Danger Signs for Workplaces, Construction Sites & Industrial Premises

Clearly identify serious hazards with our professional range of danger signs, hazard warning signs and industrial safety signage.

Designed for workplaces, construction sites and industrial environments, our signs help communicate risks around electrical hazards, dangerous machinery, hazardous chemicals, confined spaces, restricted areas and other high-risk locations.

Manufactured in Britain and available in self-adhesive vinyl, rigid PVC board and aluminium composite, with options suitable for both indoor and outdoor use.

Workplace & Industrial Danger Signs

Our danger sign range covers many common workplace, construction and industrial hazards where clear visual warnings are required.

Choose the Right Danger Sign Material

Select the material that best suits the mounting surface, location and level of rigidity required.

Why Choose Our Danger Signs?

Where Are Danger Signs Used?

Danger signage is used across commercial, industrial and construction environments where serious hazards need to be identified quickly and clearly.

Electrical Danger & High Voltage Signs

Electrical danger signs and high voltage signs provide clear warnings where dangerous electrical equipment or voltages may be present.

They can be used around switch rooms, substations, electrical cabinets, transformers, distribution equipment and other restricted electrical areas.

High contrast, recognised warning symbols and concise wording help the hazard remain immediately visible.

Machinery Danger Signs

Machinery can present serious hazards including moving parts, crushing risks, entanglement and restricted operating areas.

Machinery danger signs can help warn employees, contractors and visitors about hazardous equipment and areas where additional care or authorised access may be required.

These signs are particularly relevant within factories, engineering workshops, manufacturing plants and industrial premises.

Chemical Hazard & Dangerous Goods Signs

Areas containing hazardous chemicals or dangerous materials should be clearly identified where appropriate.

Our range includes chemical hazard signs, dangerous goods signs and restricted-area warnings for commercial and industrial environments.

These can be used around suitable storage areas, workplaces and controlled locations where clear hazard communication is required.

Asbestos Warning Signs

Where asbestos hazards have been identified and signage is appropriate, clear warning notices can help prevent accidental disturbance and unauthorised access.

Asbestos warning signs can be used as part of site hazard communication within maintenance, construction and managed premises.

Confined Space & Restricted Area Signs

Confined spaces and restricted areas can present serious hazards that may not be immediately visible to someone approaching the location.

Confined space signs and restricted-access danger signs can help clearly identify areas where entry is controlled or where specific precautions may be necessary.

Construction Site Danger Signs

Construction sites can contain multiple changing hazards, from excavations and overhead risks to machinery and restricted work areas.

Our construction danger signs help communicate serious hazards to site workers, contractors, delivery personnel and visitors.

Rigid PVC and aluminium composite options are particularly useful where signage needs to be mounted on hoardings, fences, gates or other suitable site locations.

Overhead Hazard & Excavation Signs

Overhead hazards and excavation areas require clear warning because the risk may affect workers, vehicles and contractors approaching the area.

Suitable overhead danger signs and excavation warning signs can help draw attention to these risks before personnel enter the hazard zone.

Personalised & Custom Danger Signs

Some workplaces require hazard information that is specific to a site, process or piece of equipment.

Selected danger signs can be personalised with custom wording, company information, logos or other relevant details.

This allows standard warning principles to be combined with information specific to your organisation or location.

Bulk Danger Sign Discounts

Large workplaces, construction projects and industrial sites often require multiple safety signs across different areas.

Bulk discounts can make it easier to standardise warning signage across larger premises and multi-area sites.

Danger Signs Made in Britain

Our danger signs are professionally manufactured by 1st 4 Signs in Britain.

With more than 20 years of sign-making experience, we produce commercial signage using carefully selected materials and professional production processes for businesses, trades and organisations.

Frequently Asked Questions About Danger Signs

What types of danger signs do you sell?

Our range includes electrical danger signs, high voltage signs, machinery danger signs, chemical hazard signs, asbestos warnings, confined space signs, construction danger signs, excavation warnings and restricted-access signs.

What materials are Danger Signs available in?

Depending on the product, signs are available in self-adhesive vinyl, rigid PVC board and aluminium composite.

Which material should I choose?

Self-adhesive vinyl is ideal for clean, smooth surfaces. PVC provides a rigid self-supporting sign, while aluminium composite is a durable option for demanding commercial and exterior applications.

Are Danger Signs suitable for outdoor use?

Many signs in the range are suitable for outdoor use. Check the individual product page for the specific material and intended application.

Do you sell High Voltage danger signs?

Yes. Our range includes High Voltage and electrical danger signs for suitable workplace, industrial and electrical applications.

Do you make machinery danger signs?

Yes. Machinery warning and danger signage is available for factories, workshops, manufacturing facilities and other industrial environments.

Do you sell asbestos warning signs?

Yes. The collection includes asbestos warning signage for suitable construction, maintenance and managed-premises applications.

Do you sell confined space signs?

Yes. Confined-space and restricted-access signs are available within the range.

Do you make construction site Danger Signs?

Yes. Our range includes danger signage suitable for construction sites, contractors and work areas.

Can Danger Signs be personalised?

Selected products can be customised with additional wording, company information or branding where required.

Can I add my company logo?

Where appropriate for the selected product, a company logo can be incorporated into a custom danger sign.

Do you offer bulk discounts?

Yes. Bulk quantity discounts are available across the range, with greater discounts at higher quantities.

Are Danger Signs suitable for factories and warehouses?

Yes. They are suitable for a wide range of industrial, manufacturing, warehouse and engineering environments.

Can Danger Signs be used on farms?

Yes. Suitable danger signage can be used around agricultural premises where hazards need to be clearly identified.

Where are your Danger Signs made?

Our danger signs are professionally manufactured by 1st 4 Signs in Britain.

Professional Danger Signage for Your Workplace

Whether you need an electrical danger sign, machinery warning, chemical hazard sign, confined space notice, construction danger sign or restricted-access warning, choose the material and size suited to your location.

Our range provides clear hazard communication for commercial, industrial, construction, utility and workplace environments.

Clear Hazard Communication • Durable Materials • Made in Britain