EICR Certificate can be issued for a property for a maximum of 5 years, However, it depends on the condition of electrical wiring and fixed fixtures, for how long the certificate will be valid, it is completely subjective to the electrician for how long he wants to pass the certificate ranging from 1 to 5 years after assessing the property, if the property electrics are in good condition it is usually issued a certificate for 5 years. However, if any faults or issues are found during these year/s, it is recommended that these are rectified as soon as possible.