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10 Things You Didn’t Know About CP12 Certificates

May 31, 2018 - 5 minutes

No landlord or tenant should be uninformed when it comes to the law regarding gas safety. Here’s a few things you might not be aware of when it comes to CP12 certificates.

CP12 certificates were designed to provide proof that landlords have fulfilled their moral and legal obligations regarding the gas equipment present in their properties. Faulty gas equipment poses a great threat to life and property and has the potential to be devastating – from leaks causing suffocation to other faults causing explosions.

CP12 certificates are indeed important. Here are ten things you probably didn’t know about them.

1. What is a CP12 certificate? Origin of the Name:

The name of CP12 certificates is an abbreviation of CORGI Proforma 12. For almost two decades, from 1991-2009, the legally authorised regulatory body for UK gas installers was CORGI (Council for Registered Gas Installers) and it was them who gave the CP12 certificate its official classification.

2. What’s the Difference Between CP12 and Landlord Gas Safety Certificates?

There is no difference between the two documents. When CORGI lost is official standing as the regulatory body for UK gas engineers, the CP12 designation was considered to no longer be appropriate. The document was renamed the Landlord Gas Safety Certificate to give it a more generic title which wasn’t tied to any one company.


However, both terms are still used interchangeably, although this will probably become less-and-less frequent as older engineers leave the gas profession, and the newer generation proliferates.

3. Price

There is no set price for a CP12 certificate, and it’s entirely up to the engineer how much they charge for the inspection and issue of the document. Prices can range from as little as £35 to as much as £150 or more, with no discernible difference in the service. And this is just for the certificate itself – the cost of any repairs which need to be made because of a failed inspection are additional.

4. An Annual Obligation

The law states that a landlord must arrange a gas safety inspection for every property they own on an annual basis. The responsibility is on the landlord to organise and pay for the inspection and certificate, as well as any repairs required.

5. Twelve Month Lifespan

Each CP12 certificate lasts for twelve months from the date of issue, not from the date of the inspection. This is an important distinction as, should any repairs or maintenance be required between the inspection and issue of the certificate, this will extend the date when the next inspection is required.

6. Covers All Gas Equipment in the Property

The regulations around CP12 certificates cover all gas-related equipment in a property. This includes gas appliances such as ovens and boilers, pipework and fittings responsible for the conveyance of gas, and exhaust equipment such as flues and chimneys.

When the inspection is carried out, it will involve the following:

  • Check appliances for gas tightness
  • Check the standing and working gas pressure (if test points are available)
  • Check the burner pressure/gas pressure against the manufacturer’s data plate
  • Check for the satisfactory provision of all necessary ventilation
  • Test the flue flow to ensure the removal of products of combustion
  • Check that safety devices work properly
  • Check for any user error or misuse of gas devices or items

Should any of the above checks fail, the landlord will need to arrange for any repairs to be made before a re-inspection can be carried out.

7. Specific Timespans

Tenants must be issued with a copy of the CP12 certificate within 28 days of the document being issued. Landlords are legally required to keep their copy of the form on file for a minimum of two years to allow for any auditing to be carried out should it be deemed necessary.

8. New Tenants

Every tenant must receive a copy of the most recent CP12 certificate upon moving into the property for the first time, and the document should form part of their letting pack, along with their tenancy agreement and any other documents to which they are entitled.

9. The Gas Safe Register

After CORGI lost their official standing, the title passed to Gas Safe, which operates on behalf of the UK Health and Safety Executive. Any engineer carrying out gas safety inspections and issuing CP12 certificates must be registered with the organisation. Gas Safe has a search function on its website which allows anyone to check on the registration status of a particular engineer and search for registered professionals in their area.

10. Digital CP12 Certificates are a Thing

CP12 certificates are usually completed on bulky pads of triplicate paper. With an engineer’s day frequently involving dirty work, these pads can quickly become greasy and battered, resulting in unprofessional-looking documents.

With digital gas certificates, all forms will be legible, clean and crisp. Copies can be instantly sent to everyone who is entitled to one, and they can be stored on a computer instead of in bulky filing cabinets. In addition, touchscreen signature capture features mean there is no need to ever print out a physical copy.

Gas certificates

A digital and paper-free solution will also allow field service companies to improve their carbon footprint and work towards a more sustainable industry.

Are You Ready to Take Your Business Up a Notch?

If you are looking for a digital solution for your business, come and see for yourself how Commusoft gas certificates software can empower you to meet the day-to-day demands of the modern field service environment. Join hundreds of like-minded professionals and add Commusoft gas certificates software to your toolbox today. Book a call today!

See how you can generate CP12 certificates from your mobile with Commusoft software

Producing CP12 certificates can be a cumbersome and time-consuming task. Your gas engineers will love being able to create CP12 certificates quickly and efficiently through Commusoft software.

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