PRACTICAL GUIDE · UPDATED 2026-10-30

How to check a gas engineer's ID and work categories

Check the individual who arrives, then make sure their current qualifications cover your appliance and fuel.

Before gas work starts, ask to see the attending engineer's Gas Safe Register ID card. Check the photograph against the person at the door, the licence number and the card's validity dates. A company's registration does not by itself identify the individual doing the work.

Use the official Gas Safe Register website to check the engineer with the licence number from their card. HSE explains that this check shows the engineer's photograph and qualification details. Open the official register yourself, rather than relying only on a screenshot or a badge in an advert.

Read the work categories on the back of the card and compare them with the online details. Qualifications must be current and suitable for your actual job: boiler, cooker and gas fire work are different categories. Check the fuel too; if your home uses LPG, ask the engineer to show the relevant LPG qualification for the appliance.

If the details do not match, or you cannot establish that the person is qualified for the work, pause the job and contact Gas Safe Register for clarification. Registration is an essential gas safety check; discuss the job scope, experience, insurance and price separately.

Your checklist

Match the person to the photograph on their card.
Check the licence number and validity dates.
Verify the individual through the official Gas Safe Register.
Confirm current appliance categories and the correct fuel, including LPG where relevant.
Resolve any mismatch before allowing gas work to start.

Sources & further reading

General information, not a property assessment, booking or assurance about a listed business. Dates indicate content updates; they are not invented publication dates.

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