Maintenance

William Johnson Maintenance provides comprehensive maintenance, repair, and overhaul services for process and mechanical equipment across the oil & gas and chemical industries. Our scope covers the full equipment lifecycle — from diagnostics and preventive maintenance to refurbishment, modernization, and commissioning.

• Comprehensive turnkey repair and refurbishment of process and mechanical equipment — from diagnostics to commissioning
• Development and execution of preventive maintenance programs tailored to technical regulations and production cycles
• Procurement planning and supply of original spare parts from verified manufacturers
• Organization of mechanical equipment repair with transport to specialized OEM-certified workshops
• Long-term service and maintenance of pumping, compressor, and gas turbine equipment, including condition monitoring
• Repair and modernization of process control systems (SCADA, PLC) — from software updates to integration of new automation solutions
• Maintenance of gas analyzers and instrumentation, including calibration, verification, and functionality restoration

William Johnson Maintenance is a strategic partner for industrial enterprises in technical servicing, scheduled and emergency repair, modernization, and equipment restoration. We deliver end-to-end maintenance solutions ensuring reliability, performance, and operational continuity.

Our company maintains a strong market position through:

• Engineering expertise and deep industry experience
• Modern digital technologies and international management standards
• High mobility of service teams and rapid response to client needs

We position ourselves as a reliable and technology-driven partner capable of ensuring uninterrupted production processes and maximizing equipment performance — even in complex and remote operating environments.

• Highly qualified engineering and technical staff with proven experience in maintaining and repairing mission-critical process equipment
• Exclusive use of original and certified spare parts compliant with international standards and OEM specifications
• Optimized maintenance and repair timelines through efficient planning and logistics supported by digital management tools (SAP ERP)
• Flexible service formats — execution both on-site and at specialized repair facilities
• Guaranteed quality supported by internal QA procedures and certification
• Integration of digital monitoring and diagnostic systems (SCADA, PLC, predictive analytics)
• Engineering approach focused on extending equipment lifecycle, improving efficiency, and reducing operational costs

• Mobile service teams ensuring rapid on-site response
• Preventive and predictive maintenance programs to extend equipment lifetime and reliability
• Reliable spare parts supply through an updated vendor database
• Expert team with hands-on experience in oil & gas and chemical equipment maintenance
• Full compliance with OEM, API, ISO, and ASME standards

• Advanced maintenance tools and systems:
– SAP PM for planning, scheduling, and asset tracking
– SCADA / PLC integration for real-time monitoring and early issue detection