What Does a PAT Certificate Show for Your Business?

When an insurer, auditor or health and safety colleague asks for proof that portable electrical equipment has been checked, a sticker on each appliance is only part of the answer. What does a PAT certificate show? It provides the supporting record behind those labels: what was tested, where it was tested, whether it passed, and any action needed to keep equipment safe to use.

For a business, school, charity, landlord or healthcare practice, this document turns a routine safety task into a clear, usable record. A well-presented PAT certificate or test report should be easy to read, specific to your premises and useful long after the testing visit has finished.

What a PAT certificate is designed to prove

PAT stands for Portable Appliance Testing. In practice, PAT testing combines a visual inspection with appropriate electrical tests to identify equipment that could present a risk. The certificate is the record of that work.

It does not simply state that a business has had PAT testing completed. It should identify the individual appliances checked and show their test outcome. This matters because workplaces often contain dozens or hundreds of items, from kettles and monitors to extension leads, power tools, chargers and cleaning equipment. A general statement is not enough if someone needs to check the history of a particular item.

The precise layout varies between providers and testing systems, but a professional certificate should give you a complete and traceable picture of the visit. It should also be supported by a detailed appliance report where required.

What does a PAT certificate show in detail?

Your business and testing location

The report should record the name of the organisation, the site address and, where useful, the department, room or area where equipment was found. This helps larger sites keep records organised and makes it easier to locate equipment later.

For organisations with more than one premises, accurate location details are especially useful. A computer monitor tested in a Reading office should not be confused with one at a workshop in Basingstoke simply because both are recorded as “monitor”.

Each appliance tested

Every tested item should have a clear description. This may include the appliance type, make, model, serial number and an individual asset or test ID. The level of detail depends on the equipment, but the key point is traceability.

For example, a good entry might distinguish between “kettle - staff kitchen” and “kettle - meeting room”, or identify a particular extension lead by its asset number. If an item fails or is replaced, you can see exactly which one was affected.

Most PAT testers also apply a label to the appliance. The label usually shows its unique ID, pass or fail status and test date or retest date. The certificate is the fuller office record that corresponds with that label.

The inspection and electrical test results

A PAT certificate should show whether the appliance passed or failed, together with the relevant test results. These may include earth continuity, insulation resistance, polarity and, where appropriate, leakage testing. Class II appliances, which are double insulated, do not require every test used for earthed equipment, so results should be appropriate to the appliance rather than copied into a standard template.

The visual inspection is just as significant. Damaged plugs, loose cables, cracked casings, exposed wiring, signs of overheating and unsuitable extension leads can all cause a fail before an electrical measurement is taken. A clear report may record the reason for failure in plain language, helping you decide what to repair, replace or remove from service.

You do not need to become an electrical specialist to use this information. What matters is that the results are understandable and that any failed item is clearly identified.

Pass and fail totals

Most certificates include a useful overview showing how many items were tested, how many passed and how many failed. This gives the responsible person a quick view of the condition of equipment across the site.

A pass rate is helpful, but the failed-items section deserves the closest attention. One damaged extension lead in a busy office or one faulty charger in a treatment room can be more relevant than an otherwise high pass rate. The record should make those exceptions easy to find.

Dates and retest information

The certificate should show when the testing was carried out. It may also include a suggested retest date. This is useful for planning, budgeting and maintaining a regular testing schedule without letting records lapse.

There is no single legal rule that says every appliance must be PAT tested annually. The appropriate retest interval depends on the type of equipment, how it is used and the environment it is used in. A power tool on a building site faces different risks from a rarely moved desktop monitor in a low-risk office.

A competent tester can recommend a sensible schedule based on those conditions. The certificate provides evidence of the date tested, while your wider electrical safety process should consider inspection frequency, user checks and what happens when new equipment is introduced.

Tester and company details

A reliable certificate should state who carried out the work and include the testing company’s details. This gives the document accountability and makes it straightforward to ask questions about a result later.

For audit and insurance purposes, it is also reassuring to know that testing was completed by a qualified, competent person using suitable test equipment. If your organisation has specific documentation requirements, it is sensible to raise them before the appointment so the report can be prepared in the right format.

What a PAT certificate does not show

A certificate is valuable evidence, but it is not a lifetime guarantee that an appliance will remain safe. Equipment can be damaged after the test date, particularly items that are moved frequently, used outdoors, shared between staff or exposed to heavy use.

It also does not replace everyday care. Staff should still report damaged cables, loose plugs, overheating, burning smells or equipment that works intermittently. Failed equipment should be taken out of use promptly rather than left in a cupboard or returned to a socket after the testing visit.

PAT testing is one part of meeting duties under electrical safety law. Employers, landlords and duty holders are expected to maintain electrical equipment in a safe condition. The right approach depends on risk, not on collecting a certificate for its own sake.

Why clear reporting helps with compliance

The practical benefit of a PAT certificate is that it gives you evidence you can produce without searching through emails or relying on memory. If a client, insurer, landlord, internal auditor or health and safety assessor asks what checks have been completed, you have an organised record available.

It also makes follow-up simpler. A facilities manager can see which items need replacing. An office manager can update the asset list. A school can demonstrate that classroom equipment has been included in its safety arrangements. For landlords, the report helps separate portable appliances supplied with a property from fixed electrical installations, which require different inspection arrangements.

Digital reporting is particularly helpful because it can be stored with other health and safety records, shared internally and retrieved when renewal planning starts. Paper certificates can still be useful, but the information matters more than the format.

What to check when you receive your certificate

Before filing the report away, take a few minutes to check that the organisation name and site details are correct, the number of appliances tested looks reasonable, and failed items are clearly marked. Make sure any equipment removed from use has been dealt with and that the person responsible for safety records knows where the certificate is held.

It is also worth checking for obvious omissions. A testing visit only covers the equipment made available and accessible at the time. Items locked in drawers, taken home by staff, temporarily off site or introduced after the visit may need to be added to your process separately.

If the results contain technical terms you do not recognise, ask for an explanation. Good PAT testing should reduce the administrative burden, not leave you trying to interpret a spreadsheet on your own.

For organisations across Basingstoke, Farnborough, Reading and the surrounding area, a clear certificate and jargon-free appliance report can make electrical safety records much easier to manage. The useful next step is not merely to store the document, but to act on any failures and set a realistic reminder for the next review.