£10.32 – £172.80

Construction Work/Unauthorised Entry… Site Signs

Enhance site safety and ensure regulatory compliance with our high-quality Construction Work/Unauthorised Entry... Site Signs. Designed to clearly communicate restricted access and potential hazards, these construction site safety signs are essential for maintaining a secure environment across a wide range of locations—including active construction zones, warehouses, loading bays, and industrial sites. Available in your choice of durable adhesive vinyl for smooth surfaces or a robust 3mm PVC board for long-term, weather-resistant use, our signs offer flexibility for indoor or outdoor placement. Select from multiple sizes via our convenient dropdown menu to suit your specific application needs. Whether you're looking for a construction zone sign to warn the public, a safety first sign to reinforce site rules, or a men at work sign to alert passersby, these signs play a critical role in deterring unauthorized access and promoting a culture of safety. Bulk pricing is available to make large orders more cost-effective. Please note that fixings are not included. All orders are delivered within 5 working days, with express delivery options including next-day, 48-hour, and 72-hour turnaround to meet urgent site requirements. Protect your team and your site—order your Construction Work/Unauthorised Entry... Site Signs today and take the first step toward a safer, more compliant workplace.

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Construction Work/Unauthorised Entry... Site Signs | Construction Signs

Product Summary

Ensure maximum safety and compliance on your construction site with our Construction Work/Unauthorised Entry... Site Signs. Designed to deliver clear guidance and prohibitive warnings, these multi-message safety signs are ideal for use in a variety of locations, including active construction zones, building sites, and restricted work areas. Whether you're a site manager, contractor, or facilities officer, these signs help you communicate critical safety messages to employees, subcontractors, visitors, and the general public. Combining essential warnings such as “Construction Work in Progress” and “Unauthorised Entry Prohibited”, these safety first signs ensure your site maintains regulatory compliance and reduces the risk of accidents. With highly visible graphics and bold, legible text, these signs are a must-have for any professionally managed site. Our signs also serve as effective construction site safety signs and men at work signs, making them a versatile solution for any construction safety plan.

Material & Print Options

We offer two durable material options to suit your site conditions and installation preferences:

Self-Adhesive Vinyl: Ideal for smooth indoor or short-term outdoor surfaces; easy peel-and-stick application.
3mm Rigid PVC: A tough, weather-resistant option suitable for long-term outdoor use and mounting to walls, fences, or signposts.

Each sign is printed with high-contrast colours and universally recognised symbols to ensure instant recognition and readability, even from a distance. Built to perform in the demanding conditions of construction zones, these signs are a reliable addition to your site safety toolkit.

Installation Info

Our Construction Work/Unauthorised Entry... Site Signs are designed for quick and flexible installation. They can be mounted onto a variety of surfaces, including walls, hoarding, mesh fencing, or stanchion sign holders. Please note: Fixings are not included with this product. This allows you to choose the most appropriate mounting method for your specific environment and materials.

Delivery & Lead Times

We understand that time is critical in construction project management. That’s why we offer fast and reliable delivery options to suit your schedule:

Standard Delivery: Within 5 working days
Express Delivery: Choose from next-day, 48-hour, or 72-hour delivery options at checkout

Orders placed before our daily cut-off time are eligible for same-day dispatch. For any urgent requirements or order queries, our experienced customer support team is available 18 hours a day to assist.

Why Choose This Sign

When it comes to maintaining a safe and compliant worksite, visibility and clarity are essential. Here’s why our Construction Work/Unauthorised Entry... Site Signs are the right choice for your site:

Clearly communicates essential safety messages to all site visitors
Supports compliance with health and safety regulations
Acts as both a construction zone sign and a safety first sign
Available in durable materials for indoor and outdoor use
Highly visible design with bold text and safety symbols
Flexible installation options to suit any site layout
Fast delivery options to align with your project timelines

These signs are a critical component of any effective site safety strategy, helping to prevent unauthorised access, reduce liability, and protect your workforce. Order your Construction Work/Unauthorised Entry... Site Signs today and take a proactive step toward a safer, more organised construction environment.

Material Weight:
Rigid PVC Panel (5mm) – Industrial-grade, impact-resistant substrate suitable for prolonged outdoor deployment on construction and industrial sites.
Removable Vinyl Film (180 GSM) – High-tack adhesive for secure placement with clean, residue-free removal, ideal for short-term or rotating safety messaging.
Material Surface:
Matte, Anti-Glare Coating – Ensures maximum legibility in high-light environments, prevents reflection from site lighting or direct sunlight, and maintains a professional non-shiny appearance.

How long will it take to receive my safety signs?

Our standard delivery time is 5 working days from artwork approval. Express turnaround options are available upon request.

Do you have ready-made designs?

Yes, we have pre-made templates for construction navigation signs, hazard warnings, PPE reminders, directional signs, and more. These can be customised with your logo or wording.