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Cavity insulation installer

Alternative titles for this job include Cavity wall installer

Cavity insulation installers fit insulation, soundproofing materials and cladding in buildings.

Average salary (a year)

£17,000 Starter


£32,000 Experienced

Typical hours (a week)

42 to 44 a week

You could work


How to become

Explore the different ways to get into this role.

How to become a cavity insulation installer

You can get into this job through:

  • a college course
  • an apprenticeship
  • applying directly


You could do a college course, which may help when you look for a trainee job after you finish. Courses include:

  • Level 1 Award in Construction Crafts
  • Level 2 Certificate in Construction Operations
  • Level 2 Certificate in Construction and Building Crafts

Entry requirements

You may need:

  • 2 or fewer GCSEs at grades 3 to 1 (D to G), or equivalent, for a level 1 course
  • 2 or more GCSEs at grades 9 to 3 (A* to D), or equivalent, for a level 2 course

More Information


You could complete a commercial thermal insulation operative intermediate apprenticeship, or industrial thermal insulation technician advanced apprenticeship.

Entry requirements

You'll usually need:

  • some GCSEs, usually including English and maths, or equivalent, for an intermediate apprenticeship
  • 5 GCSEs at grades 9 to 4 (A* to C), or equivalent, including English and maths, for an advanced apprenticeship

More Information

Direct Application

You could apply directly for jobs. Employers will usually look for GCSEs at grades 9 to 4 (A* to C) in English, maths or design and technology. Experience in construction, lagging or cladding could be useful.

More Information


Further information

You can find out more about working in cavity insulation from Go Construct.

What it takes

Find out what skills you’ll use in this role.

What it takes

Skills and knowledge

You'll need:

  • to be thorough and pay attention to detail
  • the ability to work well with others
  • knowledge of building and construction
  • the ability to operate and control equipment
  • the ability to use your initiative
  • persistence and determination
  • the ability to work well with your hands
  • customer service skills
  • to be able to carry out basic tasks on a computer or hand-held device

Restrictions and Requirements

You may need a driving licence for some jobs.

What you’ll do

Discover the day to day tasks you’ll do in this role.

What you'll do

Day-to-day tasks

As an installer you would:

  • set up scaffolding or access platforms where required
  • carry out pre-installation surveys
  • mark out ventilation, wiring and pipework ducts in buildings
  • work out the volume of space to be filled, and the amount of materials needed
  • drill holes into the walls of a building
  • inject insulation materials into cavity spaces or fit pre-formed cladding
  • re-fill drill holes and re-point mortar
  • check all airbricks and flues are clear
  • make sure materials and methods meet building regulations

Working environment

You could work at a client's business, at a client's home or on a construction site.

Your working environment may be at height, cramped and physically demanding.

Career path and progression

Look at progression in this role and similar opportunities.

Career path and progression

With experience, you could become a team leader, site supervisor or estimator. You could also set up your own installation business.

Current opportunities

Find apprenticeships, courses and jobs available near you.

Current opportunities

Apprenticeships In England

Apprenticeship Industrial Thermal Insulation Technician

  • Wage: £209.00 Weekly
  • Location: Barry

Apprentice Commercial Thermal Insulation Operative

  • Wage: £179.90 Weekly
  • Location: Ashford

Courses In England

Diploma in Construction Skills

  • Provider: KENDAL COLLEGE
  • Start date: 09 January 2022
  • Location: Kendal

Construction Skills Level 1

  • Start date: 05 September 2022
  • Location: Oldham

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