Level 3 Certificate in Domestic Energy Assessment (CertDEA)

Those wishing to produce Energy Performance Certificates (EPCs) for existing houses will need to gain the Certificate in Domestic Energy Assessment (CertDEA). This will allow you to be accredited as a Domestic Energy Assessor (DEA). All domestic properties require an EPC when sold, rented or let.

EPC's are also required to enable owners to claim the higher rate feed in tariff (FIT), where the EPC achieves a minimum D band rating.

The course includes full training in the RdSAP methodology used to assess existing domestic properties and in the use of government approved software to produce the EPC.

Candidates must also assemble a portfolio of evidence of their competence, including EPCs for five real domestic properties. Each candidate is assigned to an assessor to guide them through this process. The assessor will verify that the candidate's evdience meets the requirements of the National Occupational Standards for a DEA.

Programme Outline

The programme begins with a face-to-face induction course covering the legislative background, an introduction to the RdSAP methodology and details of how to assemble the portfolio of evidence.  This continues with RdSAP training covering the conventions for collecting data and how to enter data into government-approved software. Additionally methods determining the age of a dwelling, recognising the construction and insulation of the main elements and identifying the heating and hot water systems together with the heating controls are covered.

Practical work carrying out assessments and producing EPCs is then completed independently by the candidate.  This usually takes three to five weeks working remotely with guidance from their assessor.

Finally assessment of the evidence portfolio is completed followed by internal and external verification to confirm the required standards have been met.


There are no formal prerequisites for this course.  However, candidates are most likely to be successful if they have:

  • A good working knowledge of mathematics;
  • A good level of literacy with proficiency in the English Language;
  • A sound working knowledge of computers including familiarity with Windows 7 or later, an internet browser and an office package; and
  • Some familiarity with the construction of buildings and building services.

Expected Outcomes

Upon successful completion of this programme candidates will have demonstrated their competency in meeting the requirements of the National Occupational Standards for a Domestic Energy Assessor (DEA).

Price: Please call for information

Our price includes training, ABBE registration, assessment and verification of your evidence portfolio with full professional support to guide you through the process.

Further Information

For details of upcoming course dates and venues visit our course listing - click here.

If you require additional information then please contact our team.

FAQ: Level 3 Certificate in Domestic Energy Assessment (CertDEA)

No, there are no examinations required to complete this programme.

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