In short: HMO electrics must be inspected and tested at least every 5 years in England, Wales and Scotland, and HMO licences in Northern Ireland require the same. In England, remedial work must be done within 28 days or sooner if the report says so.
The rules by nation
- England: inspection at least every 5 years; reports to tenants within 28 days and to the council within 7 days of a request; remedials within 28 days.
- Wales: inspection at least every 5 years; report to the contract-holder within 14 days.
- Scotland: EICR before the first let and at least every 5 years; C1 and C2 items fixed; PAT testing of supplied appliances; RCD protection.
- Northern Ireland: HMO licence conditions require a satisfactory EICR at least every 5 years.
Arc fault detection
BS 7671, the wiring standard, calls for arc fault detection devices in HMOs on new socket circuits, so rewires and consumer unit replacements in HMOs normally include them.
Remedials or a rewire?
Where an EICR lists many defects, old cable or an old fuse board, a rewire during a void can cost less over time than repeated remedials.
Questions
What do C1, C2 and FI mean?
C1: danger present; C2: potentially dangerous; FI: further investigation needed. All need action within the deadline.
How much does an EICR cost?
Typically £150–£400 for a 5+ bedroom house, depending on region and size.
Who can carry out remedial work?
A qualified electrician, who should confirm completion in writing.
Checked 31 October 2026. General information for landlords planning works, not legal advice. Check the council’s pages for the exact address.