CUSTOM SHEET METAL & DUCT FABRICATION IN PASCAGOULA, MS
JMC Fabrication delivers commercial-scale HVAC duct fabrication and custom sheet metal fabrication for the Gulf Coast from Pascagoula, MS. SMACNA-compliant. AWS certified. One industrial fabrication shop handling duct, pipe spools, and specialty metal from a 50,000 sq ft facility.
- Carbon steel for structural, piping, and duct applications
- Stainless steel for corrosion-critical and marine applications (304, 316)
- Galvanized steel, standard for SMACNA commercial HVAC duct
- Copper for piping assemblies and specialty systems
Whether you're looking for high-precision bends or heavy-duty industrial shearing, our shop is officially geared up to handle your toughest fabrication needs. Our hydraulic press brake delivers consistent, high-tonnage pressure for complex angles and clean profiles across a variety of material thicknesses. With our mechanical shear, we provide fast, burr-free industrial cutting for sheet and plate, ensuring perfectly square edges every time. The Autofold 516 streamlines the folding process, making it the perfect solution for high-volume HVAC and sheet metal projects.
"If you can draw it, we can shear, roll, fold, and press it into reality."
JMC produces SMACNA-compliant rectangular, round, and oval duct systems at commercial volume for general contractors and mechanical subcontractors. Standard material is galvanized steel; stainless steel is available for specialty applications including food service, chemical environments, and high-humidity installations. Every duct package is fabricated to the SMACNA class and gauge the project specification requires.
Shop-fabricated pipe spools for oil and gas and marine applications, produced from isometric drawings in carbon steel and stainless steel. Full documentation and NDE packages are available per project specification. AWS and NAVSEA certified welding on all pipe spool work.
Beyond duct and pipe, JMC handles custom metalwork from concept through delivery:
- Pump skids and equipment packages
- Penetrations and sleeves (structural and pipe)
- Flanges and custom fittings
- Structural subbases and mounting frames
- Copper piping assemblies
- Custom weldments and specialty assemblies
- All Fabrication Services →
The full service catalog: pipe spools, HVAC duct, custom metal, and material-specific capabilities.
- Industries We Serve →
Marine, oil & gas, and commercial vertical pages with industry-specific credentials.
- JMC Insights →
Project guidance and material/process tradeoff articles from the JMC shop floor.
What materials does JMC Fabrication work with?
JMC works with carbon steel, stainless steel, galvanized steel, and copper. We select materials based on application requirements: environment, pressure class, code compliance, and budget.
Learn More →Can JMC handle large commercial duct fabrication orders?
Yes. JMC operates a 50,000 sq ft fabrication facility in Pascagoula, MS with the capacity to handle large-volume commercial HVAC duct orders for general contractors and mechanical subcontractors.
Learn More →What is the difference between duct fabrication and pipe spool fabrication?
Duct fabrication produces sheet metal air distribution systems (rectangular, round, oval) per SMACNA standards. Pipe spool fabrication produces pre-assembled pipe sections from carbon or stainless steel for process piping, oil and gas, and marine applications, each with its own weld procedures, NDE, and documentation requirements.
Learn More →What industries does JMC fabricate duct for?
Commercial construction, marine and shipyard, oil and gas and industrial, and institutional and manufacturing. Each drives a different construction approach, from SMACNA galvanized HVAC duct to welded heavy-gauge process duct.
Learn More →Does JMC fabricate duct for hospital and healthcare projects?
Yes. Healthcare is the highest-specification commercial duct JMC produces, in galvanized and stainless steel, built to the project SMACNA pressure and leakage class with the documentation commissioning requires.
Learn More →Does JMC fabricate duct for data center projects?
Yes. Data center packages are usually standard SMACNA construction at large volume with highly repetitive fittings, fabricated as production runs and staged hall by hall against the commissioning date.
Learn More →Does JMC fabricate duct for school and university projects?
Yes. Education work is standard SMACNA construction on a fixed calendar, so the package is fabricated and staged before the summer install window opens, with the documentation public bid work requires.
Learn More →Does JMC fabricate duct for hotel and multifamily projects?
Yes. Hospitality and multifamily duct is highly repetitive, so the typical unit and corridor details get coordinated once and the repeats fabricate as production runs, with flat-oval where corridor plenums are tight.
Learn More →Does JMC fabricate duct for warehouse and distribution center projects?
Yes. Warehouse packages run long spiral and rectangular trunk at high bay with a low fitting count, with section length sized to the lift equipment and access the install crew has on site.
Learn More →Does JMC fabricate duct for shipyard newbuild and refit work?
Yes. Marine and shipbuilding is a core JMC market. Newbuild duct is drawn and sequenced from the model, while refit duct is measured against the actual vessel and turned around inside the availability window.
Learn More →Does JMC fabricate duct for refinery and plant turnaround work?
Yes. Industrial and process duct is welded heavy-gauge construction built to the process specification, fabricated and staged before the outage opens rather than during it.
Learn More →Does JMC fabricate duct for military and federal projects?
Yes. The shop takes on industrial and military specification work, where material traceability, welder qualification, inspection records, and a complete closeout package are part of the deliverable.
Learn More →How do I request a quote from JMC Fabrication?
Contact us at info@jmcfab.com, call (228) 762-3156, or submit the form on our Contact page. Include your scope, materials, quantities, and timeline and we'll respond promptly.
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