Across this multi-site project area, our client required a series of reliable and compliant rooftop entry system to safely house critical equipment. Every location was different - varying roof layouts, equipment footprints, and operational needs - which made TopBox the ideal solution.  TopBox is our fully customisable GRP roof entry system, developed to give facilities teams the flexibility, safety, and durability they need… without disruption to ongoing operations. 

From design → manufacture → logistics, our team handled every detail to ensure safe delivery and smooth installation on site. - Heavy-duty industrial equipment - Harsh outdoor environments - Compliance and long-term access needs

Our TopBox GRP roof entry system now installed at a UK Police firing range, providing secure, weatherproof access while maintaining a clean and low-profile finish.

At Hill Grwp, we design and deliver fully integrated electrical layouts, tailored to your exact specifications. Inside each substation, you’ll find pre-installed switchgear, transformers, control panels, and protection systems, all factory-tested for smooth, fast commissioning.

We recently designed, manufactured, and delivered a bespoke GRP substation with a C5 Corrosion Resistant painted steel base. Engineered for durability, safety, and operational efficiency, this unit demonstrates our capability to combine GRP technology with structural steel elements to meet complex site requirements.

We designed, manufactured, and supplied 2no. GRP TopBoxes specifically for a UK police firing range. Each unit was engineered to house ductwork and electrical containment in a safe, secure, and weather-protected environment. Key features include: - Integrated Access Hatches - Water-Sealed Construction - Durable GRP Fabrication - Custom Design These TopBoxes demonstrate our ability to provide specialist GRP solutions for challenging environments.

What does it take to get a rooftop entry system ready for delivery? For our latest Hill Grwp TopBox project, the answer is precision engineering, careful planning, and teamwork at every stage. This custom-built TopBox roof entry enclosure has just left our facility and is heading to site, where it will provide a safe, reliable, and cost-effective solution for controlled roof entry. At Hill Grwp, we design and manufacture TopBox GRP enclosures to make roof entry safer, simpler

Designed and built for industrial and commercial environments, TopBox provides: ✅ Safe, enclosed roof entry ✅ Fast and controlled access for maintenance teams ✅ A durable GRP construction built to perform in all weather conditions This unit is part of our growing line of roof entry solutions, helping clients improve safety, efficiency, and compliance on their sites. If your project needs a reliable and long-lasting roof entry enclosure, Hill Grwp’s TopBox is ready to delive

This latest build was designed, manufactured, and fully fitted out in-house to meet our client’s exact requirements. Constructed from GRP (Glass Reinforced Plastic) for maximum durability, weather resistance, and low maintenance. Fully equipped with internal electrics, lighting, and access points for easy installation and long-term reliability.

This particular unit was built for a client with year-round exposure to harsh conditions — and with a GRP outer shell and a galvanised steel base, it’s engineered for reliable, low-maintenance protection. 

Another pre-packaged GRP Sprinkler Pump House from Hill Grwp on the road — delivered safely and on time to another satisfied client in the UK.  This modular GRP housing was fully fabricated off-site in our facility and is ready for rapid installation, helping our client stay on schedule and compliant with fire protection standards.