RdSAP Workflow Practice
Questions follow the preparation, inspection, evidence, input, and EPC explanation workflow.
- Pre-visit checks
- On-site measurement judgement
- Heating and fabric evidence
- Recommendation logic
Domestic Energy Assessor
RetrofitReady: DEA
For learners preparing to assess existing homes, record RdSAP evidence, and produce accurate EPC recommendations through an approved scheme.
360
Questions in the app
8
Syllabus topics
Multi
Answer formats
Profession
What a Domestic Energy Assessor does
A Domestic Energy Assessor visits existing homes to collect the data needed for an Energy Performance Certificate. The assessor records the age, dimensions, construction, heating and hot-water systems, insulation evidence, glazing, lighting, and other property details used by approved EPC software.
The role is both technical and procedural. DEAs need to inspect safely, record assumptions and limitations, follow current RdSAP conventions, explain ratings and recommendations clearly, and lodge the certificate through an approved accreditation scheme so the EPC is valid on the register.
Certification and testing
How DEAs are normally certified and tested
The standard route is a Level 3 Certificate in Domestic Energy Assessment, followed by membership of an approved accreditation scheme. GOV.UK and careers guidance both emphasise that assessors must be accredited for certificates to be valid.
Testing normally includes knowledge assessment plus practical portfolio evidence. Candidates demonstrate safe inspection, accurate property measurement, correct use of conventions, suitable photographic and documentary evidence, and the ability to explain an EPC and recommendation report to a client.
✓
Safe, professional assessment visits and client communication
✓
Preparation, evidence collection, measurements, and property-data judgement
✓
RdSAP conventions, approved software inputs, and EPC lodgement process
✓
Explaining ratings, recommendations, limitations, and scheme requirements
App features
Built around the way this profession is assessed.
DEA Portfolio Thinking
The app reinforces the practical evidence habits needed for assessment and accreditation.
- Safe-access decisions
- Photo and document evidence
- Unavailable-data handling
- Professional communication
Focused Supplement Units
Supplement topics give extra practice on the units learners often revisit close to assessment.
- Safe practice supplement
- Preparation supplement
- Assessment supplement
- EPC explanation supplement
Study workflow
From evidence to exam confidence.
Use the web quiz for free samples, then continue in the app for the full topic bank and repeated practice.
- Step 1
Prepare for the visit
- Step 2
Collect and verify property evidence
- Step 3
Enter data into approved software
- Step 4
Explain and lodge the EPC
Topics
DEA topic map
Open the free quiz for a topic or jump to the one-page study guide for deeper descriptions.
Conduct Energy Assessments in a Safe, Effective and Professional Manner
This topic covers the professional conduct expected during EPC work: safety, identification, communication, scope, limitations, and scheme responsibilities.
Prepare for Energy Assessments of Domestic Property
Preparation is about confirming the property, arranging access, knowing what evidence to request, and planning the visit so data collection is efficient and defensible.
Undertake Energy Assessments
This is the core visit workflow: measuring, identifying construction and services, recording evidence, and applying conventions consistently.
Produce and Explain Energy Performance Certificates
Producing and explaining an EPC requires accurate software inputs, register lodgement, and clear explanation of ratings, recommendations, and limitations.
Conduct Energy Assessments Safely and Professionally — Supplement
The supplement reinforces safety and conduct scenarios that often decide whether an assessment is valid, defensible, and acceptable to the client.
Prepare for Energy Assessments — Supplement
This supplement revisits preparation decisions, especially when property type, access, documentation, or client information changes the visit plan.
Undertake Energy Assessments — Supplement
The undertaking supplement gives extra practice on difficult data collection: extensions, rooms in roof, conservatories, heating controls, and hidden insulation.
Produce and Explain EPCs — Supplement
The EPC supplement focuses on final checks, recommendation logic, client explanation, and the distinction between data evidence and software output.
Official context
These external references are useful background while preparing for the qualification route. Always follow your awarding body, training provider, and scheme requirements for assessment evidence.