Construction Site Warning Signs
Caledonia Signs supplies a comprehensive range of construction site warning signs for trade customers and distributors across the UK. Our range includes site warning signs, hazard signs, site entrance signs and construction safety notices for risks such as falling objects, overhead work, unstable structures, excavations, moving vehicles, strong winds, heat and electrical hazards.
Manufactured for use on active construction sites, our warning signage is available in a choice of sizes, materials and fixing options to suit temporary and permanent installations. Many products within the range use recognised safety symbols to provide clear and consistent hazard identification for workers, contractors and visitors.
As a UK manufacturer and trade supplier, Caledonia Signs supports safety suppliers, facilities providers, sign companies and distributors with durable construction warning signage for professional use. Browse the range below to find the correct signs for site entrances, hazardous areas, restricted zones, overhead risks, structural hazards and other construction site dangers.
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 place..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 30 (EDITION 26)
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 pote..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 30 (EDITION 26)
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..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 30 (EDITION 26)
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 ent..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 30 (EDITION 26)
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 a..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 33 (EDITION 26)
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..
Symbol: ISO 7010: W026 - Battery Charging Safety Signs
Catalogue Page: 29 (EDITION 26)
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 li..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 30 (EDITION 26)
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 env..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 30 (EDITION 26)
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..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 121 (EDITION 26)
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 i..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 30 (EDITION 26)
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--..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 30 (EDITION 26)
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 preven..
Symbol: ISO 7010: W015 - Overhead Load Safety Signs
Catalogue Page: 121 (EDITION 26)
Warning - Quarry Workings - Keep Out Safety Signs
Alert people to the hazards associated with active or abandoned quarries. Quarries pose multiple risks, including steep drops, unstable ground, loose ..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 53 (EDITION 26)
Warning - Quarry Workings - No Unauthorised Persons Safety Signs
An essential safety notice used to restrict access to quarry sites and protect both the public and workers from hazards. Quarries present significant ..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 53 (EDITION 26)
Danger - Quarry Workings - Deep Water - No Swimming - Keep out Safety Signs
A critical safety notice designed to prevent accidents at quarry sites where deep water is present. Quarries often contain sudden, steep drops and dee..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 53 (EDITION 26)
Warning - Strong Winds Safety Signs
Alert people to the potential hazards caused by high winds in a specific area. Strong winds can create dangerous conditions, such as falling branches,..
Symbol: ISO 7010: W064 - Strong Winds Safety Signs
Catalogue Page: 33 (EDITION 26)
Danger - People Working Overhead Safety Signs
Alert personnel and visitors that work is being carried out above ground level, where tools, materials, or debris could fall and cause injury. The sig..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 30 (EDITION 26)
Danger - People Working Below Safety Signs
Used to alert personnel, visitors, and vehicle operators that work is being conducted at a lower level or underneath an elevated area. The sign commun..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 30 (EDITION 26)
Danger - People Working On Plant Safety Signs
Used to alert personnel, vehicle operators, and visitors that workers are performing tasks on or around industrial plant machinery, equipment, or vehi..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 30 (EDITION 26)
Warning - People Working Overhead Safety Signs
Inform personnel, visitors, and vehicle operators that work is being carried out above ground level, where tools, materials, or debris could fall and ..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 30 (EDITION 26)
Caution - People Working On Equipment Safety Signs
Highlight to personnel, visitors, and vehicle operators that maintenance, repair, or operational work is being conducted on machinery or equipment in ..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 31 (EDITION 26)
Caution - Hot Contents Safety Signs
Warn individuals that the contents of a container, machine, or surface are hot and could cause burns or injuries. This type of warning is essential in..
Symbol: ISO 7010: W079 - Hot Content Safety Signs
Catalogue Page: 28 (EDITION 26)
Warning - Moving Parts may cause Hand Crush Injuries Safety Signs
Alert personnel to the serious risk of hand injuries caused by machinery or equipment with moving components. It warns that placing hands near or in c..
Symbol: ISO 7010: W024 - Crushing of Hands Safety Signs
Catalogue Page: 29 (EDITION 26)
Danger - Asbestos No Unauthorised Persons Beyond this Point Safety Signs
Clearly identify areas where asbestos-containing materials are present and where only trained, authorised personnel are allowed entry. Asbestos is a h..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 52 (EDITION 26)
Danger - Tipping Exclusion Zone Safety Signs
Warn personnel and visitors that a specific area is designated as a high-risk zone for tipping operations, such as the unloading or dumping of heavy m..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 121 (EDITION 26)
Danger - Hot Works in Progress - No Unauthorised Entry Safety Signs
Alert personnel and visitors that hot work activities such as welding, grinding, cutting, or soldering are taking place in a designated area. Hot work..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 52 (EDITION 26)
Danger - Flammable Storage Area - No Hot Works Permitted Safety Signs
Alert personnel that the area contains flammable materials, chemicals, or liquids, and that any activity that could produce sparks, flames, or heat su..
Symbol: ISO 7010: W021 - Flammable Material Safety Signs
Catalogue Page: 52 (EDITION 26)
Danger - Cylinder Storage Area Safety Signs
Used to alert personnel, visitors, and contractors that a designated area contains gas cylinders, which may be pressurised, flammable, toxic, or other..
Symbol: ISO 7010: W029 - Pressurised Cylinder Safety Signs
Catalogue Page: 27 (EDITION 26)
Caution - Risk of Extreme Heat - Keep Hydrated and Wear Sun Protection Safety Signs
Prolonged exposure to extreme heat can cause dehydration, heat exhaustion, heat stroke, and other heat-related illnesses. The sign serves as a prevent..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 28 (EDITION 26)
Caution - High Noise Level Safety Signs
A Caution High Noise Level sign is used to warn individuals that they are entering an area where sound levels are dangerously high and could pose a ri..
Symbol: ISO 7010: W087 - High Sound Volume Levels Safety Signs
Catalogue Page: 28 (EDITION 26)
Noise Level 85dB(A) Ear Protectors Worn Safety Signs
Used to warn workers and visitors that the noise level in a specific area has reached or exceeds 85 decibels, the threshold at which hearing protectio..
Symbol: ISO 7010: M003 - Wear Ear Protection Safety Signs
Catalogue Page: 33 (EDITION 26)
Noise Level - Ear Protectors Available On Request Safety Signs
Used to inform individuals that the area may have elevated noise levels, and that hearing protection is available if needed, even if it is not mandato..
Symbol: ISO 7010: W087 - High Sound Volume Levels Safety Signs
Catalogue Page: 33 (EDITION 26)
Respirator Zone - Danger - Asbestos - No Unauthorised Persons - No Smoking - Eating or Drinking Safety Signs
Warn individuals about the presence of asbestos, a hazardous material that can cause serious lung diseases when inhaled. The sign clearly communicates..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 52 (EDITION 26)
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..
Symbol: ISO 7010: W015 - Overhead Load Safety Signs
Catalogue Page: 30 (EDITION 26)
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 ..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 53 (EDITION 26)
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 accid..
Symbol: Safety Product
Catalogue Page: 30 (EDITION 26)
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 a..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 30 (EDITION 26)
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..
Symbol: ISO 7010: W015 - Overhead Load Safety Signs
Catalogue Page: 30 (EDITION 26)
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 fro..
Symbol: ISO 7010: W008 - Drop (Fall) Safety Signs
Catalogue Page: 53 (EDITION 26)
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 inj..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 29 (EDITION 26)
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 si..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 30 (EDITION 26)
Caution - Any Person Found Urinating / Use Welfare Facilities Safety Signs
Communicate that inappropriate behaviour, such as urinating on the site, is strictly prohibited and will have serious consequences. Its primary purpos..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 53 (EDITION 26)
Danger - Open Pit Safety Signs
Warn personnel and visitors of the presence of an open pit or excavation, which poses a serious risk of falls, injuries, or entrapment. Its primary pu..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 30 (EDITION 26)
Caution - Loading Area - No Parking Safety Signs
Prevent unauthorised vehicles from parking in active loading zones. Keeping these areas clear ensures smooth movement of forklifts, delivery trucks, a..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 57 (EDITION 26)
Caution - Loading Bay - Maximum SWL Safety Signs
Clearly indicate the Safe Working Load (SWL) limit of a loading bay, dock, or lifting equipment in the area. The SWL represents the maximum weight tha..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 57 (EDITION 26)
Warning - Exclusion Zone - No Unauthorised Admittance - Zone ID and Contact Safety Signs
Clearly mark areas that are strictly off-limits to unauthorised personnel. Exclusion zones are often established around hazardous operations, dangerou..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 57 (EDITION 26)
Warning - Restricted Zone - No Unauthorised Personnel - Zone ID and Contact Safety Signs
Clearly indicate areas with limited access where only authorised personnel are allowed. Including a Zone ID and contact information allows staff, visi..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 57 (EDITION 26)
Danger - Asbestos - No Unauthorised Persons - No Smoking - Eating or Drinking Safety Signs
Warn individuals about the serious hazards associated with asbestos. It clearly communicates that only authorised personnel may enter the area and tha..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 52 (EDITION 26)
Danger - Asbestos - No Unauthorised Persons - No Smoking - Eating or Drinking - Approved Respirator Safety Signs
Warn individuals about the serious hazards posed by asbestos. It communicates that only authorised personnel may enter the area and that strict safety..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 52 (EDITION 26)
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 su..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 30 (EDITION 26)
Warning - Construction Site - Keep Out Safety Signs
Alert people that they are approaching a hazardous construction zone and that unauthorised entry is strictly prohibited. Construction sites present nu..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 53 (EDITION 26)
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 are..
Symbol: ISO 7010: W035 - Falling Objects Safety Signs
Catalogue Page: 30 (EDITION 26)
Danger - People at Work Safety Signs
Used to alert passersby, drivers, and other personnel that work activities are taking place in the area that may pose hazards, such as moving machiner..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 30 (EDITION 26)
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 are..
Symbol: Safety Product
Catalogue Page: 133 (EDITION 26)
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 i..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 127 (EDITION 26)
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 i..
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 127 (EDITION 26)
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 ent..
Symbol: Safety Product
Catalogue Page: 133 (EDITION 26)
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 especi..
Symbol: ISO 7010: W036 - Fragile Roof Safety Signs
Catalogue Page: 127 (EDITION 26)
Danger - People Working Overhead - Roll Top Sign Safety Signs
This highly durable roll top sign has been designed to neatly hook over scaffolding...
Symbol: ISO 7010: W001 - General Warning Safety Signs
Catalogue Page: 127 (EDITION 26)
S.A.F.E.T.Y - Spot - Assess - Find - Evaluate - Terminate - You Are Safe Safety Signs
Designed to promote a structured approach to hazard identification and risk management. This sign provides employees and contractors with a step-by-st..
Symbol: Safety Product
Catalogue Page: 128 (EDITION 26)