If you own or manage electrical appliances, you’ve probably heard about PAT testing—the process of checking portable appliances to make sure they’re safe to use. But one of the most common questions is: “How often should PAT testing be carried out?”
The answer isn’t the same for everyone. It depends on the type of equipment, how often it’s used, and the environment it’s used in. Let’s break it down.
What the Law Says
UK regulations such as the Electricity at Work Regulations 1989 require employers, landlords, and duty holders to keep electrical equipment safe.
However, the law does not set specific timeframes for PAT testing. Instead, it requires that equipment is inspected and maintained “as often as necessary.”
This means the frequency of testing depends on risk assessment.
General Guidance on PAT Testing Frequency
While there’s no one-size-fits-all rule, here are some widely accepted guidelines:
1. Offices, Shops, and Low-Risk Environments
- IT equipment (computers, monitors, printers): every 2–4 years
- Portable appliances (kettles, fans, lamps): every 2 years
- Extension leads: every 2 years
2. Schools, Colleges, and Educational Settings
- Equipment handled by children or used daily: every year
- IT equipment: every 2–4 years
- Kitchen appliances in staff or student areas: every year
3. Construction Sites and Industrial Environments
- Tools and equipment exposed to heavy use: every 3 months
- Extension leads and portable cables: every 3 months
4. Hotels, Hospitality, and Rental Properties
- Appliances used by guests (kettles, hairdryers, lamps): every year
- Landlords supplying appliances: recommended annually
5. Healthcare Settings
- Medical and patient-use equipment: follow strict local guidelines (often annually or more frequently).
Factors That Affect Frequency
PAT testing schedules should always consider:
- Type of appliance – High-powered or frequently moved items carry more risk.
- Environment – Construction sites and kitchens pose higher risks than offices.
- User – Equipment used by the public or children should be tested more often.
- Previous history – If faults have been found before, more frequent checks may be needed.
Best Practice Approach
The safest way forward is to:
- Carry out a risk assessment.
- Establish a PAT testing schedule tailored to your workplace.
- Keep records of all inspections and tests.
- Combine PAT testing with regular visual checks by staff.
Final Thoughts
So, how often should PAT testing be carried out?
There’s no fixed rule—but the key is to test appliances as often as necessary to keep them safe. For most businesses, that means every 1–2 years, while higher-risk environments may need more frequent checks.
Ultimately, PAT testing isn’t just about compliance—it’s about protecting people, preventing accidents, and giving peace of mind.
Regular testing is a small investment in safety with big benefits.