If you run a business that uses gas appliances – whether it’s a café, a hotel, or an office with a gas boiler – you’ll need a commercial gas safety certificate. It’s not just a box-ticking exercise. It’s a legal requirement, and more importantly, it helps keep your staff and customers safe.
But how much does a commercial gas safety certificate actually cost? The answer isn’t completely straightforward, but we’ll break it down so you know what to expect
What Is a Commercial Gas Safety Certificate?
Also known as a CP42 certificate (mainly for commercial kitchens) or a CP15 for gas installation testing, this document proves that a registered Gas Safe engineer has inspected your appliances and found them safe to use. It’s required annually and covers things like:
- Gas boilers
- Cookers and ovens
- Pipework
- Flues and ventilation
If you don’t have one, or if it’s out of date, you could face fines or even be shut down by your local authority.
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So, What’s the Cost?
Here’s the tricky bit: commercial gas safety certificate cost can vary quite a bit. Prices generally start from around £190 to £550, but that’s for smaller setups. For larger sites or places with multiple appliances, it can go up to £900 or more.
The main factors that affect the cost are:
- Number of appliances – The more you have, the longer it takes to inspect.
- Type of appliances – Commercial catering equipment takes more time and expertise.
- Size of the premises – A small café will be quicker to check than a big industrial kitchen.
- Location – Prices in London and the South East are often higher than in the North or Midlands.
It’s always best to get a few quotes from Gas Safe registered engineers who specialise in commercial properties. Some companies offer package deals if you’ve got multiple sites or need ongoing servicing too.

Why It’s Worth Paying for a Proper Inspection
Yes, you might be tempted to go for the cheapest quote, but this is one area where it really does pay to be thorough. A rushed or poor-quality inspection can miss issues that lead to dangerous gas leaks or carbon monoxide exposure.
A proper inspection means peace of mind – and a valid certificate that covers you in case of an insurance claim or visit from the authorities.
How to Find a Reputable Engineer
Only Gas Safe registered engineers are legally allowed to carry out commercial gas safety checks. You can check their ID card or look them up on the Gas Safe Register.
It’s a good idea to choose someone with experience in your industry – whether that’s catering, hospitality, education, or healthcare – as they’ll understand the specific risks and requirements.
To sum up: if you’re budgeting for a commercial gas safety certificate, expect to pay somewhere between £190 to £550, depending on the size of your business and how much equipment you’ve got. Don’t just go for the lowest price – choose someone qualified and reliable. Safety, after all, isn’t something to take lightly.
And remember – getting your certificate sorted each year isn’t just about staying on the right side of the law. It’s about protecting people, and that’s worth every penny.
FAQs
Yes – if your business uses gas appliances, you’re legally required to have a valid commercial gas safety certificate, updated every 12 months. This applies to restaurants, shops, offices with gas boilers, schools, and more.
Every year. Annual checks are a legal requirement under the Gas Safety (Installation and Use) Regulations 1998.
No – they need to be Gas Safe registered for commercial work. Not all engineers are qualified for commercial inspections, so always check their credentials.
Yes, most companies will charge VAT on top of the quoted cost unless otherwise stated, so it’s worth double-checking if the quote is inclusive or not.
You could face fines, enforcement action, or even have your business shut down. More importantly, you’d be putting people at serious risk from gas leaks or carbon monoxide exposure.
Yes – many companies offer bundle deals, including servicing, maintenance, and emergency cover. This can save you money in the long run and keep everything in one place.
It depends on how many appliances you’ve got, but most inspections take between 30 minutes to 2 hours. Larger sites will take longer.
Yes. A landlord certificate (CP12) is for domestic rental properties. A commercial gas safety certificate is more detailed and covers different types of equipment used in a business setting.
Further Reading