Things to know

To prepare the Energy Performance Certificate it is necessary to obtain detailed information about the property. A qualified and accredited Energy Assessor will need to inspect the property in order to assess the factors that influence the energy rating. This inspection is visual, nothing is removed or drilled to make observations. It is a requirement in the 'Code of Practice' that governs these assessments that no intrusive examinations are made that could damage the building fabric in any way, for example the assessor is not allowed to remove a boiler inspection cover. Depending upon the size of the property the inspection will take about 1 to 1.5 hours, typically it will include the following:

  • Visual inspection of the inside and outside of the property.
  • External measurements of the property (internal measurements will be taken if the inspector has reduced access to the perimeter of the property).
  • Examination of the loft space and any existing loft insulation. The assessor will provide a ladder for access.
  • Inspection of the space and water heating systems and associated controls.
  • Assessment of the basement or cellar if one is present.
  • Inspection of electricity and gas meters, bottled gas, fuel or oil supplies.
  • Check the type lighting used within the home.
  • Examination of all the windows in each room.
  • Determination of wall thicknesses at the reveals by opening windows or doors in most rooms.
  • Tapping of walls in most rooms to help determine the type of wall construction.
  • Recording of any other energy related features such as solar panels, photovoltaic panels or renewable energy resources used in the home.

If you arrange an inspection please leave clear access to the areas indicated above, remember that the assessor must not move furniture or personal items during the inspection. If the assessor has to limit the inspection in any way because of obstructions, this might have a detrimental effect on the energy rating the property achieves.


Please also note the following: 

  • Our assessors will always introduce themselves and present their identity card on arrival. If you have any doubts regarding the authenticity of the assessor, please do not allow them to enter the property. Instead, give us a call and we will be able to confirm the assessor's identity.
  • If you will not be present for the inspection, please be mindful that the inspection cannot take place if there are juveniles under the age of 16 in sole charge of the property.
  • The assessor will not enter a property where dogs or other animals, that could pose a hazard, are unaccompanied or unrestrained.
  • We must be notified of any known, potential health & safety hazards to the assessor prior to arrival.
  • It is important that the assessor is allowed to carry out the inspection in their own time and without distraction to ensure none of the data vital to the production of the certificate is missed and that mistakes are not made.
  • Missed appointments or return visits for any reason will attract a fee of 50% of the inspection cost.
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