How to become an insulation worker

Official title: Insulation workers

Also called: Acoustic insulation worker, Boiler and pipe insulation worker, Insulation installer, Insulation worker, Refrigeration and air conditioning equipment insulation worker

Insulation workers apply and repair insulating materials to buildings, boilers, pipes or refrigeration and air conditioning equipment.

Main tasks

• Cutting insulation material by size and shape
• Applying slabs and sheets of insulating or sound-absorbing materials to walls, floors and ceilings of buildings
• Blowing and packing insulating or sound-absorbing materials into cavities between walls, floors and ceilings of buildings with power-driven machines
• Examining plans, specifications and work sites to determine the type, quality and quantity of insulation material required
• Applying insulating materials to exposed surfaces of equipment such as boilers, pipes and tanks
• Insulating refrigeration and air conditioning equipment

Ways in

• Licence or registration: Registering body: Construction Industry Council. Law: Construction Workers Registration Ordinance (建造業工人註冊條例), Cap. 583. Summary by Peernovo; check the body's current rules.

Pay · Outlook · AI and this job

• Median pay: HK$21,000 a month
• About 387,500 people in 2025, and about 403,200 projected by 2028. (+4.1%)
• Generative AI can do relatively little of this work, by the ILO's global estimate.

Related jobs

• Air conditioning and refrigeration mechanics
• Roofers
• Glaziers
• Plasterers
• Plumbers and pipe fitters
• Floor layers and tile setters

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Questions people ask

Do you need a degree to become an insulation worker?

Usually not. Only 4% of people in this job hold a bachelor's degree or higher.

Will AI change the work of an insulation worker?

Generative AI can do relatively little of this work, by the ILO's global estimate.

Sources

• Census and Statistics Department (2021 Population Census): 2021 Population Census, Interactive Data Dissemination Service: working population by occupation (38 groups) and sex, age, education, income; median income and field of education (9 groups) (2021 Population Census), retrieved 4 October 2026
• Census and Statistics Department (General Household Survey): Median monthly employment earnings by occupation (9 groups), excluding foreign domestic helpers (Table 210-06317A); employed persons by occupation, age and sex (210-06307A) and by industry (210-06308A) (2025 annual (series to 2026-07)), retrieved 4 October 2026
• Labour and Welfare Bureau; tables published by C&SD: Mid-term Update of Manpower Projection to 2028: supplementary statistical tables (5 occupation groups, 17 selected industries) (2025 to 2028 (published 2026-09)), retrieved 4 October 2026
• International Labour Organization, Generative AI and Jobs: A Refined Global Index of Occupational Exposure (ILO Working Paper 140, Gmyrek et al.) (ILO Working Paper 140, May 2025, Annex Table A1), CC BY 4.0, retrieved 4 October 2026

Updated 4 October 2026