Electrical
The IEE Wiring Regulations (BS 7671) require that Periodic Inspection and Testing of electrical installations is carried out at such intervals as are consistent with the type of installation, its use and operation, the frequency of maintenance, and the external influences upon it.

Private domestic dwellings should be inspected at either change of occupancy or every ten years and let properties should be inspected every 3-5 years.

On completion of the Inspection and Test a report will be provided, detailing the condition of the installation, results of all tests carried out, a list of any faults, and recommendations and a conclusion as to relative safety of the installation.