Local Hospitality, Nationwide Scale


New Locations, New Name

Springfield Mechanical Services, Inc. is now SMSI Group, to reflect our growing list of branch locations, service areas covered, and states where we are available to work. Rest assured, the same quality, service, and innovation will be available wherever you call home.

The highest quality turn-key facility solutions. Performed in an honest, dependable, and efficient manner

Beginning with Bob Fisher and a pre-owned delivery van in 1989, to becoming one of the largest mechanical contractors in Southwest Missouri, SMSI has always set its sights on giving world class service to every customer.

Our comprehensive offerings give us the unique ability to repair every mechanical aspect of your facility, regardless of purpose. From commercial offices to industrial warehouses, conveniences stores to manufacturing plants, we ensure your building is running as intended so you can focus on the things that matter to your business.

Using completely digital platforms from quotes to invoices, timesheets to GPS tracking, we make it easier to accurately process your services with entirely transparent methods. No over-billing, no fuzzy details, simple payments and financing. Our customers rely on our precision to guarantee reliable and efficient service.


When Bob Fisher started SMSI, he understood that communication with the customer is key to a reliable partnership. Based on that principle, we have continued to focus on serving our customers with honest, dependable expertise. By precisely performing our services, according to detailed specifications, the quality reflects in our customers’ operations.

Join Our Team


Since 1989, SMSI has strived to become a single destination for commercial and industrial facilities for design, repair, and mechanical services. Over the years, we have meticulously integrated new departments and services to fit our vision of offering turnkey solutions for any building and any scenario. Covering a broad array of services, SMSI can offer your facility not only the most efficient solution to your problems, but an innovative analysis of how you can improve your operations by utilizing our extensive expertise on all aspects of building management. We produce effective ROI on all projects, and prove utility savings with all services.


When visiting our headquarters in Springfield, MO, please make sure to check in with our Chief Morale Officers, Banyan and Brody. They will be more than happy to assist with alleviating all your concerns.

Our Associations

“I have worked with SMSI for years, one of the most honest companies to work with. Very GMP (Good Manufacturing Practice) minded and look forward to working with them more years to come.”
Chris Marr
“SMSI Group has been a great partner for our refrigeration systems. The work ranges from piping and vessel replacements, component installs, and repairs. Their team is very responsive to all company standards of construction and plant specific safety requirements. The consistency and quality makes it easy to make them the first call when something is needed.”
Alex Ruwe
“The team did a phenomenal job leading and coordinating the tasks at hand, on the repair to the retorts and copper pipe replacement. Very solid team that didn’t mess around, and got the job completed. Thank you for the support very much appreciated.”
Steven Owens

Have a project in mind? Consult our experts. Let's Talk