Mechanical contracting from custom fabrication to efficient repair.

We’re proud of a comprehensive, multi-disciplinary service offering that’s backed by more than sixty years of expertise. A range of contractors, companies and institutions turn to us for mechanical contracting services from complex piping system design to installation of massive silos and vessels. No matter the size or scope, we believe in offering customers a competitive price and the confidence that comes with delivering a safe project on time and on budget.

Our welders, fitters, ironworkers, millwrights and riggers are part of a safety minded team of more than 350 Gregory employees. We’re proud to maintain an annual EMR safety rating of 0.94 that we work hard to maintain on every project and jobsite, including our own 10,000 square foot fabrication shop.

As infrastructure strategists, we promise the planning, expertise and agility that maintain productivity and limit downtime due to installation or repair. How can we help you?


Pipe Fabrication and Installation
Structural Fabrication and Installation (columns, platforms, handrails/stairs)
Duct Fabrication, Installation, and Repair
Hoppers and Silos Installation and Repair
ASME/AWS Welding Services
Equipment Installation and Relocation
Conveyor Installation and Repair
Tanks and Vessel Installation
Rigging Services
Maintenance Services
Emergency Repair Services