Who Can Perform PAT Testing in Your Workplace?

A PAT label is not evidence of safety on its own. The person carrying out the work must be able to recognise hazards, select appropriate tests and act on the results. So, who can perform PAT testing? In UK workplaces, it can be carried out by a competent person - but competence means far more than owning a tester and printing a pass sticker.

For duty-holders, the practical question is not simply whether someone is allowed to test appliances. It is whether they can demonstrate that the inspection and testing programme is suitable for the premises, the equipment and the risks people face. That matters in an office with chargers and extension leads, a school with regularly handled equipment, a workshop with demanding electrical loads, or a holiday let where guests may use unfamiliar appliances.

Who can perform PAT testing under UK rules?

There is no law stating that PAT testing must be completed by a particular trade, or that every tester must hold one named qualification. The law requires employers, landlords and other duty-holders to maintain electrical equipment where necessary to prevent danger. The Electricity at Work Regulations 1989 place duties on those responsible for electrical systems, while wider health and safety law requires work equipment to be safe for use.

In practice, PAT testing may be undertaken by an in-house employee or an external contractor, provided the person is competent. They need sufficient training, knowledge, experience and access to suitable equipment to carry out the work safely and correctly.

A competent tester should understand the difference between a user check, a formal visual inspection and combined inspection and testing. They should know when an appliance should be removed from service immediately, rather than simply recorded as a fail. They must also understand the limits of test instruments and which tests are appropriate for the item in front of them.

For example, a damaged plug, a crushed cable, an overheated extension lead or a loose socket can often be identified during a careful visual inspection. A tester who overlooks those obvious defects but obtains a satisfactory electrical reading has not completed a meaningful safety check.

Competence is more than a PAT tester

Buying a portable appliance tester does not make someone competent to use it. Modern instruments can run automated sequences, but they cannot decide whether an item is safe in its working environment. Nor can they identify every hazard.

A competent person needs to inspect the appliance, its lead, plug, fuse, adaptor and intended use. They should be able to identify whether an item is Class I or Class II, recognise where an earth continuity test is relevant, and avoid applying unsuitable tests to sensitive electronic equipment. They must know how to deal with equipment that has no earth, has a detachable lead, runs from a low-voltage supply or requires a manufacturer-approved test method.

They also need enough practical judgement to spot risks that a meter will not reveal. These include counterfeit chargers, poorly made lookalike products, recalled appliances, products subject to a safety warning, unsuitable multiway adaptors and equipment being used in a way that creates overheating or fire risk.

This is why a basic pass or fail count is not enough for a responsible organisation. The evidence should show what was inspected, where it is located, its condition, its test outcome, any remedial action needed and when it should be reviewed again.

Is a qualification required for PAT testing?

A qualification is not legally mandatory in every circumstance, but formal training is a sensible and often expected way to establish competence. City & Guilds 2377-77 is a widely recognised qualification for those carrying out in-service inspection and testing of electrical equipment.

Training alone is not the whole answer. Someone may have completed a course but still lack experience with the types of equipment in a care setting, school, retail premises or industrial workshop. Equally, a highly experienced electrical professional must keep their methods, equipment knowledge and understanding of current guidance up to date.

For an organisation appointing a contractor, useful evidence includes relevant qualifications, public liability or indemnity insurance, experience, calibrated or verified test equipment, a clear inspection process and proper documentation. Ask what happens when an item fails. If the answer is merely that it receives a red label, there may be a gap between testing and managing the actual risk.

What in-house staff can safely do

Employees and regular users of equipment have an important role in electrical safety, even where a specialist completes formal PAT testing. They are usually the first people to notice a frayed lead, damaged casing, crackling socket, hot plug, scorch mark or intermittent fault.

User checks are straightforward visual checks before use. They do not involve opening plugs, dismantling appliances or carrying out electrical measurements. Staff should be encouraged to stop using suspect equipment, isolate it where safe to do so and report it promptly.

A trained member of staff may also carry out formal visual inspections and, where appropriate, combined inspection and testing. This can work well in a larger organisation with a controlled asset register, stable equipment types and a person who has received suitable training. However, the duty-holder must give that person enough time, suitable equipment, clear procedures and authority to remove unsafe items from use.

There is a trade-off. In-house testing can offer flexibility and familiarity with the site, but it also requires ongoing training, quality control, equipment checks and reliable record keeping. If the nominated employee leaves, becomes too busy or lacks confidence around unusual equipment, the programme can quickly become inconsistent.

When an external PAT specialist is the safer choice

External testing is often the more practical option for organisations that need independent evidence, have varied equipment, operate across several premises or do not have an appropriately trained member of staff. It is also valuable where staff need to concentrate on their core role rather than manage test records, failures and retest dates.

A thorough specialist should work around your operations wherever possible, inspect items rather than rush from sticker to sticker, and leave you with records that can be used. That means asset labels linked to a register, test certificates, a detailed PDF report and a clear list of failed or advisory items.

The difference becomes especially important when an inspection identifies a higher-risk issue. A recalled white good, a charger showing signs of overheating, an extension lead overloaded beneath a desk or a counterfeit-looking power supply needs practical intervention. The duty-holder needs to know what to remove, repair, replace, monitor or investigate - not just whether the tester produced a numerical result.

Electrotech Services uses qualified engineers and records each tested item in PatGuard3 asset-management software, providing an auditable picture of electrical assets rather than a collection of labels with no supporting detail.

PAT testing is not automatically an annual exercise

Another common misunderstanding is that every appliance must be PAT tested every 12 months. There is no universal annual legal requirement. Inspection and testing frequencies should be based on risk.

A desktop computer in a low-risk office, rarely moved and used by trained staff, may need a different inspection regime from a frequently handled kettle in a shared kitchen, a power tool on a building site or hair equipment used in a care or hospitality setting. Equipment that is moved often, exposed to wear, used by the public or operated in harsher conditions normally requires closer attention.

A good risk-based programme considers the type of appliance, its construction, how often it is moved, who uses it, the environment and its history of faults. It also includes newly purchased equipment where a sensible initial inspection can confirm that the item, plug, lead and instructions are suitable before it enters service.

Records protect the duty-holder, not just the appliance

No one can transfer their legal responsibility simply by hiring a contractor. The duty-holder remains responsible for ensuring the chosen person is competent and that failures are dealt with. Clear records make that responsibility manageable.

Your records should identify the appliance and its location, show the inspection and test date, record results, flag faults and document corrective action. An asset register also helps avoid wasted time retesting equipment that has been disposed of, moved or replaced. During an audit, incident investigation or insurer enquiry, this evidence can demonstrate that electrical safety was actively managed.

Questions to ask before appointing a PAT tester

Before relying on an employee or contractor, establish who will perform the work, what training and experience they hold, and how they will document the outcome. Ask whether the quoted service includes a formal visual inspection, electrical testing where appropriate, asset labels, certificates, a detailed report and a process for failures.

It is also worth asking whether the inspection considers known product recalls, suspect counterfeit items, overheating evidence and unsafe use practices. These are the issues that can turn an apparently ordinary appliance into a real fire or electric-shock hazard.

The right person to perform PAT testing is the person who can identify danger, produce defensible evidence and give you clear action when something is wrong. That standard keeps your people safer, your premises running and your compliance records ready when they are needed.