Live gas line welding

When it comes to live gas lines, there’s no room for error—whether it’s steel or poly, every connection has to be made safely, certified, and without shutting the system down. Earthquake Welding is equipped to provide live gas line welding and fusion services across Phoenix, Tucson, and all of Arizona.

We handle high-pressure steel welding for transmission and distribution mains, as well as poly fusion for HDPE gas lines on active utility systems. Our crews follow strict hot work procedures, gas company protocols, and weld to API 1104, ASME B31.8, or utility-specific standards.

Whether it’s a valve tie-in on steel pipe in Gila Bend or a live poly fusion on a service line in Mesa, we come prepared to work the system live—welding or fusing the connection without taking the line out of service.