Part of Construction and public works: Finishing

Building insulation installer vacancies in Belgium

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Job info

What does a building insulation installer do?

How do I become a building insulation installer? See the guide

As a building insulation installer you insulate roofs, terraces, walls, facades and floors and make them watertight. The trade is also known as insulation fitter or thermal insulation installer. You set up the site, remove the existing covering and prepare the surface. You then place insulation materials, spray, blow or inject insulation and install acoustic insulation where needed. You check the sealing of the insulation and covering layers, also during renovations where you renew old insulation. You follow the safety rules, keep your work records and tidy the site afterwards. In Flanders you play an important part in making buildings more energy efficient, working in the finishing sector of construction, often outdoors and at height.

Typical tasks

  • Set up the site and prepare the work
  • Remove the existing covering and prepare the surface
  • Place insulation materials
  • Spray, blow or inject insulation
  • Install acoustic insulation
  • Check the sealing of insulation and covering layers
  • Tidy the site and keep work records

Required skills

  • A VCA basic safety certificate is requested on many sites
  • Good physical condition and no fear of heights
  • Working precisely when sealing layers
  • Knowledge of insulation materials and techniques
  • Handling materials and waste with respect for the environment

What does a building insulation installer earn?

Data last updated on 6 July 2026

Indicative Belgian pay range: €19–€25 gross per hour. Experience, construction premiums and specialised techniques such as spraying or injecting influence your pay. Employee pay estimate; actual pay depends on experience, sector pay scales and working hours. Premiums, overtime and benefits are separate.

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