Unit Group

7293 Insulators

Insulators apply insulation materials to plumbing, air-handling, heating, cooling and refrigeration systems, piping equipment and pressure vessels, and walls, floors and ceilings of buildings and other structures, to prevent or reduce the passage of heat, cold, sound or fire. They are employed by construction companies and insulation contractors, or they may be self-employed.

Example Titles

boiler and pipe insulator
building insulator
firestopping insulator
heat and frost insulator
insulation applicator
insulation mechanic
insulator
insulator apprentice
sound insulator

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Main duties


Insulators perform some or all of the following duties:
  • Read and interpret drawings and specifications to determine insulation requirements and select type of insulation required
  • Measure and cut insulating material to required dimensions using hand and power tools
  • Apply and secure insulation using spraying, blowing, pasting, strapping, taping and other application and installation methods
  • Fit insulation around obstructions and between studs and joists
  • Install vapour barriers
  • Apply waterproofing cement over insulating materials to finish surfaces
  • Remove asbestos or urea-formaldehyde insulation from buildings when required.

Employment requirements

  • Completion of secondary school is usually required.
  • Completion of a three- to four-year apprenticeship program
    or
    A combination of over four years of work experience in the trade and some high school, college or industry courses in insulating is usually required to be eligible for trade certification.
  • Trade certification for insulators (heat and frost) is compulsory in Quebec and available, but voluntary, in Newfoundland and Labrador, Nova Scotia, Prince Edward Island, New Brunswick, Manitoba, Saskatchewan, Alberta, British Columbia, the Yukon, the Northwest Territories and Nunavut.
  • Red Seal endorsement is also available to qualified insulators (heat and frost) upon successful completion of the interprovincial Red Seal examination.

Additional information

  • The Red Seal endorsement allows for interprovincial mobility.
  • Progression to supervisory positions is possible with experience.

Classified elsewhere

  • Supervisors of insulators (in 7205 Contractors and supervisors, other construction trades, installers, repairers and servicers )

Classification Structure - 7