Warning - Construction Site Safety Signs

Warning - Construction Site Safety Signs by Caledonia Signs - Trade Only Supplier

Warning signs on construction sites are essential for protecting workers, visitors, and the general public from potential hazards. These signs alert individuals to dangers such as falling objects, open trenches, electrical risks, moving machinery, or hazardous substances. By clearly identifying these risks, warning signs help prevent accidents and injuries, ensuring that everyone on-site remains aware and vigilant. In environments where conditions can change rapidly, having visible, up-to-date warnings is critical to maintaining a safe working environment.

These signs are also an important part of meeting legal and regulatory requirements. Occupational health and safety laws in many countries mandate the use of specific warning signs to highlight dangers and enforce safety protocols. Failure to provide proper warning signage can result in legal consequences, project delays, fines, or increased liability in the event of an incident. By displaying the correct warning signs, construction companies not only comply with regulations but also show their commitment to maintaining a safe work environment.

Warning signs serve as constant reminders of site-specific risks, reinforcing safety training and protocols that workers may already know but could forget in the rush of daily tasks. For new workers, subcontractors, or visitors unfamiliar with the site, these signs are especially valuable in quickly communicating where caution is needed. Their presence can influence safer behaviour, reduce human error, and lower the likelihood of dangerous situations developing due to ignorance or carelessness.

In addition to protecting individuals, warning signs help safeguard expensive equipment, ongoing work, and the integrity of the construction site itself. Preventing unauthorised access to hazardous zones, for example, can reduce damage and minimize costly delays. Ultimately, warning signs are a low-cost but highly effective tool in risk management and safety culture, playing a key role in ensuring that construction projects are completed without incident and with the well-being of all involved in mind.


Caution - Site Entrance - Banner with Eyelets

Caution - Site Entrance - Banner with Eyelets Safety Signs

Using a Caution – Site Entrance – Banner provides several key benefits for enhancing safety and communication on construction sites or restricted work areas. First, the banner serves as a highly visible warning that alerts everyone entering the site to proceed with caution. Its bold lettering and br..

Scaffold Banner - Danger - Men Working Overhead

Scaffold Banner - Danger - Men Working Overhead Safety Signs

Scaffolding Banners are a vital safety sign option designed to alert workers and visitors to the potential hazard of overhead work occurring on or near scaffolding. Its bold warning message helps raise awareness of the risk of falling objects or materials, encouraging caution in the area below. This..

Danger - Cylinder Storage Area

Danger - Cylinder Storage Area Safety Signs

Gas cylinders should be stored carefully and this sign clearly indicates the location and potential hazards of compressed gas cylinders, advising individuals to take care in that vicinity. Materials Explained Below is a more detailed description of the materials this particular safety sign is ..

Caution - Risk of Extreme Heat - Keep Hydrated and Wear Sun Protection

Caution - Risk of Extreme Heat - Keep Hydrated and Wear Sun Protection Safety Signs

As global temperatures continue to rise we find ourselves working in ever more extreme conditions. When temperatures soar, remind staff and visitors of the risk and to drink plenty of water and use UV barrier creams where necessary. Materials Explained Below is a more detailed description of t..

Warning - Strong Winds

Warning - Strong Winds Safety Signs

Strong winds can sweep people on or in the water away from the shore. Remind visitors of the importance to take care when going out on, or into, the water when there are strong winds. Materials Explained Below is a more detailed description of the materials this particular safety sign is available..

Danger - Men Working Overhead - Roll Top Sign

Danger - Men Working Overhead - Roll Top Sign Safety Signs

Using a Danger - Men Working Overhead Roll Top Sign is crucial for maintaining workplace safety, particularly in construction zones, warehouses, and industrial sites. These signs provide a highly visible warning to passersby, employees, and site visitors that work is being carried out above them. Th..

Warning - Construction Site - Keep Out - Roll Top Sign

Warning - Construction Site - Keep Out - Roll Top Sign Safety Signs

Control access and enhance hazard awareness in active construction zones with this roll top sign. Its bold message and clear visibility are critical in preventing unauthorised entry, which can lead to serious accidents or legal issues. The sign serves as an immediate visual cue to alert the public a..

Caution - Construction Traffic - Banner with Eyelets

Caution - Construction Traffic - Banner with Eyelets Safety Signs

A Caution - Construction Traffic Banner with Eyelets is used to warn drivers, pedestrians, and workers about the presence of construction vehicles entering or operating in a specific area. It serves as a clear visual alert in zones where construction traffic may pose safety risks, helping to reduce ..

Warning - Fragile Roof - Roll Top Sign

Warning - Fragile Roof - Roll Top Sign Safety Signs

Alert workers, contractors, and visitors to the presence of a fragile or delicate roof surface that may not support weight safely. This sign is especially important in construction, maintenance, and roofing sites where stepping on certain roof areas could lead to falls or structural damage. Designed..

Caution - Loading Area - No Parking

Caution - Loading Area - No Parking Safety Signs

Loading bays can be very busy areas for logistics companies, warehouses and production facilities. Large vehicles, pedestrians, raised / uneven work surfaces, high noise levels, heavy loads and blind spots make loading bays extremely high-risk environments. This loading bay sign reminds viewers ..

Warning - Exclusion Zone - No Unauthorised Admittance - Zone ID and Contact

Warning - Exclusion Zone - No Unauthorised Admittance - Zone ID and Contact Safety Signs

There are many very busy areas within businesses such as construction sites, logistics companies, warehouses and production facilities. Large vehicles, pedestrians, raised / uneven work surfaces, high noise levels, heavy loads and blind spots are just a number of hazards which make these areas extr..

Warning - Restricted Zone - No Unauthorised Personnel - Zone ID and Contact

Warning - Restricted Zone - No Unauthorised Personnel - Zone ID and Contact Safety Signs

There are many very busy areas within businesses such as construction sites, logistics companies, warehouses and production facilities. Large vehicles, pedestrians, raised / uneven work surfaces, high noise levels, heavy loads and blind spots are just a number of hazards which make these areas extre..

Caution - Loading Bay - Maximum SWL

Caution - Loading Bay - Maximum SWL Safety Signs

Loading bays can be very busy areas for logistics companies, warehouses and production facilities. Large vehicles, pedestrians, raised / uneven work surfaces, high noise levels, heavy loads and blind spots make loading bays extremely high-risk environments. This loading bay sign reminds viewers ..

Danger - Asbestos - No Unauthorised Persons - No Smoking - Eating or Drinking

Danger - Asbestos - No Unauthorised Persons - No Smoking - Eating or Drinking Safety Signs

This multi-message sign provides multiple safety messages to warn viewers of an asbestos hazard and the actions (prohibition) that are prohibited whilst working in the area. This sign states: ASBESTOS AREA - Danger, Asbestos - No unauthorised persons beyond this point - No smoking - No eating or ..

Danger - Asbestos - No Unauthorised Persons - No Smoking - Eating or Drinking - Approved Respirator

Danger - Asbestos - No Unauthorised Persons - No Smoking - Eating or Drinking - Approved Respirator Safety Signs

This multi-message sign provides multiple safety messages to warn viewers of an asbestos hazard plus the actions (prohibition) that are prohibited and the actions (mandatory) that must be adhered to whilst working in the area. This sign states: ASBESTOS AREA - Danger, Asbestos - No unauthorised p..

Respirator Zone - Danger - Asbestos - No Unauthorised Persons - No Smoking - Eating or Drinking

Respirator Zone - Danger - Asbestos - No Unauthorised Persons - No Smoking - Eating or Drinking Safety Signs

This multi-message sign provides multiple safety messages to warn viewers of an asbestos hazard and the actions (prohibition) that are prohibited whilst working in the area. This sign states: RESPIRATOR ZONE - Danger, Asbestos - No unauthorised persons beyond this point - No smoking - No eating o..

A4 Warning - Construction Site

A4 Warning - Construction Site Safety Signs

This handy A4 size sign advises viewers that there is a construction site. Further safety signs should be used to ensure safety on site is adhered to. Materials Explained Below is a more detailed description of the materials this particular safety sign is available in. Helping you decide which sign..

Danger - Men At Work

Danger - Men At Work Safety Signs

A vital safety warning used to notify people that workers are actively engaged in potentially hazardous activities nearby. This sign is commonly placed in construction zones, roadworks, maintenance sites, or any area where manual labor or machinery operation might pose risks to both the workers and ..

Danger - Men Working Overhead

Danger - Men Working Overhead Safety Signs

Alert people that work is being carried out above ground level, such as on scaffolding, roofs, bridges, or elevated platforms. This sign warns of potential hazards like falling tools, debris, or materials, which could cause serious injury to anyone passing below. It emphasises the need for heightene..

Danger - Men Working Below

Danger - Men Working Below Safety Signs

An essential safety warning that alerts people to the presence of workers performing tasks beneath a certain area, such as under scaffolding, elevated platforms, bridges, or construction zones. This sign warns passersby or operators above to exercise caution to avoid dropping tools, materials, or de..

Danger - Deep Excavations

Danger - Deep Excavations Safety Signs

Used to alert people to the presence of large or deep holes, trenches, or pits in the ground, which pose serious risks such as falls, cave-ins, or entrapment. Deep excavations are common in construction, utility works, and landscaping projects, where the ground is dug out for foundations, pipelines,..

Caution - Out of Order

Caution - Out of Order Safety Signs

A straightforward but important notice used to inform people that a piece of equipment, machinery, or facility is currently not functioning properly and should not be used. This sign helps prevent accidents, damage, or inconvenience that could arise from attempting to use something that is broken, u..

Warning - Battery Charging in Progress

Warning - Battery Charging in Progress Safety Signs

An important safety notice used to alert people that batteries are currently being charged in the area. Battery charging, especially for industrial or vehicle batteries like those in forklifts or electric vehicles, involves electrical currents that can pose risks such as electric shock, fire hazards..

Caution - Arc Welding

Caution - Arc Welding Safety Signs

Alert people that arc welding operations are taking place nearby. Arc welding involves intense electrical currents and produces bright, ultraviolet light, sparks, and hot metal fumes, all of which can pose serious risks such as burns, eye damage, fire hazards, and inhalation of harmful gases. This s..

Danger - Test Area

Danger - Test Area Safety Signs

Used to indicate that a location is restricted due to testing activities that present potential hazards. It warns people that they are entering an environment where safety risks exist and that only authorised, trained individuals should proceed. Such areas are often part of research facilities, indu..

Danger - Quarry Workings

Danger - Quarry Workings Safety Signs

Warn people about the hazardous conditions present in or near an active quarry site. Quarry areas often involve heavy machinery, unstable ground, deep pits, blasting operations, and falling rocks, all of which pose serious risks to anyone entering without proper knowledge or authorisation. The prim..

Warning - Hazardous Area

Warning - Hazardous Area Safety Signs

Alert people that they are approaching or entering a zone where dangers exist that could cause injury or harm. This general warning is often applied in environments where multiple risks are present, such as chemical storage, construction sites, manufacturing plants, or areas with heavy machinery. T..

Danger - Men Working On Plant

Danger - Men Working On Plant Safety Signs

Warn people that workers are carrying out maintenance, repairs, or operations on heavy machinery or industrial equipment (often referred to as “plant”). This sign alerts passersby and other employees to the presence of personnel in potentially hazardous areas where machinery might be active or in a ..

Warning - Stand Clear of Suspended Loads

Warning - Stand Clear of Suspended Loads Safety Signs

Alert people that heavy objects are being lifted or carried overhead by cranes, hoists, or other lifting equipment. This warning is critical to prevent injuries caused by falling or swinging loads, which can cause serious harm or even fatalities. The main purpose of the sign is to keep individuals ..

Caution - Hot Contents

Caution - Hot Contents Safety Signs

This warning safety sign advises viewers that the contents of the designated area / item is hot. Materials Explained Below is a more detailed description of the materials this particular safety sign is available in. Helping you decide which sign option is most suitable for your application. ..

Warning - Moving Parts may cause Hand Crush Injuries

Warning - Moving Parts may cause Hand Crush Injuries Safety Signs

This warning safety sign advises viewers that a machineries moving parts may cause hand crush injuries. Materials Explained Below is a more detailed description of the materials this particular safety sign is available in. Helping you decide which sign option is most suitable for your applicat..

Danger - Demolition Work in Progress

Danger - Demolition Work in Progress Safety Signs

This “Danger – Demolition Work in Progress” sign is used to warn people that an area is undergoing demolition activities, which can pose severe hazards such as falling debris, unstable structures, dust, noise, and the operation of heavy machinery. It communicates that the site is unsafe for unauthor..

Warning - Construction Site - Keep Out

Warning - Construction Site - Keep Out Safety Signs

Alert people that they are approaching a hazardous construction zone and that unauthorized entry is strictly prohibited. Construction sites present numerous risks, including moving machinery, falling materials, uneven ground, open excavations, and other dangers that may not be immediately visible to..

Warning - Look Out for Overhead Loads

Warning - Look Out for Overhead Loads Safety Signs

Essential for alerting people to the danger of objects being lifted or suspended above ground level. Overhead loads, such as cranes carrying materials, hoists, or suspended equipment, pose a significant risk of injury or fatality if they fall or swing unexpectedly. The sign acts as a proactive warni..

Caution - Refurbishment in Progress No Unauthorised Entry

Caution - Refurbishment in Progress No Unauthorised Entry Safety Signs

Alert people that refurbishment or renovation work is taking place in a specific area and that access is restricted. Its primary purpose is to ensure safety by clearly communicating that only authorized personnel should enter, as the environment may contain hazards such as tools, machinery, debris, ..

Danger - Scaffolding Incomplete

Danger - Scaffolding Incomplete Safety Signs

Warn workers, contractors, and visitors that a scaffolding structure is not yet fully erected or safe for use. Its primary purpose is to prevent accidents, falls, or structural failures by clearly indicating that the scaffold should not be climbed or used until completion and proper inspection. The ..

Danger - Open Manhole

Danger - Open Manhole Safety Signs

Warn workers, pedestrians, and visitors of the presence of an uncovered or partially open manhole. Its primary purpose is to prevent accidents, such as falls, trips, or injuries, by clearly indicating a serious hazard in the area. This sign is typically placed around the perimeter of the open manho..

Warning - Overhead Crane

Warning - Overhead Crane Safety Signs

This Warning – Overhead Crane sign is used to alert personnel and visitors that an overhead crane is in operation in the area. Its primary purpose is to warn people of potential hazards from moving loads, crane hooks, or suspended equipment, helping to prevent accidents, injuries, or property damage..

Danger - Falling Objects

Danger - Falling Objects Safety Signs

Warn workers, visitors, and the public of the risk of objects falling from above. Its primary purpose is to prevent injuries by alerting people to areas where overhead work, loading operations, or unsecured materials could result in objects dropping onto personnel below. This sign is typically plac..

Danger - Falling Hazard - Fall Arrest Equipment Must be Worn

Danger - Falling Hazard - Fall Arrest Equipment Must be Worn Safety Signs

This Danger – Falling Hazard – Fall Arrest Equipment Must Be Worn sign is used to warn personnel of areas where there is a significant risk of falling from height, such as roofs, elevated platforms, scaffolding, or open edges. Its primary purpose is to ensure that anyone working in the area uses pro..

Warning - Beware of Moving Vehicles

Warning - Beware of Moving Vehicles Safety Signs

Used to alert pedestrians, workers, and visitors to the presence of vehicles operating in an area. Its primary purpose is to prevent accidents and injuries by making people aware of the potential danger from forklifts, trucks, construction vehicles, or other moving machinery. This sign is typically..

Warning - Site Traffic

Warning - Site Traffic Safety Signs

This Warning – Site Traffic signs are important because they inform workers, visitors, and pedestrians about the presence of moving vehicles within a site. Their primary purpose is to reduce the risk of accidents, collisions, and injuries by making people aware that vehicles, such as trucks, forklif..

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Why get safety signs printed by Caledonia Signs?

Why get safety signs printed by Caledonia Signs?

1. Regulatory Compliance One of the primary reasons to have safety signs professionally printed is to ensure compliance with UK laws. The Health and Safety (Safety Signs and Signals) Regulations 1996 require that specific safety signs be used in workplaces to prevent accidents and injuries. Caledonia Signs understand these requirements and ensure your signs meet legal standards, including adherence to the BS EN ISO 7010 format for safety symbols. Adhering to the BS EN ISO 7010 format is crucial because it ensures safety signs are universally recognised and understood. The standard uses clearly defined symbols that have been tested for visibility and comprehension, making them effective even in high-stress situations or for individuals who do not speak the local language. This helps prevent accidents by enabling quick and correct responses to potential hazards. Many "pop up printers" don't fully understand the importance of ISO 7010. From a legal standpoint, compliance with ISO 7...>>> READ MORE >>>

Why you should work with Caledonia Signs

Why you should work with Caledonia Signs

Caledonia Signs are the number one choice for trade As a market leading UK supplier of safety signs, we provide our distributors with a vast range of innovative, cost effective and premium signs. Additionally, we offer a number of sales, marketing and technical support packages to help our distributors maximise their sales opportunities. Unlike many of our competitors, we manufacture only for sale through our distributor network. Caledonia Signs will never approach your customer base directly. Caledonia are committed to help our distributors maximise their sales opportunities We help our distributors in innovative ways and by being driven to provide the highest quality services. Caledonia Signs provide a online portal where our distributors can sign in, view cost and RRP pricing of all products, download marketing material and product data sheets, raise and instantly send purchase orders for us to process, and view your order history. We also provide workplace a...>>> READ MORE >>>

Signage Solutions: Avian Influenza & Animal Disease Control

Signage Solutions: Avian Influenza & Animal Disease Control

Take action! New signage to help prevent the spread of bird flu outbreaks across the UK With a growing number of reports relating to avian influenza outbreaks across the UK, biosecurity and disease prevention have become a growing concern for many businesses - particularly those in the farming, agriculture, and park / recreation industries. Although transmission to humans is currently low and primarily involves people in frequent contact with birds and poultry, it is important to be aware of the risks and to take the necessary precautions to minimise those risks. Inside is a range of signs and products which can help educate, inform and advise, and to encourage best practice in terms of hygiene and safety. Avian Influenza primarily affects birds, however some strains can infect other animals, including domestic pets such as cats and dogs, especially if they come into contact with infected birds or contaminated environments. Exposure to environments contaminated wit...>>> READ MORE >>>

Stress Awareness Month

Stress Awareness Month

Stress Awareness Month: Leading with Love and Support With Stress Awareness Month fast approaching, now is the perfect time to remind our distributors of the wide range of health and wellbeing posters we offer. These resources are designed to reduce stigma and encourage healthier lifestyles and workplaces. Whether you’re in the fire and security industry or a PPE supplier, Caledonia believes that fostering inclusion and understanding in staff rooms, site offices, or waiting areas is crucial. These spaces can become catalysts for important conversations, inspiring both staff and the public to take simple steps to improve their well-being. Stress in the UK: A Growing Concern Stress is a significant issue across the UK, with 74% of people reporting that stress has made them feel overwhelmed and unable to cope (YouGov, 2018 for the Mental Health Foundation). Stress Awareness Month is a time to acknowledge the profound impact stress can have on our lives and, just as imp...>>> READ MORE >>>