Prohibition Signs

Prohibition Signs are used to prevent unsafe behaviour and communicate actions that are not permitted within a workplace or public environment. Also known as no entry signs, forbidden action signs or prohibition safety signs, they help reduce risks by clearly identifying activities that could cause injury, damage or non-compliance.

These signs are widely used by factories, warehouses, construction sites, offices, schools, hospitals, retail premises, contractors and facilities managers to promote safe working practices.

Common installation locations include entrances, restricted areas, hazardous zones, machinery locations, loading bays, fire exits, pedestrian routes and workplace facilities.

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

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Subcategories

No Smoking / No Vaping Signs
No Entry Signs
No Exit Signs
No Access Signs
Machinery Prohibition Signs
No Exit Sign with red prohibition symbol

No Exit Sign

Clearly identifies restricted exit points and helps control movement through designated access areas with a highly visible No Exit Sign.
• Clearly prevents unauthorised exiting through restricted or controlled access points
• Suitable for doors, corridors, restricted zones and controlled access points
• Bold red prohibition symbol and clear text provide excellent 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 site security and supports controlled movement within premises
£2.71
No Entry To Unauthorised Personnel Sign with red prohibition symbol

No Entry To Unauthorised Personnel Sign

Clearly restricts access to authorised individuals and helps prevent unauthorised personnel from entering designated areas.
• Clearly prevents unauthorised personnel from entering restricted areas
• Suitable for construction sites, warehouses, factories and staff-only zones
• Bold red prohibition symbol and clear text provide strong 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 access control, site security and workplace safety
£6.86
This Is A No Smoking Area Sign

This Is A No Smoking Area Sign

Clearly communicate that smoking is prohibited with this highly visible no smoking sign.
• Clearly informs staff, visitors and the public that smoking is not permitted in the area
• Ideal for workplaces, public buildings, entrances, shared spaces and smoke-free environments
• High-contrast prohibition symbol and text provide excellent visibility and instant recognition
• Available in Extra Glow in the Dark Self Adhesive (Class C), Extra Glow in the Dark Rigid Plastic (Class C), Rigid Plastic (1mm), Rigid Plastic (2mm), Self Adhesive Vinyl and Brushed Aluminium (3mm)
• Helps support smoke-free policies and promotes a safer, healthier environment
£2.71
No exit traffic sign with white text on blue background

No Exit Traffic Sign

Clearly inform drivers and pedestrians that there is no exit route with this highly visible No Exit Traffic Sign.
• Warns that there is no vehicle or pedestrian exit beyond the designated point
• Ideal for car parks, industrial estates, private roads, and traffic management areas
• Bold white text on a blue background ensures excellent visibility and recognition
• Available in Aluminium Composite (3mm) and Aluminium Composite With Fixing Channel (3mm)
• Helps reduce vehicle confusion and improve controlled traffic flow
£42.65
Only Authorised Persons May Use This Machine Sign with prohibition symbol

Only Authorised Persons May Use This Machine Sign

Clearly restricts machine operation to authorised personnel, helping prevent unauthorised use and improve workplace safety.
• Clearly states that only authorised persons may use the machine
• Suitable for workshops, factories, warehouses and industrial work areas
• Bold red and white prohibition 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 improve workplace safety and prevent unauthorised machine use
£2.26
Passengers Prohibited Sign with red prohibition symbol

Passengers Prohibited Sign

Clearly indicates that carrying passengers is prohibited to help maintain safe working practices around vehicles and industrial equipment.
• Clearly prohibits the carrying of passengers
• Suitable for vehicles, industrial equipment, warehouses and construction sites
• Bold red and white prohibition 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 workplace safety rules and reduce accident risks
£2.71
No Entry Sign with red prohibition symbol

No Entry Sign

Clearly prohibits unauthorised access to restricted or controlled areas with a highly visible No Entry Sign.
• Prevents unauthorised entry into restricted or controlled access areas
• Suitable for workplaces, construction sites, warehouses and staff-only zones
• Bold red and white prohibition symbol 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 site security, access control and workplace safety
£2.71
No Entry To Unauthorised Personnel Sign with red prohibition symbol

No Entry To Unauthorised Personnel Sign

Clearly restricts access to controlled areas and helps prevent unauthorised personnel from entering designated zones.
• Clearly prevents entry by unauthorised personnel
• Suitable for construction sites, workplaces and restricted access zones
• Bold red and white design provides quick recognition and high 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 4mm Recyclable Correx ®
• Helps improve workplace security, safety awareness and access control
£12.91
No smoking prohibition safety sign

No Smoking Sign

Clearly communicates that smoking is prohibited in the area using a universally recognised no smoking symbol and message.
• Clearly informs people that smoking is not permitted
• Ideal for workplaces, public buildings, entrances and shared indoor areas
• Bold red prohibition symbol ensures instant visibility and recognition
• Available in Extra Glow in the Dark Self Adhesive (Class C), Extra Glow in the Dark Rigid Plastic (Class C), Rigid Plastic (1mm), Rigid Plastic (2mm), Self Adhesive Vinyl and Brushed Aluminium (3mm)
• Helps support smoke-free compliance and reduce fire and health risks
£2.71
Do Not Remove Guards Machinery Sign with red prohibition symbol

Do Not Remove Guards Machinery Sign

Clearly warns against removing safety guards from machinery, helping prevent unsafe operation and improve workplace safety.
• Clearly instructs people not to remove guards from machinery
• Suitable for factories, workshops, warehouses and industrial environments
• Bold red and white prohibition 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 improve machinery safety and reduce the risk of workplace accidents
£2.71
No Entry Without Protective Clothing Sign with red prohibition symbol

No Entry Without Protective Clothing Sign

Clearly informs individuals that protective clothing must be worn before entering designated areas to support PPE compliance and workplace safety.
• Prevents entry without the required protective clothing
• Suitable for factories, warehouses, construction sites and hazardous work areas
• Bold red and white prohibition 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 and workplace safety procedures
£2.71
No Smoking In This Area prohibition sign

No Smoking In This Area Sign

Clearly informs staff, visitors and the public that smoking is prohibited within the specified area to support smoke-free safety and legal compliance.
• Clearly states that smoking is prohibited in this area
• Ideal for workplaces, entrances, public buildings and shared spaces
• Bold prohibition symbol and text ensure instant recognition
• Available in Extra Glow in the Dark Self Adhesive (Class C), Extra Glow in the Dark Rigid Plastic (Class C), Rigid Plastic (1mm), Rigid Plastic (2mm), Self Adhesive Vinyl and Brushed Aluminium (3mm)
• Helps reinforce smoke-free policies and reduce fire risks in indoor environments
£2.71