A Reputation
for Performance

What started as a small crew of welders and pipefitters has grown into a full-service piping and mechanical contractor with a reputation built the hard way — one quality weld, one safe shift, and one satisfied client at a time. Today, ATS is trusted by refineries, petrochemical facilities, and industrial plants for work that has to be right the first time.

ATS operates from three core locations spanning two states — Port Allen, Louisiana, Houma, Louisiana, and Tulsa, Oklahoma. Each is a fully staffed hub with its own certified welders, pipefitters, and NDE technicians, giving clients direct, local access to our crews throughout the Gulf Coast and Mid-Continent regions.

Our capabilities cover the full scope of piping and mechanical work — welding, pipe fitting, non-destructive examination, mechanical installation and maintenance, field inspection, and QA/QC documentation. Every job is executed to code and backed by traceable records that stand up to owner and third-party review. That combination of skilled hands, disciplined process, and a safety culture that never takes a shortcut is what has kept ATS in business for a quarter century — and what will keep us here for the next one.