Quast Consulting & Testing is a leading brand in the field of window and curtainwall testing. With extensive experience dating back to 1997, they have established themselves as experts in technical matters surrounding window and curtainwall mock-up installation and testing. Led by President Brian M.

Sasman P. E., the team at Quast Consulting & Testing is dedicated to developing facilities and equipment to meet the laboratory testing needs of their clients. Their efforts have resulted in accreditation as a testing laboratory by numerous organizations associated with the fenestration industry.

Brian's professional engineering license in multiple states, including WI, FL, and IL, ensures the highest level of expertise and professionalism. Vice President Matthew W. Wendland brings 12 years of fenestration testing experience to the team.

Under his leadership, the QCT Field Testing Crew ensures smooth day-to-day operations and drives business development. With corporate offices and laboratories in Mosinee, WI, Quast Consulting & Testing serves clients nationwide. They offer a range of services including field testing, mock-up testing, product testing, building enclosure consulting, forensic testing, and thermal testing & simulation.

Choose Quast Consulting & Testing for comprehensive and reliable testing services in the fenestration industry