Custom Warning Stickers alert people before they reach the hazard
Warning stickers flag a specific hazard right at the point of contact: a hot surface on an appliance, a pinch point on a machine, a battery compartment on a product or an overhead cable near a gate. We print your warnings in the colours and symbols you have chosen, sized for the object they sit on.
- Warnings sized for products, machines and doors
- Laminated vinyl that resists oil, heat and cleaning
- Your own pictograms and wording, proofed first
Free quote · 10-12 working days from the day you approve your digital proof
Right where the risk is - PDF proof firstNothing prints until you approve it
- Free artwork reviewYour file checked before production
- Custom sizes & shapesMade to your dimensions
- UK-wide delivery10-12 working days from proof approval
Choose the right level of warning
Different hazards call for different signals. These categories cover the wider family of warning signs.
Safety stickers
Workplace instructions and PPE reminders.
View Safety StickersDanger sign stickers
For serious and immediate hazards.
View Danger Sign StickersCaution stickers
For lower-risk reminders.
View Caution StickersWarning labels
Smaller product and packaging warnings.
View Warning LabelsElectrical safety stickers
Voltage and isolation notices.
View Electrical Safety StickersFunny warning stickers
Light-hearted warnings for gifts and fun.
View Funny Warning StickersPlanning warning stickers that get noticed
A warning has to interrupt someone who is busy doing something else. Contrast, a recognisable symbol and a short, specific message are what make that happen.
Why use custom warning stickers?
Generic signs say ‘warning’ but rarely say what the hazard actually is. A custom sticker can name it – ‘hot exhaust’, ‘blade under guard’, ‘do not open while running’ – which gives people something they can act on.
Manufacturers and product designers need warnings that fit their casings and labels exactly. Printing to order means the sticker matches the shape of a recess or panel and the brand colours of the rest of the product.
For vehicles, gates, plant and doors, stickers are simply easier to fix than rigid signs, and they stay where they are put.
Common uses for warning stickers
Warning stickers are ordered for:
- Machinery and tools – moving parts, hot surfaces and ear protection zones.
- Consumer products – appliances, battery compartments and heaters.
- Vehicles and trailers – overhanging loads, tail lifts and air brakes.
- Gates and barriers – automatic operation and crush-point notices.
- Chemical storage – cupboards, drums and cleaning stores.
- Farms and estates – livestock, electric fences and machinery yards.
Materials, finishes and sizes
Laminated vinyl is the dependable choice for warnings on machines, vehicles and outdoor equipment because it tolerates oil, washing and grime. Where heat or solvents are involved, describe the conditions so we can advise on suitability.
Small product warnings may only be a couple of centimetres across, so keep symbols simple and text large enough to read without squinting. Door and gate warnings need to register from further away and benefit from a bold border.
For areas used at night or in poor light, ask about reflective material, and consider fluorescent colours where a warning must stand out in daylight.
Getting the warning content right
The duty to decide what a warning must say rests with the manufacturer, employer or site owner. Check current HSE guidance, and any product rules for your sector, for the symbols, colours and wording that apply, then send us the finished content.
We print exactly what you approve and will point out artwork issues such as low contrast or tiny type. We do not assess hazards or confirm that a warning satisfies any particular rule.
Keep each sticker focused on a single hazard. When one label tries to cover five risks, people tend to read none of them.
How clear warnings help your business
Well-printed warnings show customers, inspectors and employees that hazards have been thought about. On products, they add a finished, professional look that handwritten or photocopied notices never achieve.
Consistent designs across your equipment also make training easier, because staff quickly learn to associate each colour and shape with a type of hazard.
Why businesses choose AStickerPrinting for warning stickers
We check every warning file at no cost, looking for fine lines, missing text and colours that will not reproduce. You then approve a PDF proof at true size, and your warnings are produced in 10–12 working days with delivery across the UK.
Build your warning stickers
Tailor each warning to its hazard and its surface.
Get your warning stickers made
Share your warning artwork or wording, the surface each sticker goes on and the quantities. We will advise on material and quote the order.
- Share your requirements
- Approve your PDF proof
- Printed & delivered UK-wide
Why UK businesses order Warning stickers from us
You approve every job first
We send a PDF proof for your approval before anything is printed, so size, colour and layout are signed off by you.
Made to your specification
Size, shape, material and finish are set for each order rather than chosen from a fixed list.
A timeline you can plan around
Typical turnaround is 10-12 working days, counted from the day you approve your digital proof. Ask about faster arrangements before you order.
Warning stickers questions, answered
Will your warning stickers make my product compliant?
We print the design you approve but cannot confirm that it satisfies any regulation. Check the requirements for your product or workplace, including current HSE guidance, before finalising your warnings.
What is the difference between warning, caution and danger stickers?
They are generally used to signal different levels of risk, with danger reserved for the most serious hazards. Your own risk assessment and applicable guidance should decide which you use.
Can warning stickers go on hot equipment?
Some surfaces get too hot for standard adhesives. Tell us the typical temperature and how close the sticker will be to the heat source, and we will say whether we can offer something suitable.
Can you print very small product warnings?
Yes, but detail is limited at small sizes. Use a simple symbol and short text, supplied as vector artwork if possible. The proof will show whether it remains readable.
Are warning stickers suitable for outdoor gates and fences?
Laminated vinyl suits outdoor use on smooth metal and plastic. Rough, rusty or textured surfaces do not hold stickers well, so clean and smooth the area first.
Can I order warnings in several languages?
Yes. Supply the approved translations and we will set them into the design. It is worth having translations checked by a native speaker before you approve the proof.
How soon can I have my warning stickers?
They are produced in 10–12 working days, counted from the day you approve your proof. Tell us if a product launch or inspection depends on them.
- Quality checkedArtwork reviewed and proofed before print
- Clear turnaround10-12 working days from approval
- Tailored quotesPriced for your size and quantity
- Design supportFree artwork review on every order