If you’re a landlord in Worthing, you’ve probably heard the term landlord gas safety certificate more times than you can count. It comes up when you’re buying a rental property, signing new tenants, or sorting renewals. But I still get plenty of calls from landlords asking what it actually involves and when it’s needed.
It’s one of those jobs that sounds straightforward but has very clear legal responsibilities behind it. As heating engineers working across Worthing and the surrounding areas, we see first-hand how important it is to get this right. Not just to tick a box, but to protect your tenants and yourself.

Legal requirements for landlords
If you rent out a property in the UK, you are legally responsible for making sure all gas appliances, pipework and flues are safe. That applies whether it’s a single flat above a shop or a three-bedroom house with a combi boiler in the kitchen.
The law requires you to have a valid landlord gas safety certificate for each rental property. This is formally known as a Gas Safety Record. It must be carried out by a Gas Safe registered engineer and renewed every 12 months.
Once completed, you need to:
- Give a copy to existing tenants within 28 days of the check
- Provide it to new tenants before they move in
- Keep a copy on file for at least two years
I often get asked, “Does it matter if my tenant says everything’s working fine?” The short answer is yes, it still matters. Even if the boiler seems perfect, the annual check is a legal obligation. It’s not optional and it’s not something you can leave until there’s a problem.
What the inspection includes
A proper gas safety inspection is more than just a quick look at the boiler. When we carry out a landlord gas safety certificate, we follow a set process to make sure the entire system is safe.
Appliance checks
We test every gas appliance provided by the landlord. That usually includes the boiler, gas hob, oven and sometimes a gas fire. We check that each appliance is operating at the correct pressure and burning gas safely.
If you’ve got an older property in Worthing with a back boiler or an ageing gas fire that tenants rarely use, it still needs to be inspected if it’s connected.
Flue and ventilation checks
We check that flues are properly fitted and not blocked. In coastal areas like ours, corrosion can be an issue, especially with external flue terminals exposed to salty air.
Ventilation is also important. Boilers in cupboards need adequate airflow. We often come across situations where cupboards have been boxed in or altered after a kitchen refit, restricting ventilation and creating a risk.
Gas tightness test
We carry out a tightness test to make sure there are no gas leaks on the system. Even a small undetected leak can become dangerous over time.
If everything is safe and compliant, we issue the landlord gas safety certificate. If we find a fault, we’ll explain clearly what needs to be done. In some cases, we may have to cap an appliance straight away if it poses immediate danger. It’s not something landlords like to hear, but safety always comes first.
Renewal rules and timing
A landlord gas safety certificate is valid for 12 months from the date of the check. However, there’s a bit of flexibility that many landlords don’t realise.
You can renew the certificate up to two months before it expires without losing the original renewal date. So if your certificate runs out at the end of June, you can have the inspection done any time from 1 May and still keep the June renewal date for the following year.
This is particularly useful if you manage multiple properties. It allows you to keep them all on a similar schedule rather than juggling inspections throughout the year.
One common question we’re asked is what happens if tenants refuse access. As a landlord, you’re expected to take reasonable steps to arrange the inspection and keep records of your efforts. Emails, letters and appointment reminders should all be documented. It’s about showing that you’ve done everything you reasonably can to comply.
Leaving it until after the expiry date can lead to serious consequences, including fines and difficulties with insurance claims. It’s simply not worth the risk.
If you’re managing property in Littlehampton, Rustington, East Preston, Ferring, Worthing, Lancing, Shoreham-by-Sea or Southwick and need straightforward advice, we’re always happy to talk it through. At N J Lees Plumbing & Heating Ltd we work with landlords across the local area every week, from single-property owners to those with growing portfolios. N J Lees Plumbing & Heating Ltd understands that compliance can feel like paperwork and deadlines, but it’s really about keeping people safe and protecting your investment.
If your certificate is due or you’re unsure when it was last done, don’t leave it to chance. Book a gas safety inspection
**meta title:** Landlord Gas Safety Certificate Explained
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**slug:** landlord-gas-safety-certificate
**img** gas-safety.jpg