Warning Signs

Hazard Safety Signs warn employees, visitors and contractors about potential dangers within the workplace. Also known as warning signs, hazard warning signs or danger signs, they help identify risks before accidents occur and play a vital role in workplace safety management.

These signs are widely used in factories, warehouses, construction sites, workshops, schools, hospitals, utilities, commercial premises and public buildings where hazards need to be clearly communicated.

Typical installation locations include machinery areas, electrical rooms, chemical storage facilities, loading bays, construction zones, plant rooms, restricted access areas and workplace entrances.

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

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Subcategories

Hazard Warning Signs
Workplace Warning Signs
Industry Warning Signs
Overhead & Head Clearance Signs
Construction & Site Safety Signs
Roof & Height Safety Signs
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
Danger Deep Cold Water Do Not Swim Sign with cold water and no swimming symbols

Danger Deep Cold Water Sign - Do Not Swim

Danger Deep Cold Water Do Not Swim Sign clearly warns of deep cold water hazards and instructs people not to swim.
• Warns of deep cold water and clearly prohibits swimming
• Suitable for lakes, rivers, reservoirs and coastal locations
• High-contrast symbols and bold text provide clear visibility and quick recognition
• Available in Aluminium Composite (3mm), Rigid Plastic (1mm), Rigid Plastic 1mm (Self Adhesive Back), Rigid Plastic (2mm), Rigid Plastic 2mm (Self Adhesive Back) and Self Adhesive Vinyl
• Helps reinforce water safety and reduce the risk of cold water incidents
£12.91
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
Danger Men Working Overhead safety sign with warning symbol for construction and industrial workplaces

Danger Men Working Overhead Sign

Warn staff and visitors of overhead work hazards with this highly visible danger safety sign.
• Alerts people to overhead work and falling object risks
• Suitable for construction sites, industrial areas and maintenance zones
• High-visibility yellow and black design for clear recognition
• Available in Rigid Plastic (1mm)
• Helps reduce the risk of injury in active overhead working areas
£9.83
Danger No Bikes Stay Out Sign with bicycle prohibition and stay out symbols

Danger No Bikes - Stay Out Sign

Danger No Bikes Stay Out Sign clearly prohibits bicycles and instructs people to stay out of restricted or hazardous areas.
• Prevents bicycle access and reinforces the instruction to stay out
• Suitable for construction sites, private land, industrial zones and restricted pathways
• Bold colours, symbols and text provide high visibility and immediate understanding
• Available in Aluminium Composite (3mm), Rigid Plastic (1mm), Rigid Plastic 1mm (Self Adhesive Back), Rigid Plastic (2mm), Rigid Plastic 2mm (Self Adhesive Back) and Self Adhesive Vinyl
• Helps reinforce site safety rules and restrict bicycle access to designated areas
£12.91