Shipping containers are built out of specialized Corten steel to withstand extreme marine environments. Modifying or repairing them requires more than a standard weld—it demands precise thermal control and structural integrity to prevent warping and ensure the enclosure remains completely weatherproof.

Whether you are a logistics manager with a fleet of damaged sea cans or a contractor launching a custom container modification project, No. Twelve Welding Company acts as a turnkey logistical asset. Our fully autonomous mobile welding rigs arrive site-ready with onboard power, capable of cutting, framing, and reinforcing your containers anywhere they sit—requiring zero infrastructure support from you.