One of the most common questions we get asked is how often PAT testing needs to be done. The short answer is that there is no single legal requirement stating a fixed frequency. The longer answer is that the IET Code of Practice for In-Service Inspection and Testing of Electrical Equipment provides clear guidance based on the type of equipment you have and the environment it is used in.
It Depends on Your Environment
A computer sitting on an office desk in a clean, dry environment is at much lower risk than a power tool being used on a construction site. The testing frequency should reflect that difference. As a general guide:
- Offices and shops: every 2 to 4 years
- Hotels and holiday lets: every 1 to 2 years
- Industrial and workshop environments: every 6 to 12 months
- Construction sites: every 3 months
Visual Inspections Matter Too
Formal PAT testing is only part of the picture. Users should be doing basic visual checks of their equipment regularly. Look for frayed cables, cracked plugs, burn marks, or any signs of damage. If something looks wrong, take it out of service until it has been properly tested.
What the Law Actually Says
The Electricity at Work Regulations 1989 require that electrical equipment is maintained in a safe condition. The regulations do not specify how often you need to test, but they do place the responsibility on you to make sure your equipment is safe. PAT testing is the recognised way to demonstrate that you are meeting this duty.
Related Reading
- PAT Testing for Landlords in Derbyshire
- PAT Testing for Cafés and Coffee Shops in Chesterfield
- The Peak District Holiday Let Compliance Guide
- How Often Should Different Businesses PAT Test?
Our Recommendation
If you are unsure about how often to test, get in touch. We will look at your setup and give you honest advice about what frequency makes sense for your situation. There is no point testing more often than you need to, but there is also no point leaving it too long and putting people at risk.
Frequently Asked Questions
Is PAT testing a legal requirement every 12 months?
No. There is no law setting a fixed PAT testing frequency. The Electricity at Work Regulations 1989 require you to keep electrical equipment maintained in a safe condition, and the IET Code of Practice for In-Service Inspection and Testing of Electrical Equipment gives risk-based guidance on suitable intervals for your equipment and environment. Annual testing is common in higher-risk settings, but it is a recommendation rather than a legal deadline.
How often should an office or shop have PAT testing done?
As a general guide, offices and shops in clean, dry, low-risk environments are typically tested every 2 to 4 years. Equipment such as desktop computers and desk lamps sees light handling and low wear, so the risk is lower than in industrial settings. Portable and frequently moved items within the same premises may warrant more regular checks.
What PAT testing frequency applies to holiday lets and hotels?
Hotels and holiday lets are usually recommended for testing every 1 to 2 years. Guest-used appliances such as kettles, toasters, hairdryers and irons are handled by people unfamiliar with the equipment and are moved around frequently, which raises the risk. Regular testing also gives you documented evidence that you have met your duty to keep equipment safe.
How often do power tools on a construction site need PAT testing?
Construction sites are the highest-risk category, with equipment typically tested every 3 months. Industrial and workshop environments generally fall into a 6 to 12 month cycle. Harsh conditions, heavy handling and cable damage all shorten the safe interval between tests.
Do user visual checks count towards PAT testing?
Visual checks by users do not replace formal PAT testing, but they are an important part of keeping equipment safe between tests. Staff and users should look for frayed cables, cracked plugs, burn marks or any other visible damage. If something looks wrong, take the item out of service straight away and have it properly tested before it is used again.