Site Safety Helmets Must Be Worn Sign
Clearly instructs that safety helmets must be worn on site to protect workers and visitors from head injuries.
- Ensures mandatory use of safety helmets in hazardous areas
- Ideal for construction sites, industrial facilities, and active work zones
- Bold colours and clear symbols provide excellent visibility and understanding
- Available in durable materials suitable for long-term indoor and outdoor use
- Reinforces site safety rules and reduces risk of head injuries

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Product Overview
This multi-message site safety sign clearly states that safety helmets must be worn, helping to protect individuals from head injuries in hazardous environments. It also includes additional mandatory PPE instructions such as protective footwear and high visibility clothing, along with a prohibition message restricting unauthorised access. Designed with bold colours and universally recognised symbols, it ensures clear communication of essential safety requirements across busy work sites.
Where to Use
- Construction sites
- Industrial workplaces
- Warehouses and distribution centres
- Building and maintenance areas
- Restricted access zones
Key Features
- Clear “Safety helmets must be worn” instruction
- Includes additional PPE requirements for full site safety
- Recognisable symbols for quick understanding
- High-visibility design for busy environments
- Supports enforcement of workplace safety rules
Materials & Options
- 1mm Rigid Plastic
- 3mm Aluminium Composite Board
- 4mm Recyclable Corex
- 3mm Aluminium Composite Board (Post Mounted)
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?
This sign should be displayed at site entrances and key access points where personal protective equipment is required.
Is this sign suitable for outdoor use?
Yes, when manufactured in appropriate materials such as rigid plastic, aluminium composite, or Correx, it is suitable for outdoor use.
What does this sign indicate?
It indicates that safety helmets must be worn and highlights additional PPE requirements and access restrictions on site.
Returns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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