Welcome to Local 520 Plumbers, Pipefitters, and HVACR Service Technicians web site. We have been in business for over 100 years serving the 23 Central Pennsylvania counties. This site will provide insight to who we are and how we may help you understand more about the role of organized labor in the 21st century. Education, benevolence, fidelity and protection are the fundamental values of the free trade union movement. The Plumbers, Pipefitters and HVACR Technicians Local Union 520 has been serving Central Pennsylvania for nearly a century.
