Leak Detection and Repair (LDAR)

HydroChemPSC is the largest provider of Leak Detection and Repair (LDAR) services in North America, operating in over 100 client facilities – and we’re internationally. More than 500 dedicated specialists provide the most comprehensive and innovative compliance services and solutions in the industry. Our field technicians and site supervisors manage programs using proprietary LDAR technology and are supported by a management staff with over 100 years of combined experience.

We are the only LDAR service provider with an ISO 9001 calibration lab to ensure equipment repairs and maintenance meet strict intrinsic safety and environmental performance requirements. We offer the most comprehensive Method 21 compliance services available, including, LDAR, Database Management, Tagging/Inventorying, Greenhouse Gas (GHG) surveys, El Paso/BWON, Audits, Training, and more.


  • Environmental Compliance
  • IR Camera Surveys
  • El Paso Method & BWON
  • LDAR Training & Auditing
  • Inventory & Tagging Projects
  • LDAR Database Management
  • ISO Certification

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