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PBJ Engineering Services Ltd

Do you need Thermal Hydrolysis Plant operational support, training and maintenance? Does your critical water process equipment require contract support and safety assurance? Visualise your assets and maintain operational efficiency through our 360 degree image capture. Invest in your operations through our professional training and technical support services.

PBJ Engineering delivers a range of services to support your wastewater treatment and process facilities – we specialise in THP systems and Steam Boiler services, including CEA and BOAS accreditation.  Our team is available nationally to support you, on a contract, project or emergency basis.

Supporting your facility and team with a programme custom designed to your needs, typically includes elements of:

  • Whole System Contracts
  • Consultation and Best Practice
  • Commissioning and Maintenance
  • Optimisation and Monitoring
  • Refurbishment and Rebuild
  • Component Fabrication and Supply
  • Training for BOAS and CEA accreditation

Some of our typical on-site activities include full capabilities in;

  • Thermal Hydrolysis Plants
  • Steam Boilers
  • Sludge Dewatering Processes
  • Water Treatment
  • Coil and Heat Exchangers
  • Pumps

Our ancillary support services includes;

  • 360O Image Capture – Virtual Plant Training and Maintenance
  • Boiler Log Books – Custom design & print
  • Boiler House design – Advice and guidance
  • Equipment – Hire services and component spares

Our priority is the safety of all personnel and the operational efficiency of your facilities.  We work with you and your team, to maintain and support your infrastructure – protecting your people, investment and optimising your asset performance.

Our team is qualified with CITB / SMSTS, Achilles, and CEA / BOAS.

Project involvement includes:

Thames Water:

  • Basingstoke THP (commissioning, operation, training, optimisation, maintenance)
  • Beckton THP (energy surveys)
  • Chertsey THP (operation, training, optimisation)
  • Crawley THP (commissioning, operation, training, maintenance, part supply)
  • Crossness THP (operation, optimisation, energy reduction, training, energy surveys)
  • Longreach THP (operation, training, optimisation)
  • Oxford THP (operation, optimisation, fault finding)
  • Riverside THP (water treatment installation, design, energy surveys)

Severn Trent:

  • Finham THP (operational support)
  • Strongford THP (operation, training)

Southern Water:

  • Goddards Green THP (operational support & performance monitoring)


  • Nestles – Trowbridge – steam boiler operational contract (24 hour call out)
  • Heathrow airport – hot water boiler – scale cleaning