About US > Who We Are

Haji Hassan Engineering Shop (HHW) is a mechanical engineering & construction company established in 1981 as the engineering arm of Haji Hassan Group.


The compnay is capable of manufacturing a wide range of custom-built process equipment required by operations including oil & gas, refineries, petrochemical, fertilizer, power and water & desalination plants. HHW manufacturing facility is equipped with the state of the art machinery and is further augmented with the dedication and commitment of highly skilled teams of experienced & qualified 6G Code Welders, Fabricators, Engineers and Management staff.


HHW is committed to providing to its customers, a wide range of quality products and services which include but is not limited to:

  • Shell & Tube H.E., Columns, and Pressure Vessels in different metallurgies and plate thicknesses, Pop-A-Plug. 

  • Custom-built Process Equipment: Scrubbers, Silencers, Cyclones, Exhaust Stacks etc. 

  • Skid Mounted Process Systems & Modules. 

  • Process and Storage Tanks. 

  • Pre-fabricated Metallic Pipe Spools: 2” and above in different metallurgies. 

  • Structural Steel Fabrication. 

  • On-Site & Off-Site Repair & Maintenance Services: Heat Exchanger Refurbishment, Machine Shop Services etc.