 717-767-4100

NCTL - Great Lakes
Field Evaluations Office
Detroit, Michigan
Ph: 1-888-522-2902
Fax: 717-767-4100
- Four Locations to Serve You -

National Certified Testing Laboratories is an accredited full service independent testing laboratory serving the architectural and building product industries since 1977. Laboratories located in York, Pennsylvania, and Orlando, Florida provide the Fenestration Industry the highest level of performance evaluations with state of the art equipment, teams of qualified technicians and an engineering staff including an on-site Professional Engineer.

To contact us please select a department listed below:


To review a testing service we offer, please select a testing icon below:
Structural and thermal testing of your window Cycling and structural testing of your door Calculate the thermal conductance of your product Field Testing on your installed product Weathering testing of your SIG Furniture Testing
Window Testing Door Testing Thermal Testing Field Testing Insulated Glass Furniture Testing

 

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