LEVEL 4 AWARD in Domestic

  • Self-guided e-learning platform
  • Online or in a Retrofit Academy training centre
  • Funding available for course costs




£1,300 + VAT

funded through the department of energy security and net zero


What is a Retrofit Assessor?

Retrofit assessors visit properties and carry out surveys. These surveys are necessary to inform the decisions about which energy efficiency measures should be installed.

Under the supervision of a retrofit coordinator, their work involves assessing the condition, occupancy and significance of the building in line with sector guidance.


Level 4

Aim Qualifications

All learners successfully passing the assessments will be recommended for a Level 4 Award in Domestic Retrofit Assessment from AIM Qualifications, an Ofqual-regulated awarding body.


Completed Level 3 Domestic Energy Assessor course

As a regulated qualification, the Level 4 Award in Domestic Retrofit Assessment has some specific eligibility criteria. The minimum requirement for all methods of study is a Level 3 Domestic Energy Assessor qualification.


Portfolio of evidence

Given the role’s importance, this course is written and overseen by the sector’s most experienced practitioners.


Nine modules

  • PAS 2035 and Retrofit Assessments
  • Context of Dwellings
  • Assessing the Condition of a Dwelling and Recording Any Defects
  • The Requirements of Occupancy Assessments
  • Ventilation Requirements of a Dwelling
  • Energy Performance of a Dwelling
  • Significance of a Dwelling
  • Retrofit Assessment Reports
  • Retrofit Advice to Customers

Method of study

Blended learning

  • State-of-the-art digital learning platform
  • Expert-led retrofit training
  • Peer learning and support
  • In-depth learning and technical resources
  • Specialist mentor support


Unrivalled support

  • Membership
  • State-of-the-art learning management system
  • 24/7 access
  • Mentor support
  • Expert-led sessions
  • Customer support
  • Self-paced learning 
  • Interactive and engaging learning 
  • PAS document

What Does a Retrofit Assessor Do?

The role involves:

Providing information about the home used by the retrofit designer

Carrying out an appraisal of the dwelling’s heritage and architectural features

Determining the construction and condition of the home, including the building services such as heating, hot water, ventilation and lighting

Identifying constraints on the building that may prevent any energy efficiency measures (EEMs) being installed

Identifying any defects and structural issues, including damp and mould

Identifying any EEMs already installed

Carrying out a measured survey of the building and providing a report

Who Should Become a Retrofit Assessor?

Retrofit assessor is a role for those with good judgement and a sound technical understanding of whole-house retrofit. It’s a senior role with responsibility and this is often reflected in the amount you’re paid. 

You will be able to identify where improvements are needed, the appropriate solution given the property’s age and condition, and feel comfortable with several different line reports relying on you for the next steps.

You’ll also need to be capable of writing clear and actionable reports based on the retrofit coordinator’s requirements. This will include a full EPC, ventilation and occupancy assessment, and a condition survey.

Download a Prospectus

Looking for more detail? Download the full prospectus to get a complete breakdown.

Level 4
Domestic Retrofit
Assessment course



Once enrolled you have 6 months
to complete


£1,300 + VAT

or 3 interest-FREE