API 1104 certified welding

Certified welding isn’t just for long-haul pipelines—it’s essential across piping systems in gas infrastructure, terminal upgrades, mechanical builds, and utility installations throughout Arizona. At Earthquake Welding, we provide API 1104-certified welds for projects where pressure, safety, and compliance are critical.

From steel fuel lines and regulator assemblies to mechanical room piping and utility service tie-ins, our welds are held to the highest standard. Every joint is documented, traceable, and built to pass inspection—whether it’s part of a new system, a retrofit, or a live tie-in.

API 1104 is the benchmark for quality in the petroleum and gas piping world—and we’re built to meet it across all types of pressure-rated piping systems.