If you are a landlord with a rental property that has gas appliances or gas flues, gas safety should be one of your regular property-management priorities.
You may have heard people use terms such as CP12, Gas Safety Certificate and Landlord Gas Safety Record (LGSR).
But what exactly is a CP12?
How often does a landlord need a gas safety check?
What does the check cover?
And is a boiler service the same thing as a CP12?
This guide answers the most common questions landlords and property managers ask about gas safety certificates.
What Is a CP12 Gas Safety Certificate?
CP12 is a commonly used term for the Landlord Gas Safety Record produced following a landlord gas safety check.
The required gas safety check must be carried out by a suitably qualified Gas Safe registered engineer.
The record provides information about the gas appliances and flues checked and records relevant safety findings.
For landlords, the purpose is not simply to obtain a piece of paperwork. The gas safety check forms part of the legal gas-safety responsibilities associated with relevant rental properties.
How Often Does a Landlord Need a Gas Safety Certificate?
For properties covered by the landlord gas safety regulations, landlords must arrange the required gas safety check every 12 months.
There is also flexibility around when the check can be carried out. HSE guidance explains that landlords can generally arrange the next check within the two-month period before the current check’s deadline without changing the original deadline date.
This can make it easier for landlords and property managers to organise annual checks without unnecessarily shortening the yearly cycle.
Who Can Carry Out a CP12 Gas Safety Check?
A landlord gas safety check must be carried out by a Gas Safe registered engineer who is competent for the relevant gas work.
This is extremely important.
Landlords should not choose an engineer based solely on price. Gas work is safety-critical, so the engineer needs to have the appropriate qualifications and competence for the appliances and work involved.
HSE guidance specifically advises landlords to use appropriately qualified Gas Safe registered engineers.
What Does a Landlord Gas Safety Check Cover?
The gas safety check covers the relevant gas appliances and flues for which the landlord has responsibility.
Depending on the property, this can include gas boilers, gas fires and other relevant appliances or flues.
The gas safety record contains important information such as:
- Property address
- Date of the safety check
- Appliances and flues checked
- Engineer details
- Gas Safe registration information
- Safety defects identified
- Remedial action where applicable
The exact appliances and flues covered depend on the landlord’s responsibilities at the property.
Is a CP12 the Same as a Boiler Service?
No.
This is one of the most important points for landlords to understand.
A gas safety check is focused on safety requirements.
A boiler service is maintenance intended to assess the condition and operation of the boiler.
They are not automatically interchangeable.
HSE guidance specifically warns landlords not to assume that an annual boiler service satisfies the gas safety check requirement, or that a gas safety check by itself provides sufficient ongoing maintenance.
If you are a landlord, you should therefore understand the difference between:
Gas safety check → Safety and compliance
Boiler service → Boiler maintenance and condition
Both can be important, but they serve different purposes.
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What Happens If a Gas Safety Check Finds a Problem?
If an engineer identifies a safety defect, appropriate action should be taken.
The correct response depends on the nature and seriousness of the defect.
Where an appliance is considered unsafe, it should not continue to be used until the problem has been appropriately addressed.
Landlords should take gas-safety findings seriously and arrange any required remedial work with an appropriately qualified professional.
Do Tenants Need a Copy of the Gas Safety Record?
Yes.
HSE guidance states that landlords must provide the relevant gas safety record to existing tenants within 28 days of the check and to new tenants before they move into the property, subject to the applicable requirements.
Keeping accurate records is therefore an important part of managing a rental property.
How Long Should Landlords Keep Gas Safety Records?
Landlords should maintain appropriate records of gas safety checks and related documentation.
HSE guidance explains that landlords have record-keeping responsibilities relating to gas safety checks.
If you manage several rental properties, keeping a clear schedule of check dates can make it easier to avoid missed deadlines.
Why Gas Safety Matters for South London Landlords
South London has a large number of rental properties, and landlords may manage anything from a single property to a larger portfolio.
For property owners and letting professionals, organising annual gas safety checks in advance can help avoid last-minute problems.
A simple process can help:
Check the due date → Book a qualified engineer → Complete the gas safety check → Review any findings → Keep the record → Provide it as required
If remedial work is identified, it should be dealt with appropriately rather than simply filed away with the certificate.
What About Multiple Rental Properties?
If you manage several properties, keeping track of individual gas safety dates can become difficult.
A useful system is to maintain a property list containing:
- Property address
- Tenant details
- Last gas safety check date
- Next due date
- Boiler service date
- Appliance information
- Any outstanding remedial work
- Relevant documentation
This can make annual compliance easier to manage.
CP12 and Boiler Servicing: Why Both Matter
Landlords sometimes ask:
“If my boiler has been serviced, do I still need a gas safety check?”
The answer is that you should not assume one automatically replaces the other.
The HSE specifically distinguishes gas safety checks from annual servicing and maintenance.
A sensible property-maintenance approach is therefore to make sure the required gas safety check is completed while also maintaining the boiler appropriately.
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Frequently Asked Questions About CP12 Certificates
What is a CP12 certificate?
CP12 is a commonly used term for the Landlord Gas Safety Record issued after the relevant gas safety check.
How often does a landlord need a CP12?
For properties covered by the relevant regulations, the gas safety check must generally be completed every 12 months.
Who can issue a CP12?
The gas safety check must be carried out by an appropriately qualified Gas Safe registered engineer.
Is a CP12 the same as a boiler service?
No. A gas safety check and boiler service are different. Landlords should meet the relevant gas safety requirements and maintain appliances appropriately.
Does every rental property need a gas safety check?
Landlords should determine whether their property and appliances fall within the applicable gas safety requirements. Where the regulations apply, the required annual check must be arranged.
When should a landlord arrange a gas safety check?
Landlords should plan ahead so the required annual check is completed within the appropriate timeframe. HSE guidance allows certain flexibility around the timing of the annual check.
What happens if the engineer finds an unsafe gas appliance?
The appropriate safety action should be taken based on the defect. An unsafe appliance should not continue to be used until the relevant problem has been properly addressed.
CP12 Gas Safety Certificate in South London
If you’re a landlord or property manager looking for a CP12 gas safety certificate in South London, GasFlow4U can help with gas safety requirements for eligible rental properties.
Gas safety work should always be carried out by a suitably qualified Gas Safe registered engineer.
For landlords, staying organised is about more than having a certificate. Regular checks, appropriate maintenance and prompt action on safety issues all contribute to safer rental properties.
Contact GasFlow4U to discuss your CP12 and gas safety requirements in South London and surrounding areas.