The International Brotherhood of Boilermakers represents over 100,000 proud UNION members in both the U.S. and Canada

Union Boilermakers are highly skilled craft professionals who work in the backbone industries that power and support modern society. Our members perform critical work in power plants, oil refineries, chemical facilities, mills, shipyards, and heavy industrial sites across the country.

We specialize in the construction, maintenance, repair, and modernization of boilers, pressure vessels, tanks, furnaces, and large-scale industrial equipment. Our work includes precision welding, rigging, steel erection, fabrication, and code-quality repairs on systems that operate under extreme pressure, temperature, and safety requirements.

Boilermakers are essential during plant outages, shutdowns, and turnarounds, where complex work must be completed safely and efficiently under tight schedules. Our members routinely work at heights, in confined spaces, and in demanding environments, following strict safety standards and industry codes.

From energy production and manufacturing to environmental and infrastructure projects, Union Boilermakers deliver skilled labor, craftsmanship, and reliability that keep critical facilities running safely and efficiently.

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