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Construction Site Hazard Warning Signs

You need help? What are the best ways to ensure people stay safe? richcontent_idea
Hazardous materials are often present on construction sites and it is essential to warn staff and visitors about them. One of the best ways to do this is using Construction Site Hazard Warning Signs, featuring the widely recognised symbols and messages that will help to ensure those on your site are kept safe.

These warning signs for hazardous substances will help your construction site comply with current legislation. and are available in a variety of sizes, colours and orientations. Browse our selection below and choose the right materials and fixings to ensure you find the perfect sign to suit your needs.

Items 1-36 of 80

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  1. Caution Dangerous Site & Keep Out Multi-Message Signs

    Caution Dangerous Site & Keep Out Multi-Message Signs

    From $23.00 to $57.90
    From $20.25 to $51.08
    Supplied in: Single
  2. Site Safety Signs - All Visitors Report to Site Office

    Site Safety Signs - All Visitors Report to Site Office

    From $10.80 to $68.40
    From $9.45 to $60.29
    Supplied in: Single
  3. PPE Must Be Worn Site Safety Signs

    PPE Must Be Worn Site Safety Signs

    From $10.80 to $68.40
    From $9.45 to $60.29
    Supplied in: Single
  4. Danger Construction Work in Progress, Site Safety Signs

    Danger Construction Work in Progress, Site Safety Signs

    From $10.80 to $68.40
    From $9.45 to $60.29
    Supplied in: Single
  5. Unauthorised Entry To This Site... Site Safety Signs

    Unauthorised Entry To This Site... Site Safety Signs

    From $10.80 to $68.40
    From $9.45 to $60.29
    Supplied in: Single
  6. Multi-Message Site Signs - Warning Construction Site

    Multi-Message Site Signs - Warning Construction Site

    From $10.80 to $68.40
    From $9.45 to $60.29
    Supplied in: Single
  7. Constrution Signs - Caution Trip Hazard

    Constrution Signs - Caution Trip Hazard

    From $0.00 to $68.40
    From $0.00 to $41.67
    Supplied in: Single
  8. Construction Signs - Danger Deep Water

    Construction Signs - Danger Deep Water

    From $0.00 to $68.40
    From $0.00 to $41.67
    Supplied in: Single
  9. Construction Signs - Danger Falling Objects

    Construction Signs - Danger Falling Objects

    From $0.00 to $68.40
    From $0.00 to $41.67
    Supplied in: Single
  10. Construction Signs - Danger of Death

    Construction Signs - Danger of Death

    From $0.00 to $68.40
    From $0.00 to $41.67
    Supplied in: Single
  11. Construction Signs - Hazard/Caution Concealed Entrance

    Construction Signs - Hazard/Caution Concealed Entrance

    From $0.00 to $68.40
    From $0.00 to $41.67
    Supplied in: Single
  12. Constrution Signs - Danger Men Working Below

    Constrution Signs - Danger Men Working Below

    From $0.00 to $68.40
    From $0.00 to $41.67
    Supplied in: Single
  13. Beware Building Sites Are Dangerous Construction Signs

    Beware Building Sites Are Dangerous Construction Signs

    From $0.00 to $68.40
    From $0.00 to $41.67
  14. Construction Signs - Caution Drain Covers Rermoved

    Construction Signs - Caution Drain Covers Rermoved

    From $0.00 to $68.40
    From $0.00 to $41.67
    Supplied in: Single
  15. Construction Signs - Warning Pedestrians Have Priority

    Construction Signs - Warning Pedestrians Have Priority

    From $0.00 to $68.40
    From $0.00 to $41.67
    Supplied in: Single
  16. Construction Signs - Caution Pedestrians Look Both Ways

    Construction Signs - Caution Pedestrians Look Both Ways

    From $0.00 to $68.40
    From $0.00 to $41.67
    Supplied in: Single
  17. Construction Signs - Caution Pedestrians Look Left

    Construction Signs - Caution Pedestrians Look Left

    From $0.00 to $68.40
    From $0.00 to $41.67
    Supplied in: Single
  18. Construction Signs - Caution Pedestrians Crossing

    Construction Signs - Caution Pedestrians Crossing

    From $0.00 to $68.40
    From $0.00 to $41.67
    Supplied in: Single
  19. Construction Signs - Caution Pedestrians Look Right

    Construction Signs - Caution Pedestrians Look Right

    From $0.00 to $68.40
    From $0.00 to $41.67
  20. Construction Signs - Warning Trespassers Will Be...

    Construction Signs - Warning Trespassers Will Be...

    From $0.00 to $68.40
    From $0.00 to $41.67
    Supplied in: Single
  21. Construction Signs - Danger Risk of Asphyxiation

    Construction Signs - Danger Risk of Asphyxiation

    From $0.00 to $68.40
    From $0.00 to $41.67
    Supplied in: Single
  22. Construction Signs - Danger Buried Cables

    Construction Signs - Danger Buried Cables

    From $0.00 to $68.40
    From $0.00 to $41.67
    Supplied in: Single
  23. 8 Message Site Safety Multi-Message Signs

    8 Message Site Safety Multi-Message Signs

    From $15.30 to $68.40
    From $13.49 to $60.29
    Supplied in: Single
  24. Caution Reversing Vehicles Signs

    Caution Reversing Vehicles Signs

    From $6.70 to $50.00
    From $5.04 to $34.38
    Supplied in: Single
  25. Warning Beware of Moving Vehicles Sign

    Warning Beware of Moving Vehicles Sign

    From $14.30 to $55.92
    From $9.32 to $55.92
    Supplied in: Single
  26. Caution Men At Work Reflective Sign

    Caution Men At Work Reflective Sign

    From $46.50 to $50.50
    From $40.75 to $47.32
  27. Construction Signs - Danger Deep Excavations

    Construction Signs - Danger Deep Excavations

    From $11.32 to $68.40
    From $11.32 to $41.67
    Supplied in: Single
  28. Construction Signs - Danger Drop

    Construction Signs - Danger Drop

    From $11.32 to $68.40
    From $11.32 to $41.67
    Supplied in: Single
  29. Construction Signs - Danger Men At Work

    Construction Signs - Danger Men At Work

    From $11.32 to $68.40
    From $11.32 to $41.67
    Supplied in: Single
  30. Construction Signs - Danger Overhead Crane

    Construction Signs - Danger Overhead Crane

    From $11.32 to $68.40
    From $11.32 to $41.67
    Supplied in: Single
  31. Construction Signs - Danger Overhead Hazard

    Construction Signs - Danger Overhead Hazard

    From $11.32 to $68.40
    From $11.32 to $41.67
    Supplied in: Single
  32. Constrution Signs - Warning Fragile Roof

    Constrution Signs - Warning Fragile Roof

    From $11.32 to $68.40
    From $11.32 to $41.67
    Supplied in: Single
  33. Constrution Signs - Warning Sudden Drop

    Constrution Signs - Warning Sudden Drop

    From $11.32 to $68.40
    From $11.32 to $41.67
    Supplied in: Single
  34. Hazard Symbol/Caution Site Entrance Construction Signs

    Hazard Symbol/Caution Site Entrance Construction Signs

    From $11.32 to $68.40
    From $11.32 to $41.67
  35. Construction Signs - Caution Construction Entrance

    Construction Signs - Caution Construction Entrance

    From $11.32 to $68.40
    From $11.32 to $41.67
    Supplied in: Single
  36. Construction Signs - Danger Demolition in Progress

    Construction Signs - Danger Demolition in Progress

    From $11.32 to $68.40
    From $11.32 to $41.67
    Supplied in: Single
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Clear Warnings


Easily understood - All of the Hazard Warning Signs in our range use the widely recognised hazard triangle and also feature eye-catching bold text to explain the nature of the hazard. Most commonly, the image inside the triangle is the standard exclamation mark symbol; an instantly recognisable sign of potential danger. We also offer a large amount of danger signs.

Alternative images, such as those found on our ‘Mind Your Step’ Construction Signs, ‘Danger Deep Water’ Construction Signs and ‘Warning Fragile Roof’ Construction Signs can provide more information on the specific hazard involved.

You can also opt for a multi-message sign that provides further instructions or prohibitions, such as our 'Petrol/No Smoking/No Naked Light' Stanchion Sign, to simultaneous warn of dangers and instruct those nearby of the correct safety procedures to follow.

Inform and Protect


Some people believe the purpose of these signs is to induce fear, but this is incorrect. The real reason behind posting them is to educate and inform of the dangers present on a construction site, so everyone on it is better equipped to adapt to the environment and take steps to prevent accidents from happening.

For example, if a sign tells workers that a platform may collapse if stepped upon, they will know better than to try to do so. Alternatively, if there are sharp objects on the floor, a construction site hazard warning sign can be used to notify them of this, so they can either avoid the area completely or wear Protective Footwear.

It's also not uncommon to for dangerous chemicals, such as explosive gases or inflammable materials, to be present on construction sites. Even something as trivial as leaving equipment on the premises can be a potential source of danger, and Construction Site Hazard Warning Signs serve to remind and enforce safety working practices.

Health and Safety Legislation


In addition to keeping those on your site safe, displaying these signs is a good idea to protect yourself from litigation and ensure you comply with Health & Safety (Safety Signs and Signals) Regulations 1996. For example, if the floor is wet, people walking across that area may slip and injure themselves and demand financial compensation for any injuries sustained.

These types of sign are best used in combination with other signs, such as Construction Site Information Signs. By displaying both types of signs, you're covering all bases. One type of sign explicitly tells people what kind of activities are discouraged while on a construction site, the other tells you what kind of dangers you can expect.

Materials and Fixings


Our signs are built to last and are made from durable materials that adhere to the latest industry standards and regulations. Our vast selection of signs covers the most common type of dangers on a typical construction site. If for any reason you determine none of the products is suitable for your needs, try out our custom sign service and design your own signs down to the very last detail.

Also, check out our Sign Fixings to see what options are available to make sure your signs will stay securely in place no matter where you are planning to display them.