Who is allowed to use the Gas Safe logo?
Registered gas businesses, and nobody else. Gas Safe Register's own benefits page says "Only Gas Safe registered engineers are able to use the Gas Safe logo on their vehicles, clothes and promotional materials" (as of October 2026).
The register's Brand Enforcement Policy goes further. It says only registered gas businesses may display the brand or a registration number, and that the number can only be used with the registered trading name (as of October 2026, policy version 5.0).
That last point catches people out. If your van says "Smith Heating" but the register lists "J Smith Plumbing Services", the logo belongs next to the registered name. Keep the two matched, or update your trading title with the register.
The logo is also tied to the law, not just to marketing. The Health and Safety Executive explains that "Anyone employed to work on gas appliances in domestic premises must be a Gas Safe registered engineer", and that landlords must only use registered engineers for maintenance and safety checks under the Gas Safety (Installation and Use) Regulations 1998 (as of October 2026).
So the yellow triangle is a public signal that you can legally do the job. Customers read it that way, which is exactly why misusing it is treated seriously.
Where do registered businesses get the official Gas Safe logo?
From the register itself. The benefits page says that once you are registered "you'll be able to download our marketing toolkit", which "contains our logo, templates and advice on how to create your own advertising and stationery using our branding" (as of October 2026).
In practice:
- Log in to your business account on gassaferegister.co.uk (the area for registered engineers and businesses).
- Find the marketing toolkit and download the logo files: colour and black and white versions.
- Save the files somewhere your web designer and sign writer can both reach them.
- If you cannot find the toolkit, contact Gas Safe Register's customer services rather than searching the web for a copy.
Ask your designer to use the file exactly as supplied. Do not let anyone redraw, recolour or "tidy up" the triangle.
Why not just copy the Gas Safe logo from a free logo site?
Because those files are not licensed to you, and they may not be the current artwork.
Search "gas safe logo" and you will find plenty of PNG and SVG download pages. We are not linking to any of them. Here is why they are a bad idea even for a registered business:
No licence.
The brand is licensed to registered businesses under the register's guidelines. A random file from a third party comes with none of that.
Wrong version.
Copies get stretched, cropped, saved at low resolution or mixed up with older marks. Breaching the brand guidelines is itself listed as misuse in the enforcement policy.
Wrong signal.
If the logo looks blurry or odd on your homepage, it makes customers doubt the rest of the page.
Easy trail.
If an unregistered business uses one of these files, "I downloaded it" is no defence.
The official toolkit is free to registered businesses. There is no good reason to use anything else.
What does Trading Standards say about membership logos?
Trading Standards guidance on membership logos and claims of approval says the Digital Markets, Competition and Consumers Act 2024 "bans businesses from displaying any form of trust mark, quality mark or equivalent if they are not authorised to do so" (as of October 2026).
The same guide makes several points every plumbing firm should know:
- Do not use a logo until the organisation has authorised you.
- Claiming approval you do not hold is banned, and so is claiming it while breaking the scheme's terms.
- Verbal claims count too, so what you say on the phone matters as much as your website.
- You remain responsible for claims made on your behalf, including by an agency that builds your site or runs your ads.
- Remove logos promptly when membership lapses or is cancelled.
- It singles out the Gas Safe logo: "Particular care should be taken in the use of the Gas Safe logo."
Gas Safe Register's enforcement policy adds that details of misuse may be passed to the enforcement authority, and that under the consumer protection rules it cites, failure to comply "is a criminal offence and can result in an unlimited fine" (as of October 2026).
That is the bit worth remembering. A logo you are not entitled to is not a design choice. It is a legal risk.
How should the Gas Safe logo and number appear on your website?
The register's enforcement policy ties your registration number to your registered trading name, and the HSE tells customers to check that number before letting anyone work on their gas (as of October 2026). On a website, that translates into a few simple placements.
Header or hero
Official logo, plus "Gas Safe reg. no. 123456" as live text
Footer, every page
Registered trading name and registration number
Boiler and gas service pages
Logo near the booking button and a line on checking engineers
About or team page
Each engineer's name, with a note that ID cards are shown on arrival
Quotes, invoices and certificates
Registration number, matching the website
A few practical tips:
- Type the number as text, not baked into an image. Text can be read by Google and by AI assistants, and customers can copy it.
- Link to the register's search page so customers can check you. The HSE notes customers can check a business by texting "Gas" and the business registration number to 85080, and can check an engineer using the licence number on their ID card (HSE, as of October 2026).
- Do not crowd it. Follow the spacing and sizing advice that comes with the toolkit artwork, and do not squash other badges up against the triangle.
- Only list the work you are qualified for. The HSE says competencies are marked on the back of each engineer's ID card. If nobody on your team holds commercial catering or LPG competence, do not list those services.
If you do plumbing and gas work, it can help to make the split obvious. A line such as "All gas work carried out by our Gas Safe registered engineers" is clear and honest, provided it is true.
How should the logo go on a van, uniform and paperwork?
The same rules apply off-screen. Gas Safe Register lists vehicles, clothes and promotional materials as places registered engineers may use the logo, and its toolkit includes templates for stationery and advertising (as of October 2026).
For vans, ask your sign writer to work from the toolkit artwork. Give them the vector file, not a screenshot from your website. Put the registration number close to the logo and make sure the trading name on the van matches the register.
If you change company structure, for example from sole trader to limited company, your registration details may change. Update the van, website, Google Business Profile and invoices together so nothing contradicts anything else.
Which other plumbing logos have rules?
Gas is not the only scheme with a protected logo. If you hold any of these, they are worth showing. If you do not, leave them off.
| Logo | Who may use it | Where to get the artwork |
|---|---|---|
| WaterSafe | Businesses and individuals named in a valid WaterSafe approval | WaterSafe member resources |
| APHC | APHC members | Through APHC membership |
| CIPHE | CIPHE members | CIPHE member shop and resources |
| MCS | Installers licensed under the MCS Installer Agreement | Brand pack from your certification body |
WaterSafe
WaterSafe describes itself as a register of approved plumbers working under approved contractor schemes, including those run by APHC and CIPHE (as of October 2026). Its brand toolkit states that "All businesses and individuals named in a valid approval by WaterSafe may use the WaterSafe Logo", that "You must use the original WaterSafe Logo", and that once membership expires the logo can no longer appear (as of October 2026, version 8).
The toolkit also asks for at least 25 pixels of space between the logo and other elements on a web page. Official artwork and a digital promotion pack sit on WaterSafe's member resources page.
APHC and CIPHE
APHC tells members its "logo can be used to visually differentiate you from competitors" (as of October 2026). CIPHE sells logo vehicle stickers in a "Member Only" section of its shop (as of October 2026). Both point the same way: membership first, logo second.
MCS
For heat pump installers, MCS matters because customers need an MCS certified installer to claim the Boiler Upgrade Scheme grant. MCS says its mark "may only be used by those licensed to do so", that assets come from your certification body after you sign the Installer Agreement, and that it "will take action against any misuse" (as of October 2026).
What is a safe wording if you are not registered yourself?
Plenty of plumbing firms subcontract gas work. That is fine, but the logo does not travel with the subcontractor.
Because the brand is licensed only to registered businesses, a registered subcontractor cannot hand their logo or number to you for your own marketing. What you can do is describe the arrangement truthfully, for example that gas work is carried out by a named Gas Safe registered business, and only if that is true for every gas job you take on. If in doubt, ask Gas Safe Register or your local Trading Standards service before publishing.
Things to avoid on a non-registered firm's site:
- "Gas Safe plumbers" in your business name, page titles or ads. The enforcement policy treats using "Gas Safe" or a similar mark in a trading name as misuse.
- Stock photos of vans or engineers wearing the triangle.
- Listing boiler installs, servicing or landlord certificates as if you do them yourself.
How do we handle logos when we build a plumbing website?
We know the Gas Safe Register, WaterSafe, MCS and Trading Standards logo rules and build with them in mind. We ask for your registration details and toolkit files at the brief stage, show numbers as text, and keep scheme logos away from pages for work you do not offer. You remain responsible for what your website says, so we ask you to check each claim before launch.
If you are a gas or boiler business, see our boiler and gas engineer website design service. Heat pump installers should look at heat pump installer website design, which covers MCS and grant wording. For a wider look at what good plumbing sites get right, read our scorecard of the best plumber websites, or see how we approach plumbing website design.
Frequently asked questions
Can I download the Gas Safe logo for free?
Only if your business is on the Gas Safe Register. Registered businesses download the official artwork from the marketing toolkit in their online account, and nobody else is licensed to use it.
Can a plumber who doesn't do gas work show the Gas Safe logo?
No. If your business is not on the Gas Safe Register, the logo must not appear on your website, van or paperwork. You could show WaterSafe or a trade body logo instead, if you are a member.
Do I need to show my Gas Safe registration number on my website?
It is strongly advisable, because it lets customers check you on the register in seconds. Put it next to the logo and in your footer, against your registered trading name.
My sub-contractor is Gas Safe registered. Can I use their logo?
No. The brand is licensed only to registered businesses, so it cannot be lent to you. You can describe who carries out the gas work, provided the wording is true for every job.
What happens if my registration lapses?
Take the logo off your website, social profiles and van straight away. Trading Standards guidance says logos must come down promptly once membership ends, for any reason.