Build. Repair.
Protect. Comply.
Mehall Contracting is a specialized industrial contractor for wastewater systems and everything around them.
One crew. One story.
Every facility has a story.
We run every chapter of it.
We build it.
Wastewater systems from dirt to discharge. Excavation to startup, all on one contract.
See BuildWe fix it.
Specialized technicians for facility services. On call 24/7, on site fast, anywhere in the Valley.
See RepairWe protect it.
Asset protection on a rhythm: cleaned, calibrated, inspected, and logged, with failure caught before it happens.
See ProtectWe keep it compliant.
PermitLock runs industrial pre-treatment permits end to end. You sign your reports with peace of mind.
See Compliance
One crew. The whole story.
Click any chapter to learn more.
The numbers behind it.
facilities across the Southwest trust our services
average response time, Valley wide
sampling events a year
flow studies completed
Underground is our comfort zone.
Thousands of confined space entries across Phoenix.
The setup nobody else runs
Most crews enter on generator fed air pumps that are prone to failure. We took our supplied air SCBA rig, with two line communication, to OSHA and earned a formal deviation approving that exact setup. Safety a tier above the industry.
Tell us what you need.
Installation, a repair, or a recurring service agreement. Same number either way.