A valid Building Energy Rating (BER) certificate is generally needed before advertising a home for sale in Ireland, subject to limited exemptions. You can find an independent SEAI-registered BER assessor through the official SEAI register and ask for a quote based on your property. The assessment usually involves an inspection of the house and its heating, insulation, windows and ventilation, with the certificate then uploaded to the SEAI register. Costs and appointment times vary, and the final BER rating is determined by the assessor based on the property’s details.