Mechanical Construction Subcontracting
Piping fabrication, structural steel erection, static & rotating equipment installation, and plant maintenance.
Service Overview
Providing expert mechanical subcontracting services for oil refineries, petrochemical plants, power generation units, and heavy industrial facilities—including ASME coded piping and heavy steel erection.
What We Provide
Key Technical Capabilities
Our Step-by-Step Execution Process
Piping Spool & Steel Prep
Reviewing isometric drawings and material test reports (MTRs).
Shop & Field Welding
Executing welds under approved WPS/PQR procedures.
Heavy Erection & Rigging
Lifting and bolting structural frames and pressure vessels.
Pressure Testing & NDT
Radiography, Hydrotest, and Ultrasonic weld verification.
System Pre-Commissioning
Flushing, chemical cleaning, and alignment checks.
Why Choose QSC for Mechanical Construction Subcontracting?
- ASME Coded Welders and Qualified WPS Procedures
- Advanced Rigging Plans for Heavy Lifts
- High First-Time Pass Rate in Weld Radiography
- Specialized Shutdown Execution Teams
Need This Service?
Request a customized proposal, manpower deployment schedule, or equipment rate sheet for Mechanical Construction Subcontracting.
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