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Danger Signs

Severe-hazard warning signs to BS EN ISO 7010. Electrical, chemical, asbestos, water danger and bespoke.

33 products across 4 categories

Browse danger sign categories

DANGER The Back of This Panel Is Live Signs - Direct Signs

Danger Electrical Signs

Danger of electric shock, high voltage, lightning, electrical equipment warnings.

Browse 12 products

DANGER Toxic gas - Direct Signs

Danger Chemical Signs

Corrosive, toxic, harmful substance, and chemical hazard warnings.

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Danger Water Signs

Deep water, drowning, undertow, and water-related danger signs.

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Warning May Contain Asbestos Sign - Direct Signs

Asbestos Danger Signs

Asbestos warning, removal area, and Control of Asbestos Regulations 2012 compliance.

Browse 9 products

Popular danger signs

DANGER The Back of This Panel Is Live Signs - Direct Signs

DANGER The Back of This Panel Is Live Signs

From £1.13

DANGER Test Area Signs - Direct Signs

DANGER Test Area Signs

From £5.64

DANGER Overhead live Wires Signs - Self Adhesive Vinyl / 400mm X 550mm - Direct Signs

DANGER Overhead live Wires Signs

From £5.64

DANGER Overhead high Voltage Cables Signs - Self Adhesive Vinyl / 300mm X 400mm - Direct Signs

DANGER Overhead high Voltage Cables Signs

From £2.51

DANGER of Death Keep out Signs - Direct Signs

DANGER of Death Keep out Signs

From £2.51

DANGER Of Death Keep Off Signs - Direct Signs

DANGER Of Death Keep Off Signs

From £2.51

DANGER Of Death Keep Clear Signs - Direct Signs

DANGER Of Death Keep Clear Signs

From £2.51

DANGER Of Death Signs - Direct Signs

DANGER Of Death Signs

From £2.51

When you need a danger sign

"Danger" is reserved for the severest hazards in UK workplace signage — situations where exposure could cause serious injury or death. They appear most commonly in three categories: electrical (high voltage equipment, exposed conductors, substations), chemical (corrosive substances, severe inhalation risks), and environmental (deep water with drowning risk, asbestos contamination).

Direct Signs supplies the full UK danger signage range — to BS EN ISO 7010 for general hazards, and to specific sector regulations (Electricity at Work Regulations 1989, Control of Asbestos Regulations 2012, COSHH 2002) where additional formats apply.

Common UK danger sign types

  • Danger of electric shock — yellow triangle pictogram, often paired with "Danger High Voltage" wording
  • Danger Deep Water — typically used at reservoirs, harbours, lock gates, treatment works
  • Danger Asbestos — required by the Control of Asbestos Regulations 2012 in any area where asbestos is present
  • Danger Chemical / Corrosive / Toxic — paired with the relevant CLP/GHS pictogram
  • Danger Falling Rocks / Quarry — quarry, construction, and excavation site warnings
  • Danger Confined Space — required by the Confined Spaces Regulations 1997

Common questions

Danger sign FAQs

What is a danger sign?
A danger sign warns of an immediate hazard that could cause serious injury or death. In the UK, "danger" warnings appear as yellow triangle BS EN ISO 7010 signs (general hazards) or red-and-black "Danger" wording signs (electrical hazards, particularly under the Electricity at Work Regulations 1989). The "DANGER" word is reserved for the most severe hazards under ANSI Z535 conventions, sometimes used in UK workplaces.

When do I need a danger sign?
Danger signs are required where serious immediate injury or death is possible — high voltage electrical equipment, severe chemical hazards, deep water with drowning risk, asbestos contamination, and similar. The Health and Safety (Safety Signs and Signals) Regulations 1996 plus sector-specific regulations (COSHH, EAWR, Control of Asbestos) drive when they apply.

Are danger signs and warning signs the same thing?
No — though they overlap. Under BS EN ISO 7010, all "warning of hazard" signs use the yellow triangle. The word "Danger" is added for severe hazards. ANSI Z535 (US standard, sometimes used in UK industrial settings) distinguishes "Danger" (red, immediate severe hazard), "Warning" (orange, possible severe hazard), and "Caution" (yellow, possible minor hazard).

What materials are danger signs available in?
Self-adhesive vinyl, rigid PVC (Foamex), aluminium composite, and aluminium. For high-voltage electrical danger signs, aluminium is preferred due to durability around live equipment. For chemical-area danger signs, choose materials resistant to the specific substance. Custom material specifications available on request.

Can I order custom danger signs?
Yes. Bespoke wording, branded colours, multi-language signs, and custom dimensions are all available with a typical 3-5 working day lead time. Bulk orders qualify for trade pricing. Provided the standard pictogram and yellow-triangle format are preserved, custom wording does not break BS EN ISO 7010 compliance.

Knowledge hub

Safety sign colours explained

Why yellow triangles mean "warning/danger" and how the rest of the BS EN ISO 7010 colour system works.

Read the guide →

Bulk order or custom signs?

Trade pricing on 50+ units. Bespoke wording for sector-specific danger warnings.

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