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


A Combined Effort for a Repair with A Quick Turnaround

The top separator head from a pulp and paper mill in Maine arrived late one evening mid week. The fabricators began working on it right away.   Then the more difficult work … Read more...

Miller’s Waterjet Saves Time and Money

Our Miller Waterjet Manager makes the most of your design and materials.  Some industrial products can be designed using the same thickness plate as seen photo below. All parts cut … Read more...

Today is Manufacturing Day

On this day The Miller/Doty family of manufacturers would like to come together to show the public what manufacturing in the United States really looks like and to inspire a new generation of … Read more...