Workplace Warning Signs

Workplace Warning Signs help alert employees, visitors and contractors to potential hazards within the working environment. Using recognised warning symbols and clear messaging, these signs highlight risks that could cause injury, illness or property damage if appropriate precautions are not taken.

Also known as hazard warning signs, safety warning signs or workplace hazard signs, they are commonly used across factories, warehouses, construction sites, workshops, schools, healthcare facilities and commercial premises.

Typical installation locations include machinery areas, loading bays, electrical rooms, chemical storage facilities, plant rooms, pedestrian routes and other locations where workplace hazards need to be clearly identified.

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

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Subcategories

Forklift Warning Signs
Slippery Floor Signs
Mind Your Head Signs
Trip Hazard Signs
Temporary Warning Signs
Safety Helmets Must Be Worn On This Site mandatory safety sign

Safety Helmets Must Be Worn On This Site Sign

Clearly instruct workers and visitors that safety helmets must be worn on site to reinforce mandatory head protection requirements.
• Enforces the requirement for workers and visitors to wear safety helmets on site
• Suitable for construction sites, industrial areas and building zones
• Clear blue and white design provides high visibility and quick 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 mandatory head protection requirements across the site
£2.71
High Visibility Clothing Must Be Worn In This Area Sign with mandatory high visibility clothing symbol

High Visibility Clothing Must Be Worn In This Area Sign

Clearly instructs workers and visitors that high visibility clothing must be worn in designated areas to reinforce mandatory PPE requirements.
• Instructs personnel to wear high visibility clothing in designated areas
• Suitable for construction sites, warehouses, loading bays and car parks
• Bold blue and white design provides clear visibility and quick 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 PPE requirements in high traffic and low visibility environments
£4.88
Safety Helmets Must Be Worn In This Area mandatory safety sign

Safety Helmets Must Be Worn In This Area Sign

Clearly instruct workers and visitors that safety helmets must be worn in designated areas to support effective head protection.
• Instructs workers and visitors that safety helmets must be worn
• Suitable for construction sites, industrial zones and hazardous work areas
• Bold blue and white design provides clear visibility and instruction
• 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 head protection requirements and support a safer workplace
£6.86
Sound Horn mandatory safety sign with horn symbol

Sound Horn Sign

Improve vehicle and workplace safety with this highly visible Sound Horn sign.
• Instructs drivers and operators to sound their horn at designated points
• Ideal for construction sites, warehouses, blind corners, and industrial areas
• Bold blue and white design ensures strong visibility and quick recognition
• Available in Rigid Plastic (1mm), Rigid Plastic (2mm), Self Adhesive Vinyl, and Recyclable Correx ® (4mm)
• Helps improve awareness and reduce accidents in high-risk traffic areas
£14.77
Warning Men Working Overhead safety warning sign

Warning Men Working Overhead Sign


Warn individuals of overhead work hazards with this highly visible warning safety sign designed to improve workplace safety awareness.
• Alerts people to overhead work hazards
• Suitable for construction sites, warehouses, and industrial areas
• High-visibility yellow background with bold black text and symbol
• Available in Rigid Plastic (1mm), Rigid Plastic (2mm), and Self Adhesive Vinyl
• Helps maintain safety awareness in active work zones
£8.10
Sound Horn Drive Slowly Sign with white horn symbol on blue background

Sound Horn Drive Slowly Sign

Instructs drivers to sound their horn and reduce speed in designated areas, helping improve vehicle safety and awareness.
• Instructs drivers to sound their horn and drive slowly in designated areas
• Suitable for construction sites, industrial yards, warehouses and blind corners
• Bold blue and white design with a clear horn symbol provides excellent 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 reduce accidents and improve safety in high-risk vehicle movement areas
£2.71
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
Warning Overhead Hazard Sign with overhead hazard symbol and yellow and black design

Warning Overhead Hazard Sign

Clearly warns people of potential overhead hazards and falling object risks, encouraging extra care to help reduce the risk of injury.
• Alerts people to overhead hazards and falling object risks
• Suitable for workplaces, warehouses, maintenance zones and industrial sites
• High-visibility yellow and black design provides clear warning and quick 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 safety awareness and reduce the risk of head injuries in hazardous areas
£2.71
Warning Overhead Crane Sign with suspended load symbol and yellow and black design

Warning Overhead Crane Sign

Clearly warns people of overhead crane operations and suspended load hazards to help reduce the risk of injury in lifting areas.
• Alerts people to overhead crane operations and suspended load hazards
• Suitable for factories, warehouses and industrial sites
• High-contrast yellow and black design provides clear visibility and quick 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 and reduce the risk of injury from suspended loads
£6.86
Warning Falling Objects safety warning sign

Warning Falling Objects Sign


Warn individuals of potential overhead falling object hazards with this highly visible warning safety sign.
• Alerts people to falling object dangers from above
• Suitable for construction sites, warehouses, and industrial areas
• High-visibility yellow and black design ensures clear recognition
• Available in Rigid Plastic (1mm), Rigid Plastic (2mm), Self Adhesive Vinyl, and Recyclable Correx ® (4mm)
• Helps maintain workplace safety and hazard awareness
£10.81
Danger High Voltage Cables Overhead electrical warning sign with electrical hazard symbol

Danger High Voltage Cables Overhead Electrical Sign

Warn staff, contractors and visitors of dangerous overhead high voltage cables with this highly visible electrical hazard sign.
• Alerts people to the presence of overhead high voltage cables
• Suitable for construction sites, industrial areas and utility 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 reduce the risk of accidental contact with live electrical cables
£6.86
Danger Overhead Cables Electrical Sign with electrical hazard symbol and yellow and black design

Danger Overhead Cables Electrical Sign

Clearly warns people of dangerous overhead electrical cables to help reduce the risk of accidental contact with live electrical hazards.
• Alerts people to overhead electrical cable hazards
• Suitable for construction sites, industrial areas and outdoor work zones
• High-contrast yellow and black design provides clear visibility and quick recognition
• 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 improve electrical safety awareness and reduce the risk of accidental contact with live cables
£6.86