Warning To Public Sign
Warning To Public Sign clearly informs visitors and members of the public that a building site is private property, unauthorised entry is prohibited and parents should warn children of site dangers.
• Warns against unauthorised access, trespassing and playing on building sites.
• Ideal for construction sites, building projects, perimeter fencing, private property and restricted site entrances.
• High-visibility yellow background with bold black lettering provides clear recognition and readability.
• Available in Aluminium Composite (3mm), Aluminium Composite With Fixing Channel (3mm), Rigid Plastic (1mm), Rigid Plastic (2mm), Self Adhesive Vinyl and Recyclable Correx ® (4mm).
• Helps reinforce site access restrictions, parental awareness and safety precautions around hazardous building areas.
Product Overview
The Warning To Public Sign provides a clear safety notice for building sites and private property where unauthorised access and trespassing must be discouraged. Featuring a high-visibility yellow background with bold black lettering, this sign states "WARNING TO PUBLIC" and informs individuals that the building site is private property and unauthorised persons are not allowed. It also includes a liability warning concerning injuries sustained by trespassers and a prominent "NOTICE TO PARENTS" section requesting that parents warn children about the dangers and consequences of trespassing and playing on the site. Its clear, text-based design helps communicate important access restrictions and site safety information to visitors, parents and members of the public. By displaying these warnings at construction site entrances, perimeter fencing and restricted boundaries, the sign helps improve public awareness and discourage unsafe entry into active building areas.
Where to Use
- Construction site entrances and access gates
- Building and property development projects
- Perimeter fencing and temporary site barriers
- Private building sites and restricted property boundaries
- Areas where children and members of the public may approach active construction work
Key Features
- Clear Warning To Public message identifying the building site as private property
- Prominent instruction prohibiting unauthorised persons from entering
- Liability warning concerning injuries sustained by trespassers
- Dedicated Notice To Parents highlighting the dangers of children trespassing and playing on site
- High-contrast yellow background with bold black lettering for strong visibility and readability
Materials & Options
- Aluminium Composite (3mm)
- Aluminium Composite With Fixing Channel (3mm)
- Rigid Plastic (1mm)
- Rigid Plastic (2mm)
- Self Adhesive Vinyl
- Recyclable Correx ® (4mm)
Compliance
This sign supports compliance with UK health and safety regulations, including:
- Health and Safety at Work etc. Act 1974
- Safety Signs and Signals Regulations 1996
Frequently Asked Questions
Where should this sign be installed?
Position the sign at building site entrances, access gates, perimeter fencing, temporary barriers and other boundaries where members of the public may approach restricted construction areas. Ensure the warning is clearly visible before individuals enter the site.
Is this sign suitable for outdoor use?
The sign is available in Aluminium Composite (3mm), Aluminium Composite With Fixing Channel (3mm), Rigid Plastic (1mm), Rigid Plastic (2mm), Self Adhesive Vinyl and Recyclable Correx ® (4mm). Outdoor suitability depends on the selected material, fixing method and installation conditions.
What does this sign indicate?
The sign informs the public that the building site is private property and unauthorised persons are not permitted to enter. It also displays a liability warning and asks parents to warn children about the dangers and consequences of trespassing and playing on the site.
Trade Discounts
Rainbow Safety supplies safety signs to trade professionals across the UK.
Our trade customers include:
- Fire safety service companies
- Fire risk assessors and safety consultants
- Electrical wholesalers
- Facilities management companies
Approved trade customers receive:
- Preferential trade discounts
- Better margins for reselling safety signs
- Marketing support to help you sell more signs
- Access to our full range of safety signs
With the support and marketing tools provided, our sales have grown to over £3,000 per month.
Fire extinguisher servicing margins are not what they used to be, so supplying safety signs has become a valuable additional revenue stream for our business. On one warehouse safety survey alone we invoiced £5,100 on a single order.
We can now compete with internet prices and still make a healthy margin.
We were regularly asked to supply safety signs, but struggled to compete with internet prices while maintaining a worthwhile margin.
Working with Rainbow Safety has changed that. We can now offer our customers a competitive range of safety signs while still making a healthy margin for our business.
Loyalty Rewards
Rainbow Safety rewards regular customers across the UK who order safety signs on an ongoing basis.
- Schools and colleges
- Facilities management companies
- Contractors and maintenance teams
- Offices and commercial premises
- Preferential pricing for regular customers
- Free design service for custom safety signs
- Access to exclusive promotional offers
- Dedicated account manager if required
“Rainbow Safety has become our go-to supplier for safety signs.”
We regularly need safety signs for maintenance work, refurbishments and ongoing compliance updates. Since ordering from Rainbow Safety, the process has been straightforward, reliable and cost-effective.
The loyalty rewards and special offers have helped us save money across repeat orders, while the wide product range means we can usually source everything we need in one place.
Fast ordering, consistent quality and ongoing rewards have made Rainbow Safety a valuable supplier for our business.
Reviews
Fixed the plastic sign with cable ties near an access point. Solid build quality and still sticks out well from a distance—even on overcast days. Feels properly professional.
Went for the Correx board on a temporary barrier. Light enough to shift as needed, and the print hasn’t blurred or bent. Does exactly what’s expected.
Used the self-adhesive vinyl on site hoarding. Holding tight even with dust and grit around. Clear and bold—cuts through the background clutter nicely.
The rigid plastic version sits well on a fencing post by the gate. Colours still pop despite a few heavy showers. Looks serious enough to keep the public back.