Hallmark Certification

• WDMA Evaluates, Sets 2022 Goals for Open Up To Performance

  31 Mar 2022Travis Rains

  Open Up To Performance, the Window & Door Manufacturers Association’s (WDMA) primary website supporting its public relations initiative approved in 2019 continues to gain traction…

• WDMA Extends Term of Hallmark Certification

  17 May 2013Editorial Staff

  The Window and Door Manufacturers Association (WDMA) Hallmark Certification Committee approved procedures for extending the term of Hallmark certification from four years up to a…