COST GUIDES
Gas safety certificate: Cost breakdown 2026
Updated 06/26
Gas safety certificate cost:
The average cost of a gas safety certificate in the UK ranges from £60–£90
Average cost:
The average UK cost for a gas safety certificate (or CP12) is around £80
Additional appliances:
Additional gas appliances are typically charged at around £10–£15 each
Compliance & regulations:
Landlords must arrange an inspection by a Gas Safe registered engineer every 12 months and provide tenants with a copy of the certificate within 28 days of it taking place.
A gas safety certificate (also known as a CP12) confirms that the gas appliances, pipework and flues in a property have been inspected by a registered Gas Safe engineer and found safe to use.
In the UK, most gas safety certificates cost between £60 and £90, although the final price can vary depending on the size of your property and the number of gas appliances that need checking.
Whether you're a landlord arranging a legally required inspection or a homeowner looking for peace of mind, this guide explains how much a gas safety certificate costs, what affects the price and what you can expect from the inspection.
What is a gas safety certificate?
A gas safety certificate, officially known as a Gas Safety Record and commonly referred to as a CP12 certificate, is a document issued by a registered Gas Safe engineer following an inspection of the gas appliances, pipework, flues and fittings within a property.
The inspection confirms whether the gas installations meet current safety standards and identifies any faults that require attention.
Gas safety certificates for landlords
Landlords in the UK must arrange a gas safety check every 12 months and provide tenants with a copy of the gas safety certificate (CP12) within 28 days of the inspection.
Do homeowners need a gas safety certificate?
Homeowners are not legally required to have a gas safety certificate. However, many choose to arrange a gas safety check periodically to confirm their boiler and gas appliances are operating safely.
How much does a UK gas safety certificate cost in 2026?
The average cost of a gas safety certificate in the UK ranges between £60 and £90, with an average UK cost of around £80.
| Cost provided item | Unit | Cost +VAT (Range Low) | Cost +VAT (Range High) | Average UK Cost |
|---|---|---|---|---|
| Gas Safety Certificate | Fixed price | £60 | £90 | £80 |
| Last updated: June 2026 Our costs are ballpark averages - get a local tradesperson to quote now | ||||
A typical inspection covers a property with one boiler and one additional gas appliance, such as a gas hob or gas fire.
If you have several gas appliances to check, many engineers charge around £10–£15 per additional appliance. Prices can also be slightly higher in London and the South East.
Get a quote for a gas safety certificate
Whether you're renewing an existing certificate or arranging your first inspection, it's worth comparing quotes from a selection of Gas Safe engineers.
A professional can confirm what's included, explain any additional charges and answer any questions about your property's gas safety requirements.
Find checked Gas Safe engineers working in your area and request a quote today.
Hire a Gas Safe registered engineer in your area
Gas safety certificate costs at a glance
If you're looking for a quick overview, here's what most UK homeowners can expect to pay:
Gas safety certificate: £60–£90
Average UK cost: £80
Additional gas appliances: around £10–£15 each
Inspection frequency (landlords): every 12 months
Tenant copy required (landlords): within 28 days
What affects the cost of a CP12 certificate?
Although the inspection itself is fairly standard, a few factors can influence the final price.
Number of appliances
The number of gas appliances being inspected is usually the biggest factor affecting cost.
It's worth noting that, as a landlord, you're not responsible for gas appliances owned by tenants, but you are responsible for the gas pipework supplying those appliances.
For this reason, many landlords choose to have all gas appliances checked during the visit for added peace of mind.
Your location
Gas Safe engineers set their own rates, which means prices can vary around the country.
As with many trades, costs are generally higher in London and the South East than other parts of the UK.
Combining a boiler service with your gas safety check
Many people arrange their annual boiler service at the same time as the gas safety inspection.
It can be a convenient way to reduce disruption and avoid arranging multiple appointments throughout the year.
If you're considering this option, take a look at our boiler service cost guide to help with budgeting.
Are you a landlord? Make sure your rental property is ready for your next tenants, safe and compliant with the help of our checked and qualified tradespeople. Whether you need an electrical safety check, an end of tenancy clean, or a bit of maintenance, search for trusted services in your area with Checkatrade.
Additional gas safety costs to consider
The gas safety certificate itself is often only one part of maintaining a safe property.
Whether you're a landlord or homeowner, there may be other checks and maintenance costs worth budgeting for, such as:
Remedial work if faults are identified
Getting a carbon monoxide alarm fitted where required
Many property owners choose to arrange several of these checks together to save time and reduce the number of separate appointments needed throughout the year.
What's included in a gas safety certificate inspection?
Although inspections vary slightly between properties, a Gas Safe engineer will typically:
Inspect the gas appliances included within the inspection
Check visible gas pipework
Inspect flues and ventilation
Test appliance operation and safety controls
Identify any faults or safety concerns
Issue a gas safety certificate (CP12) if the property meets safety requirements
If any issues are found, the engineer will explain what needs to be repaired before the installation can be considered safe.
On Checkatrade, you'll only find trades who meet our high standards and pass up to 12 checks.
How long does a gas safety check take?
A standard gas safety check typically takes around 30–60 minutes for a property with a boiler and one or two additional gas appliances.
Larger properties with more appliances may take longer.
To help the visit run smoothly, make sure the engineer has access to all gas appliances, the gas meter and the boiler before they arrive.
Many people book their next inspection before the engineer leaves. It sounds simple, but it can help avoid last-minute scrambles when renewal dates come around again, especially if you're a landlord.
Can you get a gas safety certificate yourself?
No. You can't get a gas safety certificate by carrying out the inspection yourself.
A CP12 certificate can only be issued by a registered Gas Safe engineer following a formal inspection of your property's gas appliances and installations.
If you're a new landlord and don't yet have a trusted engineer, comparing reviews and checking Gas Safe registration details is a sensible place to start.
Gas safety certificate UK checklist
When should you speak to a Gas Safe engineer?
If your current certificate is approaching expiry, don't leave it until the last minute.
It's also worth speaking to a Gas Safe engineer if you've recently bought a rental property, installed a new gas appliance or haven't had your gas system inspected for some time.
For homeowners, a gas safety check can provide reassurance that your boiler and gas appliances are operating safely, even though a certificate isn't legally required.
It's easy for renewal dates to creep up, so it's worth keeping track of when your next gas safety check is due. By law, landlords must arrange a gas safety inspection every 12 months and provide tenants with a copy of the CP12 certificate within 28 days of it being issued.
Find a Gas Safe engineer near you
Gas safety inspections are one of those jobs that are easy to forget about until the renewal date is looming.
Whether you're a landlord staying compliant or a homeowner looking for peace of mind, a qualified Gas Safe engineer can help ensure your property's gas installations are safe and operating correctly.
Compare quotes for a gas safety certificate in your area and find the right professional for the job.
Browse checked Gas Safe engineers working in your area
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Gas safety certificate: FAQs
Do I need a gas safety certificate in the UK?
All UK landlords are legally required to have a registered Gas Safe engineer inspect their gas appliances, pipework and flues every 12 months. Homeowners are not legally required to have a gas safety certificate, but many people choose to arrange a gas safety check periodically for peace of mind.
Do homeowners need a gas safety certificate?
Homeowners are not legally required to have a gas safety certificate. However, many arrange a gas safety check voluntarily to confirm their boiler and gas appliances are operating safely.
Do I need a gas safety certificate to sell my home?
You don't need a gas safety certificate when selling a property. However, landlords selling a rental property should retain records showing annual gas safety inspections have been carried out.
How can I get a gas safety certificate?
Book an inspection with a registered Gas Safe engineer who works in your area. Once the inspection has been completed and the appliances are deemed safe, the engineer will issue the certificate.
Which appliances need to be checked?
A Gas Safe engineer will inspect any gas appliances included in the inspection, such as boilers, gas hobs, cookers and gas fires. They'll also check associated pipework, flues and fittings to make sure they're operating safely. For landlords, this normally includes all gas appliances provided as part of the tenancy.
How often do I legally need a gas safety certificate?
Landlords must arrange a gas safety inspection every 12 months. A new inspection can be carried out up to two months before the current certificate expires while retaining the original renewal date.
How long does a gas safety check take?
Most inspections take between 30 and 60 minutes, depending on the number of appliances to be checked and the size of the property.
Can a landlord be fined for not having a gas safety certificate?
Yes. Failing to comply with gas safety legislation can result in significant penalties and legal consequences for landlords, which is why annual inspections are so important.
What's the difference between a gas safety certificate and a boiler service?
A gas safety certificate confirms that gas appliances are safe to use. A boiler service focuses specifically on maintaining the boiler and helping it operate efficiently. Many landlords arrange both at the same time.
Gas safety certificate: Key takeaways
Most gas safety certificates cost between £60 and £90
The average UK cost is around £80
Additional gas appliances are often charged at around £10–£15 each
Landlords must arrange an inspection every 12 months and provide a copy to the tenant within 28 days
Homeowners are not legally required to have a gas safety certificate, but many choose to arrange a safety check for reassurance
Only a registered Gas Safe engineer can issue a CP12 certificate
Hire a Gas Safe registered engineer in your area
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