Whilst there is no strict legal requirement for PAT testing, the UK Government has put regulations in place for the maintenance of electrical appliances, and the best way to meet these regulations is through PAT testing.

PAT testing, (portable appliance testing) is simply the inspection of different types of equipment to make sure they meet health and safety regulations. What’s crucial about PAT testing is that it often picks up issues that cannot be detected by a visual assessment.

Regular PAT testing ensures that your business stays compliant with the Electricity at Work Regulations 1989 which states that any electrical equipment that could potentially cause industry is maintained in a safe condition.

How can CoMech help?

We offer a PAT testing service and we’re able to provide ‘one-off’ or regular appliance test services across the UK.

past testing

When our engineers PAT test they use visual inspections and electrical tests on all your equipment using specialist PAT testing equipment. These include earth continuity and insulation tests with additional polarity tests for flexible cables.

After PAT testing every appliance will be classed as passed or failed and a sticker will be applied to all equipment that is compliant and has therefore passed the PAT test.

Specialists in calibration

We provide verification, calibration and precision measurement services within our custom-built ISO/IEC 17025 accredited laboratories.


Our Accreditations

If you’ve heard of CoMech it’s probably because our reputation for quality and trust has led us to supplying some of the nation’s biggest brands.


Quality & Trust

Established 1985

Some of the biggest names in the UK transport industry trust CoMech for their solutions, we provide accredited calibrations to many other national brands.


Our Company

Our Sectors

Our work spans various industries and businesses, from SME’s to multi national companies, discover some of our industries.



We’re the leading independent calibration laboratory in the UK, see how our solutions and services can help you.

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