Gas Safety & Certification

Gas Safety Check

A gas safety check is a structured inspection and set of tests on your gas appliances and pipework to confirm they are operating safely and in line with current regulations. It helps identify issues such as unsafe combustion, leaks, poor ventilation, or flue problems before they become a serious risk, and provides clear written results for your records.

More information

What a gas safety check covers

A gas safety check focuses on safety, compliance, and reliable operation. Depending on your property and appliances, it typically includes:

  • Visual inspection of gas appliances (for example boiler, hob, fire) and accessible pipework
  • Checks of flues, ventilation and safe appliance location
  • Tightness testing to assess the integrity of the gas installation
  • Operational checks to confirm appliances light, burn and shut down safely
  • Measurement of key safety readings where applicable
  • Clear documentation of findings, any defects, and next steps
  • Landlord gas safety record (CP12) where the check is for a rental property

When this service is most useful

This service is a good fit if you:

  • Are a landlord and need an annual gas safety record
  • Are buying or moving into a property and want reassurance about gas safety
  • Have had an appliance changed, altered, or disconnected and reconnected
  • Have concerns such as unusual smells, sooting, staining around an appliance, or pilot issues
  • Manage a small commercial premises and need documented safety checks

What happens during the visit

The engineer will confirm which appliances are included, then carry out a combination of visual checks and regulated tests. You will be told what has been checked, what the results mean, and whether any action is needed. If access is limited, you will be advised what would be required to complete the check properly.

After the check

You will receive clear results and, where applicable, the correct certification for your records. If any faults are found, you will be advised on urgency and safety, and what remedial work is needed to bring the installation up to standard. If an appliance is unsafe, it may need to be isolated or made safe in line with Gas Safe requirements.

Frequently Asked Questions

Is a gas safety check a legal requirement for landlords?
Yes. Landlords must have a gas safety check carried out every 12 months by a Gas Safe registered engineer and provide tenants with a copy of the record. The check covers relevant gas appliances and flues in the property.
What appliances can be included in a gas safety check?
Common appliances include gas boilers, hobs, ovens and gas fires, plus accessible pipework and relevant flues. The exact scope depends on what is installed and what can be safely accessed for testing.
How long does a gas safety check take?
Timing depends on the number of appliances and the installation layout. A single-appliance check is usually quicker than a full property check with multiple appliances. You will be advised if access or faults are likely to add time.
What happens if an appliance fails the gas safety check?
You will be told clearly what the issue is and how serious it is. If something is unsafe, it may need to be turned off or made safe immediately in line with regulations. You can then arrange repairs and a re-check if needed.
Do I need a gas safety check if I already have my boiler serviced?
A boiler service and a gas safety check are not always the same, although they can overlap. A landlord check is a specific legal inspection with a formal record. Homeowners often choose a safety check for reassurance, especially when moving home or after changes to appliances.

Related Services

Complete your experience with these services

  • Landlord Gas Safety Certificate (CP12)
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  • Gas Tightness Test
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  • Gas Safety Check for Landlords
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  • Gas Safety Check for Homeowners
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  • Gas Safety Advisory Visit
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  • Gas Pipework Inspection
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  • Gas Leak Investigation
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  • Gas Appliance Safety Inspection
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  • Gas Appliance Disconnection
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  • Gas Appliance Commissioning
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  • Carbon Monoxide Investigation
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