Countywide Mechanical Systems announced that Paul Duke has joined the company as president. In his new role, Duke is responsible for the entire operations of Countywide Mechanical Systems, located in Santee, Calif.

Philadelphia-area mechanical contracting firm Burns Mechanical has announced the launch of its new website at www.burnsmechanical.com.

Tim Wentz, educator and recipient of the Mechanical Contractors Association of America’s (MCAA’s) Distinguished Service Award, was elected ASHRAE’s treasurer for 2014-2015 during the ASHRAE 2014 Winter Conference.

Scheck Industries, a national mechanical construction contractor, announced that Karen Layng has been appointed general counsel and vice president corporate development of the Scheck companies and will remain an advisor to the board.

Armistead Mechanical, a provider of mechanical construction, engineering, and contracting services throughout the New Jersey/New York area, announced that Joseph Jerkowski, P.E., vice president of operations, has been named to the board of directors of the Construction Contractors Association of New York’s Hudson Valley.