As the preminent stainless steel contractor for a range of industries...


with the man power to handle the job...




Miller Mechanical Services, Inc. (MMSI) is a North American company specializing in metal fabrication and installation as well as the general maintenance of the pulp & paper industry.

We provide engineering solutions to a wide range of industries through metal work technology, fabrication and construction. We maintain “R” and “U” stamps that allow for fabrication, alteration and repair of ASME code vessels in the shop as well as the field.

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Sample Products & Services


ASME Pressure VesselsASME Pressure Vessels

API Storage VesselsAPI Storage Vessels

Curved Slot Screen DesignCurved Slot Screen Design



Heat ExchangersHeat Exchangers


Learn about our FLOW Mach 4 Waterjet with Dynamic XD technology! Faster, more accurate bevel and 3D cutting.

Latest News


Rush Job from a Pulp and Paper Facility in Iowa

The welders and fabricators at Miller were pulled into work over time this week due to a rush job from a pulp and paper facility in Iowa. Miller straightened the flights … Read more...

Our First Candidate Visit of the Year

The following link is from the Post Star regarding our first candidate visit of the year. Elise Stefanik, who is the Republican Congressional Candidate, came to tour Miller Mechanical yesterday and share … Read more...

Granite Trim Cut With Accuracy

A regional contractor was put to task on a historic building in New Hampshire.  Part of the restoration effort was to restore sets of massive granite columns that had water … Read more...