IndustrialMaintenance Services
Industrial Maintenance Services
Manhattan Mechanical Services

Custom Process Pipe Fabrication & Welding Services

Manhattan Mechanical Services specializes in providing turnkey process piping fabrication
services to the heavy and light industrial market. Our Illinois and Northwest Indiana fabrication
shop locations allow us to offer custom prefabrication and preassembly of process piping. We offer highly trained pipefitters (NCCER Certified) to assist you in your custom welding needs. Many of our pipefitters are trained and certified specialty welders capable of producing x-ray quality welds on carbon steel and all alloys.

OR CALL (779) 771-6789

Benefits of Prefabrication

Improved Safety & Quality

Increased Efficieny

Lower Costs

Reduced Field-Construction Risks

Early Equipment Testing & Project Startup

Scheduled Savings

Field Verification

We can maximize efficiency, save costs and minimize downtime for our clients. We provide quality, prefabricated piping ready to be installed. Our pipefitters will field verify all dimensions prior to fabrication. If we are permitted to field verify first, the pipe is guaranteed to fit in the field.
Our precision equipment ensures accurate cutting, fitting and welding. We can fabricate piping skids to exact specifications. We commonly work with carbon steel, stainless steel and high
alloy metals.

Industrial Maintenance Services


We not only fabricate, assemble, inspect, and disassemble process piping and structural steel, but we also move the finished product with our vehicles to your project location, saving you on transportation costs.

Fabrication Capabilities

High-Quality, In-House Welding Services

Isometric Drawing Development

Weld Mapping

In House Post Weld Heat Treatment

Sandblasting & Painting

And more!

Capabilities Specifications


  • Carbon Steel, Stainless Steel, Chrome Moly, Duplex Stainless, Nickel,
    Inconel, Monel, Hastelloy

Pipe diameter:

  • 3/4” to 30”

Wall thickness:

  • .1875” to 8” .125 to schedule 160

NBIC “R” Stamp

  • B31.3 and API 1104


  • 4 AWS/CWI Welding Inspectors on staff

Shop Equipment

  • Overhead Cranes
  • 24 welding machines
  • Saw Equipment up to 24” in Diameter
  • Onsite Heat Treat
  • Pipe Beveler
    • Torch and Mechanical

Project Management and Design Services

  • Single Point of Contact Project Management
  • Transparent Unit Pricing
  • Detailed project scheduling with spool status reports

Industries Served

  • Petrochemical
  • Refining
  • Ethanol
  • Products Terminals
  • Polyethylene
  • Power Generation
  • Power Piping
  • General Process & Utility
  • Steel Mill
  • Industrial Facility Maintenance
  • Pulp and Paper