Insulation records
Have installation certificates or other reliable evidence available for insulation that cannot be seen. Tell the assessor where improvements have been made and provide the supporting records you have.
Heating and hot water
Make the boiler, heating controls and hot water equipment accessible where safe. Product labels and installation information can help identify the system accurately.
Extensions and alterations
Share available records for extensions, conversions and relevant building changes. Different parts of a home may have different construction features.
Keep expectations realistic
An assessment records property features using the applicable methodology. A rating describes assessed performance; actual bills also depend on occupancy, weather, energy prices and how the home is used.
This is general guidance about assessment preparation. For advice about your own property, discuss your requirements with the relevant professional.