Securing certification for Andersen windows and doors is an important way to show our commitment to sustainability. Third-party certification programs from a neutral, objective source helps consumers easily identify products that have been manufactured in an environmentally responsible way. That’s why Andersen has produced Hallmark-certified products since the 1970s.
The Hallmark Certification Program began in the 1940s and was developed by the Window and Door Manufacturers Association (WDMA). It is considered a mark of excellence among architects, contractors and manufacturers in the industry. To become certified, manufacturers must pass in-plant inspections, which include audits of quality control procedures. Manufacturers also undergo periodic inspections after the initial certification to ensure that the production process continues to comply with Hallmark standards.
