Industrial Millwright Apprenticeship

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Position Details

At Hydro One, Industrial Millwrights serve an apprenticeship through the Hydro One/PWU Joint Mechanical Maintainer Training Committee to become a Industrial Millwright.

Industrial Millwrights Apprentices at Hydro One keep machinery and mechanical equipment in efficient operating condition. Industrial Millwrights Apprentices receive additional training at Hydro One to become Regional Maintainers - Mechanical Maintenance.

You will learn to fit together the component mechanical parts of assemblies such as boilers, turbines, condensers, generators, motors, synchronous condensers, governors, compressors and control apparatus. Industrial Millwrights diagnose defects, dismantles, repairs, aligns, assembles and adjusts such equipment. Apprentices at Hydro One also fabricate and repair components for equipment and tools by lay- out, cutting, shaping, fitting and joining. They also apply welding techniques to build, fabricate and repair all types of metals and plastics, associated with pressure vessels, piping, tools and equipment.

Training & Experience

The apprenticeship for an Industrial Millwright is made up of four 2000 hour work terms. Each term is approximately 1 year in duration. The apprenticeship includes 3 in school training sessions of 8-10 weeks each at a community college.

Applicants for these positions must have successfully completed Grade 12 or the equivalent including Grade 12 Mathematics and Grade 12 English.

Your success is based on a good work ethic, quality skills and a great attitude. Previous mechanical work experience is an asset.


Upon successful completion of the apprenticeship program, you will be encouraged to apply for Industrial Millwright opportunities anywhere in the Hydro One system.

Compensation & Benefits

In addition to enjoying a satisfying career with fellow skilled trade's people, you are paid while learning and enjoy an excellent benefit package. Apprentices start at $22.60/hr which includes benefits, pension and vacation pay, with pay adjustments upon completion of each term.

Current Industrial Millwrights earn a wage package of approximately $49.00/hr which includes benefits, pension and vacation pay.

Position Demands

This work will appeal to those individuals that enjoy physical work that is primarily outdoors in all types of weather conditions. You will be required to work at heights, ladders, aerial devices, climb steel structures and work in confined areas.

Next Steps

Prior to proceeding to the application process, please ensure you have the following information readily available to complete your application. If you do not have this information, please refer to the FAQ section for further information before proceeding.

  • Electronic copy of your personal Resume to be available for copy and paste (mandatory)
  • Electronic copy of your cover letter to be available for copy and paste (optional)
  • For the Electrician, Powerlines Technician, Utility Arborist, Truck and Coach Technician and Cable Splicer apprenticeships, a copy of your High School Transcript(s) which includes course codes and marks (mandatory)
  • For Meter Technician Trainee applicants, if you are selected for an interview, you will be required to send us a copy of your College Diploma or University Degree showing successful completion of the mandatory Community College/University programs. (mandatory)
  • We'll keep your application on file for up to one year and contact you if your qualifications match any of our future Industrial Millwright Apprenticeship opportunities.

    Hydro One recruits on a seasonal basis throughout the year. Please visit the Hydro One & Power Workers Web Site(s) for future job postings.

    Click here to view Current Job Opportunities