If you let a furnished property or supply any electrical appliances — white goods, electric hobs, kettles, toasters, lamps — you have a legal duty to ensure they are safe and remain safe throughout the tenancy. PAT testing is the industry-standard method for demonstrating that obligation has been met.
For HMO landlords, the expectation is stronger: the HMO Management Regulations 2006 require that all electrical installations and appliances are maintained in a safe working condition. Most local authorities that license HMOs require a valid PAT certificate as part of the licence application.
What is PAT testing?
Portable Appliance Testing (PAT) is a routine inspection of electrical appliances by a qualified person. A PAT test typically involves:
- A visual inspection of the appliance, cable, and plug for obvious damage, fraying, or incorrect fusing
- Earth continuity test — confirms the earth conductor is intact
- Insulation resistance test — confirms the insulation between live conductors and the earth is adequate
- Flash test (for Class I appliances) — applies a high voltage to verify insulation will not break down under fault conditions
- Operation check — confirms the appliance functions correctly after testing
- Labelling — a pass/fail sticker is affixed to each appliance with the test date and engineer's ID
Is PAT testing a legal requirement for landlords?
There is no single law that says 'landlords must PAT test every appliance every year'. The legal obligation comes from multiple overlapping duties:
- Landlords and Tenants Act 1985 (s.11): landlords must keep installations for the supply of gas, water, electricity, and sanitation in repair and proper working order
- Electrical Equipment (Safety) Regulations 2016: electrical equipment supplied in the course of business must be safe
- Electrical Safety Standards in the Private Rented Sector (England) Regulations 2020: requires an EICR every 5 years for fixed wiring — the 2020 Regs do not mandate PAT testing by name but the HSE guidance accompanying them recommends regular portable appliance checks
- HMO Management Regulations 2006: all electrical appliances made available in an HMO must be maintained in safe working order
- Licensing conditions: virtually all local authority HMO licences require current PAT certificates for any appliances supplied
- Tenants' liability: if an appliance causes fire or injury and you cannot demonstrate it was regularly tested, you face civil liability and potentially criminal prosecution under the Health and Safety at Work Act 1974 extension to residential premises
What appliances must be PAT tested?
Any electrical appliance that is plugged into a mains socket and supplied by the landlord should be included. In a typical furnished rental this includes:
- White goods: washing machines, tumble dryers, dishwashers, fridge-freezers, electric cookers and hobs
- Small kitchen appliances: kettles, toasters, microwaves, coffee machines
- Heating and cooling: electric fan heaters, portable air-conditioning units, electric radiators
- Lighting: standard lamps, table lamps, desk lamps
- Entertainment and computing: TVs, set-top boxes, games consoles (if supplied by landlord)
- Power tools and garden equipment: lawnmowers, hedge trimmers (if supplied in the tenancy)
- Extension leads, multi-way adaptors, and surge-protected strips — these are often overlooked but are a significant fire risk
How often should PAT testing be carried out?
Testing frequency depends on the type of property and the risk level of the appliances:
- Standard furnished lets: every 1–2 years is considered good practice by the HSE and most industry guidance
- HMOs: annually — most HMO licensing conditions specify a 12-month PAT certificate
- Student lets: annually before the start of each academic year tenancy
- High-risk appliances (electric heaters, extension leads): every 12 months regardless of property type
- New appliances: new appliances supplied directly from a retailer need not be immediately PAT tested (they come with CE/UKCA marking) but should be included in the next scheduled cycle
- On a change of tenancy: best practice is to conduct a PAT inspection at the start of each new tenancy even if the 12-month cycle has not yet elapsed
Who can carry out PAT testing?
UK law does not require PAT testing to be carried out by a specifically registered electrician, but the tester must be 'competent' — meaning they have the knowledge, skills, and equipment to carry out the tests safely and correctly. Options include:
- Qualified electrician: a registered electrician (NICEIC, NAPIT, or similar) can carry out PAT testing alongside other electrical work
- Specialist PAT testing contractor: many contractors focus exclusively on PAT testing for residential landlords and manage large portfolios efficiently
- In-house testing: larger portfolio landlords sometimes conduct PAT testing in-house if a staff member has obtained a City and Guilds 2377 certificate (PAT testing qualification)
- Keep the engineer's test record, certificate, and copies of the pass/fail labels for your property records — you must produce these to the local authority or a court if required
What happens if an appliance fails a PAT test?
A failed appliance must be immediately removed from use and either repaired or replaced before the next tenancy commences:
- Do not leave a failed appliance in the property — even labelled as 'failed', tenants may continue to use it
- Issue a written record to the tenant noting the appliance has been removed and the date of removal
- If the appliance can be repaired, have a competent person repair and re-test it before returning it to service
- Keep copies of both the fail certificate and the subsequent pass certificate in your property file
- For insurance purposes, a failed and subsequently removed appliance demonstrates that you took action — the paper trail matters
Frequently asked questions
Is PAT testing a legal requirement for landlords in England?+
There is no single law named 'PAT testing regulations for landlords', but landlords have overlapping legal duties under the Landlords and Tenants Act 1985, the Electrical Equipment (Safety) Regulations 2016, and the Electrical Safety Standards in the Private Rented Sector (England) Regulations 2020 that together require all electrical appliances supplied in a rental property to be safe. For HMOs, the HMO Management Regulations 2006 explicitly require appliances to be maintained in safe working order, and local authority HMO licences virtually always require annual PAT certificates.
How often do landlords need to PAT test appliances?+
For furnished standard lets, the HSE recommends PAT testing every 1–2 years. For HMOs and student lets, annually is considered the minimum acceptable frequency, and most HMO licensing conditions specify a 12-month PAT certificate as a licence condition. High-risk appliances such as electric heaters and extension leads should be tested annually regardless of property type.
Do I need PAT testing if I supply a new appliance?+
New appliances from an authorised UK retailer carry CE or UKCA product safety marking and do not need to be PAT tested before first use. However, you should document the purchase (receipt, serial number) and include the appliance in your next scheduled PAT cycle. Once the appliance has been in service for the appropriate interval (typically 12 months for an HMO or high-risk item), it must be included in the next test.
Who is responsible for PAT testing — the landlord or the letting agent?+
The primary legal responsibility sits with the landlord as the property owner. However, if a letting agent has taken on full management duties under a written management agreement, the agent may have contractually assumed responsibility for arranging safety checks. Check your management agreement carefully. If the agreement is silent on PAT testing, the obligation reverts to the landlord.
Does PAT testing cover fixed electrical installations?+
No. Fixed installations (wiring, consumer unit, fixed lighting, sockets, and switches) are covered by the Electrical Installation Condition Report (EICR), which must be carried out every 5 years under the Electrical Safety Standards in the Private Rented Sector (England) Regulations 2020. PAT testing covers portable and moveable appliances that are plugged into sockets. Both EICR and PAT testing form part of a landlord's overall electrical safety obligations.