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M.J. Nester’s mechanical services are ever-evolving. Our growth has enabled our team’s expertise to encompass a multitude of projects, each unique in it’s own scope, from Allentown to Philadelphia. Your next project will benefit from utilizing the entire M.J. Nester team’s extensive knowledge.

Mechanical Services Include:

  • Bearings, Seals, Shafts & Couplings
  • Conveyors & Conveyor Belts
  • Diagnostic Services
  • Gearbox and Drives
  • Maintenance, Routine or Preventative
  • Staff Support
  • Pumps
  • Equipment Modifications & Rebuilding
  • Sheaves & Pulleys


M.J. Nester Specialty Contractors are ever-evolving. Our growth has enabled our team’s expertise to encompass a multitude of projects, each unique in it’s own scope. Your next project will benefit from utilizing the entire M.J. Nester team’s extensive knowledge.

Here is just a few services we provide:

  • Silos, Bins & Hoppers
  • Baghouse & Dust Collector Repairs
  • Gearbox and Drives
  • Equipment Modifications & Rebuilding
  • Equipment Guarding
  • Liner Replacement
  • Fabricate & Install Chutes & Conveying Equipment
  • Auger Repair, Retro-Fitting & Installation
  • Material Piping
  • Catwalks, Stairs, Handrails & Mezzanines
  • Diagnostic Services
  • Bearings, Seals, Shafts & Couplings
  • Maintenance, Routine or Preventative
  • Staff Support
  • Pumps
  • Conveyors & Conveyor Belts
  • Sheaves & Pulleys


M.J. Nester Specialty Contractors provides seasoned veteran welders for all your needs. We are professional welders who are willing and able to tackle any job, and we guarantee the best, and will stand behind our work.

We utilize many different methods of welding:

  • (SMAW) Shielded Metal Arc Welding
  • (GMAW) Gas Metal Arc Welding
  • (FCAW) Flux Cored Arc Welding
  • (GTAW) Gas Tungsten Arc Welding
  • Metal Fabrication
  • Under Accordance of the Specifications of:
  • The (ASTM) The American Society of Testing and Materials
  • (API) The American Petroleum Institute
  • (ASME) The American Society of Mechanical Engineers
  • (SAE) The Society of Automotive Engineers
  • (AISI) The American Iron and Steel Institute.

M.J. Nester is a complete fabrication shop with major fabrication equipment. Stocking a full line of aluminum, stainless steel and mild steel sheet metal: pipe, angle, channel, box tube, ASME certified metals, catwalk, and diamond plate. Our capabilities will meet the range of your production needs. From prototype modeling, to low and mid-volume production, to high volume runs. Our new 10,500 sq. ft., complete, fabrication shop also holds an ASME-Accredited “U” Stamp and a NBIC-Accredited “R” stamp to do pressure vessel rated work. We are also a full-service liquid and dry bulk tanker repair facility for both local in Allentown, Philadelphia, and Pottstown as well as across several states.

Areas Of Concentration Are:

  • Stainless and Carbon Steel
  • Aluminum & Alloys
  • General Fabrication
  • Guards, Guard Rails, Stairs, Ramps & Handrails
  • Machine Building
  • Platforms, Mezzanines, Catwalks, Ladders
  • Racking, Monorails & Conveyors
  • Structural Steel

Here is a list of a few tools of the trade we take pride in:

  • CNC Plasma Cutter (up to 1/2’’)
  • Press brake (bends up to 3/8’’ mild steel)
  • Bend and shear capabilities (up to 3/8’’ mild steel)
  • Plate Shears (1/4’’ to 10’)
  • Roundo Plate Bending (up to 1/4’’)
  • Standard Rolling & Buffalo Roll Capabilities
  • Punching
  • CAD/CAM Capabilities


M. J. Nester is a full-service rigging and millwright company providing quality service to clients across the United States. We specialize in millwright, machinery moving and plant relocation’s.

We provide:

  • Millwright
  • Rigging
  • Total Plant Relocation
  • Machinery Moving
  • Fabrications
  • Prepare Machinery for Overseas Shipping
  • Heavy Hauling
  • Equipment Modifications & Rebuilding
  • Staff Support


M. J. Nester provides all stages of process piping development, from planning and fabrication, to distribution and installation. We Supply all your industrial process piping needs. Our team designs and engineers systems to fit your exact needs.

Here’s just a few services we provide:

  • Carbon & Stainless Steel Pipe–All Schedules
  • PVC, CPVS, ABS & Polypro Piping
  • Welded, Threaded, Brazed, Soldered, or Solvent Joint
  • Pneumatic, Hydraulic, Liquids, Solids & Gases
  • Installation, Service & Repair
  • Plastic Welding
  • Copper & Alloy Pipe
  • Natural Gas
  • Process Piping
  • Sanitary Pipe
  • Valving & Control
  • Tubing (Including Plastic)
  • Underground & Ductile
  • Steam & Heating Systems


M. J. Nester provides detailed planning and shutdown schedules. We also provide equipment, special tools, progress monitoring and reporting, quality control and documentation, observation, special recommendations to client, skilled labor and supervisory support.

Here are just a few services we provide:

  • Dismantle & Assembly
  • Match Marking
  • Labeling
  • Rigging
  • Packing, Shipping & Trucking
  • Layout


M. J. Nester provides rigging to safely lift and move machinery around Allentown, Pottstown and Philadelphia. If you’re in need of having your plant relocated or machinery moved, M.J. Nester is here to help! Contact us today and let’s discuss.

Contact us if you’re interested in discussing any of the above mechanical or industrial services further.

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