Hazard Warning Signs

Hazard Warning Signs alert employees, visitors and contractors to potential dangers that may cause injury, illness or property damage. Recognisable by their yellow triangular design, these signs help identify workplace hazards before people enter an area or begin a task.

Also known as warning signs, danger warning signs or hazard alert signs, they are widely used in factories, warehouses, workshops, construction sites, schools, healthcare facilities and public buildings.

Common installation locations include machinery areas, electrical rooms, chemical storage facilities, loading bays, restricted access areas, plant rooms and workplace entrances where hazards need to be clearly communicated.

Available in self-adhesive vinyl, rigid plastic, aluminium and photoluminescent materials, many of our hazard warning signs are manufactured in the UK for excellent visibility, durability and long-lasting performance.

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Subcategories

Electrical Hazard Signs
Flammable & Explosive Signs
Hazardous Chemical Signs
Asbestos Warning Signs
Radiation & Specialist Signs
Temperature Warning Signs
Warning Corrosive Risk Sign

Warning Corrosive Risk Sign

This corrosive sign informs people that there are corrosive substances on the premises. Our corrosive warning signs are available in different material.
£2.71
Danger highly flammable warning safety sign with flame symbol

Danger Highly Flammable Sign

Danger Highly Flammable Sign clearly warns people of highly flammable substances and helps reinforce awareness of fire and explosion risks.
• Alerts people to the presence of highly flammable materials
• Suitable for industrial sites, storage areas and hazardous workplaces
• High-visibility yellow and black design provides clear hazard recognition
• Available in Rigid Plastic (1mm), Rigid Plastic 1mm (Self Adhesive Back), Rigid Plastic (2mm), Rigid Plastic 2mm (Self Adhesive Back) and Self Adhesive Vinyl
• Helps reinforce fire and flammability hazard awareness in designated areas
£2.71
Danger Asbestos Dust warning safety sign with yellow hazard symbol

Danger Asbestos Dust Sign

Warn workers and visitors of hazardous asbestos dust with this Danger Asbestos Dust Sign.
• Clearly communicates the danger of asbestos dust exposure
• Suitable for construction sites, demolition areas and industrial workplaces
• High-contrast yellow and black design ensures maximum visibility and instant recognition
• Available in Rigid Plastic (1mm), Rigid Plastic 1mm (Self Adhesive Back), Rigid Plastic (2mm), Rigid Plastic 2mm (Self Adhesive Back), and Self Adhesive Vinyl
• Helps reduce the risk of respiratory harm by alerting workers and visitors to asbestos dust hazards
£2.71
Explosive hazard GHS label sticker with red diamond and explosion symbol

Explosive Label Sticker

Indicates explosive hazards using a recognised GHS symbol for clear identification.
• Alerts people to the presence of explosive substances or materials
• Suitable for containers, packaging, and workplace environments
• High-contrast red, white, and black design ensures strong visibility
• Self adhesive vinyl provides easy application and durability
• Supports safe handling and compliance with hazard labelling standards
£1.62
Warning Harmful Fumes Hazard Sign

Warning Harmful Fumes Toxic Sign

Clearly warns people of harmful fumes to help reduce the risk of exposure to hazardous airborne substances.
• Alerts people to the presence of dangerous harmful fumes
• Suitable for factories, laboratories and industrial sites
• High-contrast yellow and black design provides clear and immediate recognition
• Available in Rigid Plastic (1mm), Rigid Plastic 1mm (Self Adhesive Back), Rigid Plastic (2mm), Rigid Plastic 2mm (Self Adhesive Back) and Self Adhesive Vinyl
• Helps reinforce awareness of harmful fumes and encourage appropriate caution in affected areas
£2.71
Corrosive Symbol Sign - 150mm x 150mm | Rainbow Safety

Corrosive Symbol Sign

This corrosive sign informs people that there are corrosive substances on the premises. Our corrosive warning signs are available in different material.
£2.78
Voltage Symbol Electrical Sign With Yellow Background

Voltage Symbol Electrical Sign With Yellow Background

Clearly warns people of an electrical hazard using a recognised high-voltage symbol to help reduce the risk of injury.
• Alerts people to electrical danger and high-voltage risks
• Suitable for workplaces, plant rooms and electrical areas
• High-visibility yellow and black design provides clear recognition
• Available in Rigid Plastic (1mm), Rigid Plastic 1mm (Self Adhesive Back), Rigid Plastic (2mm), Rigid Plastic 2mm (Self Adhesive Back) and Self Adhesive Vinyl
• Helps reinforce electrical safety awareness around hazardous electrical equipment
£1.22
Danger Asbestos Dust landscape safety sign with warning symbol

Danger Asbestos Dust Sign - Landscape

Warn staff, contractors and visitors of hazardous asbestos dust with this highly visible danger safety sign.
• Clearly alerts people to dangerous airborne asbestos dust
• Ideal for construction sites, demolition areas and industrial workplaces
• High-visibility yellow and black design for clear recognition
• Available in Rigid Plastic (1mm), Rigid Plastic (2mm) and Self Adhesive Vinyl
• Helps minimise health risks by reinforcing awareness of asbestos dust hazards
£1.82
Highly flammable GHS label sticker with flame symbol in red diamond

Highly Flammable Label Sticker

Indicates highly flammable substances using a recognised hazard label for clear identification.
• Alerts people to the presence of highly flammable materials
• Suitable for containers, packaging, and workplace environments
• High-contrast red, white, and black design ensures strong visibility
• Self Adhesive Vinyl provides easy application and durability
• Supports safe handling and compliance with hazard labelling standards
£1.62
Warning Loading In Progress safety sign with hazard and forklift symbols for warehouses and loading bays

Warning Loading In Progress Sign

Warn staff and visitors of active loading operations with this highly visible warning sign for workplaces and industrial environments.
• Alerts staff and visitors to loading activity hazards
• Ideal for warehouses, loading bays and industrial sites
• High-visibility yellow and black design for clear recognition
• Available in Rigid Plastic (1mm), Rigid Plastic (2mm) and Self Adhesive Vinyl
• Helps improve workplace awareness and reduce loading-related accidents
£14.77
Toxic Symbol Sign with yellow and black skull and crossbones warning symbol

Toxic Symbol Sign

Toxic Symbol Sign clearly warns people of the presence of toxic substances and helps reinforce awareness of potentially hazardous materials.
• Alerts people to areas where toxic substances may be present
• Suitable for industrial sites, laboratories, storage areas and hazardous environments
• High-contrast yellow and black skull and crossbones symbol provides clear hazard recognition
• Available in Rigid Plastic (1mm), Rigid Plastic (2mm) and Self Adhesive Vinyl
• Helps reduce risk by reinforcing awareness of toxic hazards and safe working practices
£2.71
Danger Isolate Main Supply Before Opening Electrical Sign

Isolate Main Supply Electrical Sign

Clearly warns personnel to isolate the main electrical supply before opening equipment to help reduce the risk of electric shock or injury.
• Instructs personnel to isolate the main supply before opening electrical equipment
• Suitable for plant rooms, electrical cabinets, maintenance areas and industrial sites
• High-visibility yellow and black design provides clear recognition
• Available in Rigid Plastic (1mm), Rigid Plastic 1mm (Self Adhesive Back), Rigid Plastic (2mm), Rigid Plastic 2mm (Self Adhesive Back) and Self Adhesive Vinyl
• Helps reinforce safe isolation procedures during servicing, inspection or maintenance
£2.71