1. Contact the Gas Safe Register
If you’re unsure whether a certificate is valid or you suspect it hasn’t been issued:
- Visit the Gas Safe Register.
- Use their “Find/Register a Business” tool to confirm the engineer’s registration.
- You can also call 0800 408 5500 to check whether a specific installation was notified.
Note: Not all safety checks (especially routine landlord checks) are recorded on the Gas Safe Register, but major installations (e.g. new boilers) usually are.
For Tenants
2. Ask the Landlord or Letting Agent
This is often the easiest and most direct method.
Under UK law, landlords must:
- Provide a valid Gas Safety Certificate before you move in.
- Give you a copy within 28 days of any annual inspection.
If your landlord can’t provide one, this could indicate a legal breach.
3. Ask to See the Certificate Itself
A valid certificate will include:
- Name and Gas Safe number of the engineer.
- Inspection date and expiry date.
- Full property address.
- List of appliances checked and test results.
- Signature of the engineer.
Check for a certificate that’s signed, dated, and clearly lists the appliances tested.
What Tenants Should Look For
- Was the certificate provided before move-in?
- Is it less than 12 months old?
- Does it cover all landlord-supplied gas appliances (e.g. boiler, gas hob, fire)?
- Is the engineer Gas Safe registered?
What Buyers Should Look For
- Request the most recent CP12 as part of your due diligence.
- Ask for installation paperwork (e.g. boiler installation certificate).
- Consider requesting a fresh inspection before completing the sale.
Knowing how to check a gas safety certificate is essential for your peace of mind, whether you’re renting, buying, or simply trying to stay safe. Don’t assume a property is compliant just because it “looks fine.” Gas safety issues are often hidden.
If in doubt, contact a Gas Safe engineer to carry out a fresh inspection. It’s a small investment that could prevent a major risk.
Don’t Forget
Use our EPC checker to see how energy efficient your home is, and/or order a new EPC. Knowing your EPC can help you understand what support you might be eligible for under ECO4 or the Great British Insulation Scheme.
People Also Asked
What happens if a landlord doesn't have a gas safety certificate?
Landlords without a valid CP12 are breaking the law and risk prosecution. Consequences can include fines up to £6,000, imprisonment, and restrictions on serving a Section 21 notice. Tenants can also report landlords to the local council or HSE.
How can you check if someone is Gas Safe registered?
You can use the Gas Safe Register’s online tool, “Find an Engineer.” Simply enter the engineer’s name, business, or your postcode to confirm their registration.
Can you sell a house without a gas compliance certificate?
Yes, you can sell a home without a gas safety certificate, as it’s not a legal requirement for property sales. However, landlords who rent without one face fines, legal action, and even jail.
Is a gas safety record a gas certificate?
Yes. The Landlord Gas Safety Record (LGSR), often called a gas safety certificate, confirms that appliances and flues were checked by a qualified Gas Safe engineer and found to be safe.
What makes a gas safety certificate invalid?
Certificates are invalid if they are expired, missing information, or issued by someone not Gas Safe registered. Missing details such as the engineer’s ID, inspection date, or appliance records can also void it.
Can I get a free gas safety check?
Yes, some people may qualify for a free gas safety check. This is usually offered to vulnerable households, such as those with young children, pensioners, disabled people, or anyone receiving certain benefits. Free checks are arranged through local councils, energy suppliers, or by contacting the Gas Safe Register.
How long does a Gas Safety Certificate last?
Certificates last 12 months from the inspection date. A check done between 10 and 12 months after the last one will carry forward the same expiry date, ensuring compliance is continuous.
Who can provide a Gas Safe certificate?
Only a Gas Safe registered engineer can legally issue a certificate. They carry ID cards with their registration number, which can be checked online.
How do I get a duplicate Gas Safe certificate?
You can request a replacement through the Gas Safe Register’s website. A small fee applies, and the duplicate is usually sent by email or post.
Do I need a Gas Safety Certificate if there is no gas?
If a property has no gas appliances but still has a live gas supply, a safety check is required. If the supply is capped or removed, then a certificate is not needed
Useful Resources:
Cost of Living Support Available:
- Household Support Fund (England)
- Cost of Living Payments
- Support for Mortgage Interest (SMI)
- Mortgage Guarantee Scheme
- Council Tax Reduction
ECO4 Support Available:
- Department for Business, Energy & Industrial Strategy – Energy Company Obligation
- Ofgem – Energy Company Obligation (ECO4) Guidance: Delivery V1.1
- Ofgem – Energy Company Obligation (ECO)
- UK Government – Help from your energy supplier: the Energy Company Obligation
- Which? – Energy Company Obligation (ECO)
Other Support Available:
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