If you’re a landlord in the UK, understanding the gas safety certificate cost and the legal responsibilities around it is crucial. This guide covers everything you need to know about CP12 certificates, what they include, who can issue them, and how much they typically cost — helping you stay compliant and avoid penalties.
What Is a Gas Safety Certificate (CP12)?
A Gas Safety Certificate, also known as a CP12 certificate, is an official document that proves all gas appliances, flues, and pipework in a rental property are safe. It must be issued by a Gas Safe registered engineer following an annual gas safety check.
This certificate is legally required for all rental properties in the UK. Landlords must provide it to tenants within 28 days of the inspection or before new tenants move in.
Gas Safety Certificate Cost in the UK
So, how much does a gas safety certificate cost? The typical price ranges from £50 to £150, depending on:
The number of gas appliances (boiler, oven, gas fire, etc.)
The property’s location (London prices tend to be higher)
Timing of the visit (emergency callouts can cost more)
If repairs or servicing are needed before the certificate is issued
💡 Tip: Many landlords choose gas safety packages that include servicing along with the CP12 certificate to save money in the long run.
Who Can Issue a Gas Safety Certificate?
Only engineers registered with the Gas Safe Register can issue a valid landlord gas safety certificate. Always check their ID card, which must include:
Photo and license number
Qualification details
Appliance types they’re certified to inspect
What Does a CP12 Certificate Include?
A valid CP12 gas safety record typically includes:
Property and landlord details
Date of inspection
List of all appliances checked (boiler, gas cooker, etc.)
Safety test results
Any defects or recommendations
Engineer’s name, registration number, and signature
How to Get a Gas Safety Certificate
Here’s the step-by-step process:
Book a gas safety check with a local Gas Safe registered engineer.
The engineer will inspect all appliances, flues, and pipework.
If everything is safe, they’ll issue the CP12 certificate.
You must give a copy to your tenant within 28 days and keep your own record.
If any faults are found, the engineer may shut down the appliance until it is repaired.
Why Gas Safety Checks Matter
Prevent CO poisoning: Faulty appliances can leak carbon monoxide, a silent killer.
Avoid fires or explosions: Engineers check for gas leaks and ventilation problems.
Protect tenants and property: Regular checks show duty of care and improve appliance longevity.
Stay insured: Some landlord insurance policies require a valid gas safety certificate.
Gas Safety Certificate Legal Requirements in the UK
Under the Gas Safety (Installation and Use) Regulations 1998, landlords must:
Have annual gas safety checks done by a Gas Safe engineer
Retain records for at least 2 years
Provide the certificate to tenants promptly
Non-compliance can lead to fines, imprisonment, and invalid insurance claims.
Gas Safety Certificate for Commercial Properties
Commercial landlords have similar responsibilities but may require specialised certificates and assessments due to more complex gas systems and equipment.
Digital CP12 Certificates
Many engineers now offer digital gas safety certificates, which are easier to manage, store, and share with tenants or property managers.
CP12 vs Boiler Service
A gas safety check ensures appliances are safe to use. A boiler service goes deeper, inspecting internal components for wear and efficiency. For cost-effectiveness, landlords often combine both services in one visit.
Tips to Reduce Gas Safety Certificate Cost
Book early to avoid last-minute premiums
Bundle services (e.g., EPC, electrical checks) with your gas inspection
Use reminders to stay compliant every year
Compare local engineers for the best rates
🔍 Final Thoughts on Gas Safety Certificate Cost
Keeping your tenants safe and meeting your legal obligations doesn’t have to be expensive. By understanding what affects the gas safety certificate cost and planning ahead, landlords can stay compliant, save on repairs, and avoid legal trouble.
Looking for a trusted engineer near you? Search the Gas Safe Register to find a qualified gas engineer near me and book your CP12 certificate today.