Agricultural Service & Parts

Grain System Service

Our commitment to customer service and satisfaction has been the cornerstone of RM Johnson Group. In addition to our standard maintenance agreements, we offer 24/7/365 service. Our expertly trained technicians are always on-call to troubleshoot and service any issues that may arise. Service requests can be made by phone by calling 517-539-9244.


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Pre-Season Maintenance

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Before you even begin to plant the season’s crop, the professionals at RM Johnson Group develop an inspection checklist of all the moving parts and pieces of your grain management equipment to ensure it is running smoothly. If any aspects of the equipment are worn out or in need of repair, we can go ahead and complete the necessary repairs to get your equipment back in working order. Parts that can’t be repaired are simply replaced without the hassle of special-order wait-times. For additional questions please email

Post-Season Maintenance

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Once a successful harvest is complete, we inspect your grain systems for any issues or trouble-spots that may have developed over the course of the season. We correct those issues by repairing and/or replacing the necessary parts, usually doing so at a lower cost than if they were to be done during the season.

Millwright Service

In addition to the standard maintenance service for grain systems, we also provide general millwright service. From small farms to large co-op elevators, our millwright service is available to customers of any size and is performed by our highly trained technicians. Some of our millwright services include: building conveyor systems, erecting towers, removal/replacement of floors, fans or heaters, custom fabrication and repairs of existing equipment. Contact us to find out how our millwright service can work for you.


Robert Johnson, Owner

Kimberly Teachout, Office Manager

Jamie Mackinlay, Service Manager

Derek Tracy, Project Manager


2100 Brooklyn Rd.
Jackson, MI 49203

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