Spiral ductwork from Eastern Sheet Metal is now certified by the Air Movement and Control Association, company officials announced.

“Eastern has tested and qualified the industry’s first AMCA-certified ductwork,” said Bill Stout Jr., president of the Ohio-based company. “All of our spiral ducts are certified for air leakage and licensed to bear the AMCA seal.”

Since HVAC systems can account for up to 40 percent of a building’s annual energy bill, reducing duct leakage is critical to saving money, Eastern officials said.

AMCA certification proves that Eastern’s spiral ductwork will perform the same every time, officials added.