Maintenance and Turnarounds


Denholm Zholdas provide a unique integrated support solution covering mechanical and electrical services including instrumentation, automation, asset management, preventative maintenance planning, turnaround execution, valve healthcare, security systems, fabrication, logistics and manpower.

An effectively planned maintenance regime is key to a successful operation, and we understand the importance of working as an integrated part of your team to ensure success and to achieve maximum uptime for your assets.

Our experienced and specialist workforce enables us to assist with the scheduling and planning of maintenance activities, providing rapid support with our laboratories, workshops, valve shops, plant, painting, blasting, logistics, mechanical and electrical services.


As the largest turnaround specialist contractor in Kazakhstan, Denholm Zholdas have successfully carried out turnarounds and shutdowns for clients on the major facilities for over 20 years.

Supporting major turnaround and outage projects in the harshest of environments, Denholm Zholdas complete projects safely, on time and on budget.

Our turnaround services:

  • Scaffolding
  • Industrial cleaning and water jetting
  • Insulation and fireproofing
  • Specialist coatings
  • Plant hire
  • Valve maintenance and repair
  • Heat treatment
  • Mechanical services
  • Hydro testing and leak sealing

We also support the provision of specialist third parties attending turnaround and non turnaround work scopes.

Denholm Zholdas additionally supply:


  • Specialist planning teams pre turnaround phase
  • Estimation support
  • Scope validation support

infrastructure support

  • Temporary piping and storage
  • Temporary canteen / offices

Denholm Zholdas

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