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What does the domestic energy assessment involve?

The Energy Performance Certificate (EPC) is based upon an assessment of the property carried out by a licensed Domestic Energy Assessor (DEA).

The domestic energy assessment involves:

  • Establishing the age and construction method of the property.
  • Measuring floor and wall areas of the property.
  • Looking at heating systems including the boiler, heat emmitters and controls.
  • Identifying existing cavity wall and loft insulation.
  • Identifying any alternative heating (e.g. solar) and energy-efficient products (e.g. energy saving light bulbs).

HIP-Consultant.co.uk will collect specific data on the property as outlined by the Government (RdSAP methodology). This data is then used to produce the Energy Performance Certificate (EPC).

The specific information collected by the domestic energy assessor (DEA) includes:

Heating efficiency

HIP-Consultant.co.uk's domestic energy assessor (DEA) will evaluate the boiler or the main heating system:

  • The manufacturer of the boiler.
  • The model if the boiler has a brand name.
  • The type of boiler you have, i.e. whether it is combi, condensing, non-condensing or a back boiler.

We will also look at the heating controls within the system for e.g. the thermostat, timer and radiator valves. This enable us to evaluate the energy efficiency of the combined heating system.

Insulation efficiency


The domestic energy assessor (DEA) will evaluate the types of insulation installed in your property. Existing insulation is measured and compared
against current standards:
  • Loft insulation - The average depth of loft insulation is measured.
  • Cavity wall insulation - The existing cavity wall is examined externally, either visually or by looking inside the cavity to
    determine whether insulation is present.
  • Double glazing - The doors and windows will be checked for double glazing.

HIP-Consultant.co.uk's domestic energy assessor (DEA) will all at all times respect your home and answer any questions you may have during the assessment.

Contact HIP-Consultant.co.uk now to discuss your specific queries and/or requirements.

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