Heat & Frost Insulator

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Certificate of Qualification 253A
❝ It means a lot to me knowing my work has a positive impact on the environment.❞
Heat and frost insulators work with more than just heating, cooling and refrigeration systems, they also help reduce the passage of sound, air, smoke and fire. They are essential to every large institutional, commercial and industrial construction project.

Key Skills & Attributes

  • Strong communication, reading & numeracy skills

  • Strong problem-solving & planning skills

  • Ability to interpret specifications and shop drawings

  • Physical fitness

  • Ability to work in diverse weather & at heights

  • Ability to work with machinery & power tools

Entrance Requirements

  • Grade 12 diploma

  • Knowledge of algebra & geometry

Apprenticeship Program

The Insulator apprenticeship program provides the opportunity to earn while you learn. Local 95 delivers the three levels of in-school technical training at their state-of-the-art facility located in Richmond Hill (just north of Toronto). The 3-4 year program of 6,400 hours of in-school and on-the-job training prepares you to succeed as a professional insulator mechanic.


  • Read and interpret specifications to select insulation type

  • Apply insulation materials to plumbing, air-handling, heating, cooling and refrigeration systems, piping equipment, pressure vessels, walls, floors & ceilings

  • Apply and secure insulation using spraying, blowing, taping & other methods

  • Measure and cut insulating materials using hand & power tools

  • Install vapour barriers and fire-retardant materials

Journeyperson Wage Rate:


Start Building Your Skills

Do you have the skills to be successful in the construction building trades?

Learn how you can succeed in technical training and on the job.

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.


International Association of Heat and Frost Insulators and Allied Workers