Gas appliances—like boilers, cookers, and fires—keep our homes warm and functional. But when not maintained properly, they can pose serious risks. That’s where Gas Safety Certificates come in.
Whether you’re a homeowner, landlord, or tenant, it’s important to understand what a Gas Safety Certificate is, who needs one, and what’s involved in getting it.
What Is a Gas Safety Certificate?
A Gas Safety Certificate (also known as a CP12 certificate) is a document issued by a Gas Safe registered engineer after a full safety check of your property’s gas appliances.
It confirms that:
- Appliances are safe and working correctly
- Flues and chimneys are clear
- There are no gas leaks or carbon monoxide risks
Gas Safe Register – What Is a Gas Safety Record?
Who Needs a Gas Safety Certificate?
Landlords (Legal Requirement)
If you rent out a property, UK law requires you to:
- Arrange a gas safety check every 12 months
- Provide a copy of the certificate to your tenant within 28 days
- Keep records for at least 2 years
This applies to:
- Residential landlords
- Housing associations
- Holiday lets (if rented out for more than 28 days/year)
HSE – Landlord Gas Responsibilities
Homeowners (Not Legally Required, but Recommended)
As a homeowner, you’re not legally obliged to have a Gas Safety Certificate—but regular checks are still highly recommended for safety and peace of mind.
It’s especially useful if:
- You’re selling your home and want to reassure buyers
- You’re living in an older property
- You want to maintain your boiler’s warranty
What’s Checked During a Gas Safety Inspection?
A Gas Safe engineer will inspect:
- Gas appliances (e.g., boiler, hob, fire)
- Gas pipework for leaks
- Chimneys and flues
- Ventilation and air supply
- Burner pressure and safety devices
The inspection usually takes 30–60 minutes, depending on how many appliances you have.
What Does the Certificate Include?
Your CP12 certificate should clearly show:
- The engineer’s Gas Safe registration number and ID
- Date of inspection
- Property address
- Details of each appliance checked
- Any safety issues found and recommended actions
- Confirmation that appliances are safe to use
How Much Does It Cost?
Prices typically range from £60 to £100, depending on:
- Your location
- Number of gas appliances
- Whether it’s combined with a boiler service
Some landlords include the check as part of their annual boiler maintenance.
What If You Don’t Get One (As a Landlord)?
Failing to meet gas safety obligations as a landlord can result in:
- Fines of up to £6,000
- Imprisonment
- Invalidated insurance
- Legal issues in the event of a gas-related incident
How to Find a Registered Engineer
Only engineers registered with the Gas Safe Register are legally allowed to carry out gas safety checks.
You can find or verify an engineer here.
Final Thoughts
Whether it’s a legal obligation or simply best practice, a Gas Safety Certificate is a crucial part of keeping your home—or your tenants—safe. If you’re unsure about your gas appliances, don’t wait. Book a check with a registered professional today.
Sources:
GOV.UK – Landlord Gas Safety Responsibilities