Maintenance

Optimized Assets. Improved Reliability.
As one of the largest maintenance providers in the U.S., Day & Zimmermann delivers comprehensive, integrated services that optimize performance and output during every stage of a plant’s operating lifecycle. We deliver a broad portfolio of maintenance support, from planning and scheduling, to preventive maintenance, predictive maintenance, and operating (online) plant support. We manage projects of all sizes and levels of complexity and routinely support both planned outages/turnarounds and emergency call-out assignments. We also have the ability to identify, hire and place all disciplines of labor to meet your specific needs. 

Balance-of-Plant Upgrades and Capital Projects
Day & Zimmermann’s construction experience dates back more than a century, with expertise that ranges from minor renovations to new plant construction, major expansions and upgrades. Our full-service capabilities include field engineering and work package planning, estimating, scheduling, as well as cost tracking, project management, QA/QC and site access processing.

Our comprehensive maintenance solutions include:

  • Large-scale plant maintenance and modifications
  • Routine, predictive and corrective maintenance
  • Shutdowns, turnarounds and outages (STO)
  • Emergency “call-out” turnarounds and outages
  • Construction/capital projects and plant improvements
  • Fabrication and machining
  • Specialty services
  • Nuclear facility decommissioning and dismantling services 

      Labor Resources Management
      Day & Zimmermann maintains separate union and non-union companies, Day & Zimmermann NPS® and DZ Atlantic, enabling us to serve customers throughout the U.S., regardless of required labor posture. Our people are the key to our success and our ability to attract and develop labor with the right skills and experience is a competitive advantage that allows maximum flexibility for our customers. Whether you require a few technicians, a construction team or a total craft labor work force, Day & Zimmermann has the resources to get the job done. 

    • Valve
    • Condenser
    • Professional staffing
    • Turbine
    • Radiological
    • Project Controls (planning, scheduling and cost control)
    • Craft recruitment and supervision
    • Procurement