Dean’s Certified Welding specializes in large-diameter pipeline welding services for water, municipal, and industrial infrastructure projects across the United States and Canada. We have successfully welded pipe ranging from 1 inch to 22 feet in diameter, with extensive experience on major water transmission lines, feeders, and force mains.

Our crews perform field welding in open-cut trenches, tunnels, shafts, and confined environments, adapting to site conditions while maintaining strict quality and safety standards. We are highly experienced in SMAW, FCAW, FCAWG, GMAW, and TIG welding, allowing us to match the welding process to the material, diameter, and project specifications.

From long-distance transmission pipelines to complex urban installations, our team delivers precise fit-up, consistent weld quality, and reliable production schedules on some of the most demanding pipeline projects in North America.