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
Hazard Warning Signs
Workplace Warning Signs
Workplace Warning Signs
Industry Warning Signs
Industry Warning Signs
Overhead & Head Clearance Signs
Overhead & Head Clearance Signs
Construction & Site Safety Signs
Construction & Site Safety Signs
Roof & Height Safety Signs
Roof & Height Safety Signs
Compressed gas GHS label sticker with gas cylinder symbol in red diamond

Compressed Gas Label Sticker

Indicates compressed gas hazards using a recognised symbol for clear identification.
• Alerts people to the presence of compressed gas cylinders
• 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
£1.35
Warning Mud On Road Sign

Warning Mud On Road Sign

Warning Mud On Road Sign clearly alerts drivers, workers and visitors to muddy road surfaces and encourages caution around areas where vehicles may encounter mud hazards.
• Warns of mud on the road and helps reduce the risk of skidding, loss of traction and vehicle accidents.
• Ideal for construction sites, farm entrances, site access roads, rural routes and areas with frequent vehicle movements.
• High-visibility yellow background with bold black lettering and a recognised warning triangle provides clear recognition.
• Available in Rigid Plastic (1mm), Self Adhesive Vinyl and Recyclable Correx ® (4mm).
• Helps improve driver awareness and encourages safer vehicle movement around muddy roads and site entrances.
£8.50
Danger Asbestos Approved Respirators Must Be Worn Sign with mandatory respiratory protection symbols

Danger Asbestos Approved Respirators Must Be Worn Sign

Clearly warns people of asbestos hazards and instructs them to wear approved respirators and obtain a permit to work before entering hazardous areas.
• Warns of asbestos hazards and instructs that approved respirators must be worn
• Suitable for construction sites, industrial premises, refurbishment areas and asbestos risk environments
• High-contrast warning colours, bold symbols and clear wording provide strong visibility
• 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 respiratory protection and permit-to-work requirements in asbestos hazard areas
£5.72
Danger Live Busbars Electrical Warning Sign

Live Busbars Electrical Sign

Clearly warns people of dangerous live busbars to help reduce the risk of serious injury from accidental contact with electrical components.
• Alerts people to the presence of live busbars and associated electrical hazards
• Suitable for electrical rooms, substations and industrial sites
• High-visibility 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 electrical safety awareness and reduce accidental contact with live components
£2.26
Danger Explosive Atmosphere EX ATEX Category 1 safety sign with recognised EX hazard symbol

Danger Explosive Atmosphere Sign - EX Atex Category 1

Warn staff and visitors of explosive atmosphere hazards in ATEX Category 1 areas with this highly visible danger safety sign.
• Alerts individuals to the presence of a potentially explosive atmosphere
• Ideal for hazardous zones, industrial sites, refineries and chemical plants
• High-visibility yellow and black design for 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 improve awareness of explosive atmosphere risks and supports safe working practices
£2.26
Danger Asbestos Zone Respirator Sign

Danger Asbestos Zone Respirator Must Be Worn Sign

Danger Asbestos Zone Respirator Must Be Worn Sign clearly warns workers and contractors of asbestos hazards and instructs personnel to wear respiratory protection in designated areas.
• Warns of asbestos hazards and reinforces mandatory respirator requirements to help prevent harmful exposure.
• Ideal for construction sites, demolition projects, asbestos removal areas, refurbishment works and restricted hazardous zones.
• High-contrast yellow warning and blue mandatory panels with bold lettering and clear symbols provide excellent visibility.
• Available in Rigid Plastic (1mm), Rigid Plastic 1mm (Self Adhesive Back), Rigid Plastic (2mm), Rigid Plastic 2mm (Self Adhesive Back), Self Adhesive Vinyl and Recyclable Correx ® (4mm).
• Helps reinforce respiratory protection procedures and improve awareness of asbestos-related hazards in controlled work areas.
£5.72
Danger Loose Rocks Stay Away Sign with falling rocks warning and stay out instruction

Danger Loose Rocks Stay Away Sign

Danger Loose Rocks Stay Away Sign clearly warns of loose or falling rocks and instructs people to keep away from the hazardous area.
• Alerts people to the danger from loose or falling rocks and reinforces the instruction to stay out
• Suitable for quarries, construction sites, cliffs and unstable terrain
• High-contrast symbols and bold text provide strong visibility and clear 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 reduce the risk of accidents by clearly identifying areas affected by loose rocks
£10.76
Warning Construction Activities In Progress safety sign

Warning Construction Activities In Progress Sign


Alerts people to active construction work and helps reduce the risk of accidents in busy work areas.
• Warns staff, visitors and contractors that construction activities are taking place
• Suitable for construction sites, industrial facilities, workplaces and maintenance areas
• Bold yellow warning design with clear black text for strong visibility
• Available in Rigid Plastic (1mm), Rigid Plastic (2mm), Self Adhesive Vinyl and Recyclable Correx ® (4mm)
• Helps promote awareness and safer movement around active work zones
£8.50
Curve Top Danger Men Working Overhead safety warning sign

Curve Top Danger Men Working Overhead Sign

Warn individuals of overhead work activity and falling object hazards with this highly visible danger safety sign.
• Clearly warns of workers operating above
• Suitable for construction sites, maintenance areas, and scaffolding zones
• High-visibility yellow and black design ensures quick recognition
• Available in Aluminium Composite (3mm)
• Helps prevent accidents and promotes safer site awareness
£28.58
Danger 230 Volts Electrical Warning Sign

Danger 230 Volts Electrical Sign

Clearly warns people of a dangerous 230 volt electrical hazard to help reduce the risk of electric shock, serious injury or fatal accidents.
• Alerts people to the presence of a dangerous 230 volt electrical hazard
• Suitable for workplaces, plant rooms and electrical areas
• High-visibility 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 electrical safety awareness and reduce the risk of electrical accidents
£2.26
Danger Explosive Atmosphere EX ATEX Category 2 safety sign with recognised EX hazard symbol

Danger Explosive Atmosphere Sign - EX Atex Category 2

Warn staff and visitors of explosive atmosphere hazards in ATEX Category 2 areas with this highly visible danger safety sign.
• Clearly identifies areas where explosive atmospheres may occur
• Suitable for industrial sites, factories and hazardous zones
• High-visibility yellow and black design for 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 maintain ATEX compliance and improve workplace safety awareness
£2.26
Danger Asbestos Hazard Sign with yellow and black warning symbol

Danger Asbestos Hazard Sign

Danger Asbestos Hazard Sign clearly warns people of the presence of hazardous asbestos materials to help prevent exposure and disturbance.
• Alerts people to the presence of an asbestos hazard
• Suitable for construction sites, refurbishment areas and industrial premises
• High-contrast yellow and black design provides strong visibility and 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 asbestos hazard awareness and safer site management
£2.26