GCM - Gulf Coast Modification Services




Gulf Coast Modification provides a full range of valve modification capabilities for all types, sizes and pressure classes of valves. In addition to standard modifications, our in-house engineers regularly work with our customers to develop custom valve solutions. Most modifications are factory-approved allowing original manufacturer warranties to remain intact. View Manufacturer Approvals 


  • Packing and Gasket Changes
  • Bolting Changes
  • Trim Changes
  • Nace Trim Certification
  • End Connection Changes
  • Bypass and Drain Installations
  • Weld On Flanges
  • Locking Device Installation
  • Gear Installation
  • Cryogenic Extensions
  • Soft Seat Inserts for Gate and Globe Valves
  • Buried Service Extensions
  • Lock Open Lever for Swing Check
  • Outside Weight and Lever for Swing Check
  • Bolted to Welded Bonnet Conversion


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