Aire Serv has announced three appointments at its main office in Waco, TX:

— Milton Dunlop has joined the company as franchise director.

— Sherri Streza has been promoted to marketing coordinator.

— Mary Bowman has joined as executive assistant.

Jim Mollicone, ceo of Western Mechanical, has been appointed chairman of the board of trustees of the Plumbing & Heating Industry of Detroit.

Christopher Doussard has joined Murphy Company Mechanical Contractors and Engineers (St. Louis, MO) as a project manager.