Expert Millwright Services for STO Events, MRO Events & New Construction

Whether your rotating equipment is heading into a shutdown, undergoing regular maintenance or being installed, grouted and commissioned on a new build, Cornerstone Mechanical has you covered through it all.

For 30+ years, Cornerstone has provided precision millwright services to keep Texas industrial facilities’ rotating equipment running smoothly from construction through STO events and MRO events.

Don’t take it from us—see what our customers have to say.

“Thank you for the excellent work. This is exactly what we were missing. Cornerstone is always a joy to work with.”

– Engineering Manager

“The Cornerstone team was great to work with and very helpful. They had great input as we navigated a very unconventional installation process.”

– Mechanical Engineer, Semiconductor Facility

“Cornerstone does a great job for us. We need most things in a hurry, and they’re willing and able to help get us back up and running as soon as possible.”

– Control Tech, Manufacturing Industry

“They did what they said they were going to do and even followed up later when they were in the area to see if we needed anything.”

– Technician, Energy Sector

See MRO Services

See New Construction Services

Millwright Services for STO Events

With 24/7/365 availability, a track record of completing outages ahead of schedule and pre-STO assessments to help you create a tighter work plan before your window opens, our team is here to provide OEM-level quality without the OEM-level pricing.

During our pre-STO assessments, we provide:

Vibration analysis and condition monitoring to flag issues before your window opens
Scope planning support to help prioritize what needs attention and in what order
Both standalone services or the first step in an ongoing STO partnership

Millwright Services for MRO Events

We’re ISNetworld and Avetta-compliant, with a team experienced in confined space entry, hot work permits, LOTO and PSM requirements across industrial environments. Whether you need a scheduled maintenance program or an emergency repair, our team is here to get you back up and running as quickly as possible through:

Preventive and corrective maintenance scheduled around your production calendar
Dynamic balancing and precision laser alignment to catch wear before it becomes downtime
24/7 emergency repair support when something breaks unexpectedly

Millwright Services for New Construction

For 30+ years, our team has partnered with contractors and owners to install, commission and maintain rotating equipment for facilities across North Texas, East Texas and beyond.

When helping build your critical infrastructure, our team:

Acts as an OEM equivalent and provides test reports for commissioning
Always aims to minimize rework and change orders for our scope
Follows internal procedures to ensure high-quality installation work on your project

Let Us Know What You Need

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About Cornerstone Mechanical

Cornerstone Mechanical Services, LLC, is a Christian-owned company that strives to embody the principles of Proverbs 22:1, emphasizing the value of a good reputation over material wealth. For more than 30 years, Cornerstone Mechanical has earned its reputation as a highly respected provider of precision millwright services for critical rotating equipment. Our team takes great pride in partnering with general contractors, mechanical contractors and owners to install, commission and maintain equipment with quality, precision and reliability at the forefront.

Talk to Our Team