Plant Services, Inc

Plant Services, Inc



Metal Works, Inc and Plant Services, Inc have completed something unprecedented in the on-stream leak sealing community. We’ve put together the first independent on-stream repairs training facility,
built to service contractors within the leak sealing industry.
Combining decades of experience and knowledge in the specialty contracting field, our extremely  experienced experts have formed the SRTS Group. SRTS stands for Specialty Repair Technical Support. A full-functioning technical support department and training facility, designed to support you, the small businesses out there working hard to keep our petrochemical and industrial customers on-line

Trainig Center


Our Training department offers complete comprehensive training for your technicians, from basic nomenclature knowledge to advanced training with more technical procedures such as valve kills, line crimps and jobs involving critical chemicals.

Students that attend our training, will receive training customized to your company’s needs.  Instruction includes classroom and hands-on training where the student will perform actual procedures under the watchful eye of our Certified instructors.  Technical testing is also administered at the conclusion of the training. Passing students will receive a diploma and your company will receive a letter of completion for backup, should a client want verification of independent training. 

SRT Office


Take advantage of our extensive leak sealing knowledge by hiring our technical support department to provide “chem checks”, provide technical support for field personnel, and even log your critical job data for easy reference later.  

When hired, consider our SRTS department to be your technical support department.  We’ll be there to support you for everything from chem checks, to clamp calculation review, to phone calls with clients all the way up to on-site visits for consultation or incident follow-up.

Tom Thayer Picture

Tom Thayer


Thank you for coming to our website. It is my hope that when you put your mouse down and decide to take action for your facility needs, that we’ve given you enough information for you to make PSI your first call for your specialty contracting needs.

I formed PSI to provide a better, more polished product for our customers in the power and petrochemical industries. To provide “old school” service that was based upon a handshake, and where a service company does just that, provide service. Not only provide service, but provide only the best service, with spot-on pricing, punctuality, professionalism and utilizes a “service with a smile” approach. The company, much like myself has modest roots, remains humble in its demeanor and yet is very driven to succeed and be the very best at what we do.

Mike Bosse

Mike Bosse

Lead Technician

Mike has been with PSI since Late 2014, when he moved over to Billings, MT from Chicago to join our work family.

Mike has been working in the petrochemical industry since he was 19 and has developed quite a few specialty skills over the years. Mike’s certified in multiple PSI service lines such as Isolation/Hydros and torqueing and on-stream leak sealing.

“Bosse” as we refer to him, is another part of our very talented and exciting MT crews. Committed, caring and very personable, Mike is a favorite of our customers and is usually asked for by name when they call in for service work. We enjoy seeing Mike’s bright, smiling face every day around here. He just brings joy to everything he does and is a superb member of our Plant Services, Inc. family.

Sean Carney

Sean Carney

National Technical Operations Manager

Sean has over 13 years of specialty contracting experience and has been with PSI for over 10+ years. Sean started in this industry at a very young age, so despite barely being in his 30’s, Sean has collected decades of experience and has earned his right to manage all of PSI’s territory offices. Sean is a life-long Montana native and grew up in the farm fields just outside of Billings right near the PSI corporate office.

Sean has obtained training and certification in just about every service line PSI has to offer. From Leak Sealing to Hot Taps and Line Stops, Sean’s mastery of these services lines is the baseline that provides him the knowledge to lead our offices to provide only the pinnacle of services to our valued customers.

Sean has the unique background in that he apprenticed at PSI while he was in high school. Seeing things literally from the ground up, as well as working his way up with hard work, dedication and a zest for specialty contracting, Sean’s vision for the future of PSI sets us all up for success. Customer service is core to Sean’s beliefs, and he is our cheerleader to our troops that quality customer service is not easy but is worth it every time and is the only service acceptable here at PSI. Give Sean a call and see what he can do for your specialty needs.