Insulators work with more than just heating and cooling. They also help reduce the passage of sound, air, smoke and fire. They are essential to residential construction and every large institutional, commercial and industrial construction project in the country. They can be self-employed or employed by construction companies and insulation contractors.

You are detail-oriented.

You are agile and physically fit.

You are comfortable working at heights and in cramped spaces.


  • Apply, remove and repair thermal & acoustical insulation on all types of industrial equipment (duct piping, tanks, vessels, etc.)
  • Read and interpret specifications to determine insulation requirements
  • Select the amount & type of insulation and method of securing insulation
  • Use hand & power tools to measure, cut and fit materials
  • Use spraying, blowing, pasting, strapping, taping & other methods
  • Install vapour barriers & fire-retardant materials

Key Skills & Attributes

(technical training and on the job)
  • Strong communication skills, reading & numeracy
  • Strong problem-solving & planning skills
  • Manual dexterity
  • Physical fitness & ability to lift heavy materials (25 kg)
  • Ability to work at heights & in cramped spaces
  • Ability to work in hot & cold environments

What You’ll Need

Entrance Requirements

To potentially reduce the length of apprenticeship term: Completed courses of study, insulator-related work experience or a related journeyperson certificate AND employer’s recommendation.

Apprenticeship Program: 3 years, includes 4,551 hours of technical training and on-the-job training, and exam. Journeyperson certificate awarded after successful completion. As an apprentice, you also earn while you learn.

Start Building Your Skills!

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Hourly Pay

Contact the local union for more information on hourly pay, benefits, pensions and more.

Construction Workers Needed

55,810 Construction Workers needed by 2030*

*BuildForce Canada

Did You Know?

Insulators play a key role in helping the environment by ensuring proper insulation is used that can significantly save energy and reduce greenhouse gas emissions and pollution.