How to tell if your gas engineer is working legally


The Checkatrade guarantee
When you contact a trade through Checkatrade, our guarantee could cover you for up to 12 months. You can claim up to £1,000. Exclusions and T&Cs apply.
The research also identified the factors that make people trust a tradesperson, which are:
- Personal presentation (44%)
- How official they look (43%)
- Body language (25%)
- Personality (22%)
- A friendly face (18%)
Trusting gas engineers without checking they are on the Gas Safe Register could leave you and your family at risk from illegal gas work and dangerous appliances. Unsafe gas appliances can cause gas leaks, fires, explosions and carbon monoxide (CO) poisoning.
Don’t cut corners with gas.
How to make sure you’re using a qualified Gas Safe registered engineer
- Only employ a suitably qualified Gas Safe registered engineer when having gas work carried out in your home. Gas Safe Register is the official register for legally qualified engineers. You can find a registered engineer in your area by visiting the Gas Safe Register website at www.GasSafeRegister.co.uk or by calling on 0800 408 5500.
- Always ask to see your engineer’s Gas Safe ID card. Make sure you check the back of the card, which will state which gas appliances they are qualified to work on.
- If you suspect that someone is an illegal fitter or are worried about gas work carried out in your home, please contact Gas Safe Register.
Follow Gas Safe Register’s top tips to keep you and your family gas safe:
- Know the symptoms of CO poisoning; headaches, nausea, breathlessness, collapse, dizziness and loss of consciousness.
- If you smell gas or think there might be a gas leak, call the free 24-hour national gas emergency number immediately on 0800 111 999.
- Never attempt to work on a gas appliance yourself, always seek the help of a qualified Gas Safe registered engineer who can work on your gas cooker, boiler or fire in a safe way.
- Be aware of the signs of unsafe gas appliances; if the flames on the gas hob are yellow or orange and lazy, rather than being a crisp blue flame; dark staining on/around appliances; pilot lights that frequently blow out; increased condensation inside windows.

The tick you can trust
8/10 homeowners would choose a tradesperson endorsed by Checkatrade over one who isn't*
Claims are sourced from a survey conducted by Deep Blue Thinking on a nationally representative UK sample in November 2021. *8 out of 10 people would choose a trade endorsed by Checkatrade compared to one that isn’t endorsed.
Claims are sourced from a survey conducted by Deep Blue Thinking on a nationally representative UK sample in November 2021. *8 out of 10 people would choose a trade endorsed by Checkatrade compared to one that isn’t endorsed.
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