Gas Safety Certificate (CP12): What Landlords Need to Know

Written by
James Brown, Gas Safety Engineer
Published on
March 26, 2026
Introduction
Gas safety is a concern for people who own houses in the UK. The people who live in the house need to be safe. The owner needs to follow the rules. Gas safety is really important for the people living in the house. It helps the landlord do what the law says.
You can get a Gas Safety Certificate, which is also called a CP12, when someone who knows what they are doing checks the gas things in the house, like the appliances and the pipes. Says they are okay to use.
At Helpi Life, we can help you find someone good at gas safety and can help you do what the law says and keep your house safe. We help you connect with gas safety professionals who will help you with gas safety and keep your house safe, with gas safety.
A Gas Safety Certificate is a document you get after a registered gas engineer checks the gas appliances in your property.
The certificate shows that important appliances and equipment have been checked. They make sure they are working properly.
The checks include:
* Gas Safety checks, for leaks
* Ventilation checks
* Pressure level checks
* Installation checks to ensure everything is set up correctly
* Safety checks to ensure everything works safely
As a landlord, you need to get a Gas Safety Certificate, also known as a CP12 certificate, every year. It is the law.
You must get one every 12 months.
In the United Kingdom, landlords have to do a gas safety check every year on all the properties they own.
When this check is done, a gas safety engineer will take a look at the things:
* Boilers
* Gas cookers and hobs
* Gas fires
* Pipework and flues
After the gas safety engineer finishes the check, the landlord gets a special paper called a CP12 certificate. The landlord then gives this CP12 certificate to the tenant who is living in the property.
Published: March 27, 2026
Updated: May 4, 2026
