Whether you’re a business owner, landlord, or facilities manager, preparing for PAT (Portable Appliance Testing) can help the process run smoothly and ensure your electrical equipment is safe and compliant. But what actually happens during a PAT testing visit? This guide outlines a clear checklist of what to expect on the day.
1. Preparation Before the Tester Arrives
Before your PAT engineer arrives, you can make the process quicker and more efficient:
- Make a list of appliances – Include all plug-in devices such as kettles, microwaves, computers, heaters, and extension leads.
- Clear access – Move furniture or equipment so testers can reach all appliances easily.
- Check documentation – Have previous PAT reports or EICRs (Electrical Installation Condition Reports) available if possible.
- Inform staff or tenants – Let everyone know that testing will be taking place to avoid disruptions.
2. Visual Inspection
A PAT test always begins with a visual check of each appliance. The engineer will look for:
- Damaged plugs or sockets
- Frayed or exposed cables
- Cracks, scorch marks, or other physical damage
- Missing or damaged fuses
- Loose connections
If any appliance fails the visual inspection, it may be removed from use immediately.
3. Electrical Testing
After the visual inspection, the engineer will carry out electrical tests using specialised PAT testing equipment:
- Earth continuity test – Ensures that any electrical fault is safely directed to earth.
- Insulation resistance test – Checks that live wires are properly insulated.
- Polarity test – Confirms correct wiring of plugs and sockets.
- Function test – Ensures the appliance powers on and works correctly.
Appliances that fail any of these tests will be labelled as FAIL, and you’ll receive advice on repair or replacement.
4. Labelling
Once an appliance has passed the tests, the engineer will attach a PAT sticker, showing:
- PASS or FAIL status
- Date of testing
- Next recommended test date
This helps you keep a clear, organised record of all appliances.
5. Record-Keeping and Reporting
A professional PAT testing service will provide a detailed report for your records, including:
- A list of all appliances tested
- Results of visual and electrical tests
- Notes on failed or repaired equipment
- Recommendations for future testing intervals
These records are essential for demonstrating compliance with UK health and safety regulations and for insurance purposes.
6. What You Should Do After Testing
After the PAT testing is complete:
- Review the report – Identify any failed appliances and arrange repairs or replacements.
- Update your schedule – Note when each appliance is next due for testing.
- Store records safely – Keep certificates and reports for at least 5 years.
- Inform staff or tenants – Let them know which appliances are safe to use and any temporary restrictions.
Final Thoughts
PAT testing doesn’t have to be intimidating. By understanding what happens on the day and preparing in advance, you can make the process smooth, efficient, and effective.
Following this checklist ensures that your appliances are safe, compliant, and documented — giving peace of mind to staff, tenants, and property owners alike.