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Hill Grwp Ltd Blog
Explore the Hill Grwp blog for the latest insights, project updates, and industry news on GRP housings, pump rooms, switchgear substations, and roof access systems. Our articles share expert knowledge, practical solutions, and innovations in industrial and commercial building services to help you stay informed.
Hill Grwp Ltd News
Read the latest Hill Grwp Ltd news, project updates and company articles covering bespoke GRP and steel enclosures, manufacturing, installations and UK infrastructure projects.


Split GRP Sprinkler Pump Room Manufactured for Site Installation
For this project, Hill Grwp Ltd designed the GRP enclosure as two separate but coordinated sections.
This allowed the pump room to retain the required overall dimensions while providing a more practical delivery and installation method.

Hill Grwp Ltd
17 minutes ago5 min read


Bespoke GRP Sprinkler Kiosk: From Manufacture to Site Installation
A bespoke GRP sprinkler kiosk manufactured around the project requirements, with double steel doors and pre-made equipment entries, before delivery and final integration on site.

Hill Grwp Ltd
Sep 105 min read


Bespoke GRP Enclosure Manufactured for Grease Trap Equipment
A bespoke GRP equipment enclosure manufactured around a grease trap installation, with steel double doors, ventilation and pre-planned service entry points before delivery.

Hill Grwp Ltd
Sep 12 min read


When Is a Low-Profile Roof Service Entry System the Right Choice?
When multiple building services need to pass through a roof, a full-height enclosure is not always necessary. Discover when a low-profile roof service entry system may be the better option and how TopBox Compact fits between individual roof penetrations and a full TopBox enclosure.

Hill Grwp Ltd
Aug 267 min read


GRP Sprinkler Pump Room Heading to Northern Ireland
Another bespoke GRP sprinkler pump room has left the Hill Grwp Ltd factory in Swansea, this time heading across the water for installation in Northern Ireland.

Hill Grwp Ltd
Aug 252 min read


Compact GRP Electrical Kiosk with Internal Electrical System
Hill Grwp Ltd manufactures compact GRP electrical kiosks, small weatherproof enclosures and larger GRP buildings for control panels, equipment and site services.

Hill Grwp Ltd
Jul 283 min read


Introducing Insulation & More: Specialist Insulation Products with Practical Support
Insulation & More helps make that process easier by supplying specialist insulation products, cladding and installation materials for commercial, industrial and building-services projects throughout the UK.
Operated by Hill Grwp Ltd, the business combines a wide online product range with practical industry knowledge and support for both everyday orders and larger project requirements.

Hill Grwp Ltd
Jul 173 min read


Bespoke TopBox Roof Entry Systems for Controlled MEP Service Penetrations
Hill Grwp Ltd designs and manufactures TopBox Roof Entry Systems around each project’s requirements. Units can be configured to suit different service layouts, roof details, access needs, finishes and site installation requirements.

Hill Grwp Ltd
Jul 143 min read


Sealing Sprinkler Pipe Entries After Installation on a GRP Pump Room Enclosure
A GRP sprinkler kiosk does not finish when the building is positioned on site.
One of the most important stages happens after the sprinkler pipework has been fitted: sealing around the pipe entries.

Hill Grwp Ltd
Jun 255 min read


Split GRP Sprinkler Kiosk with Steel Doors, Ventilation and Pre-Formed Pipe Entries
Hill Grwp Ltd has recently completed another split GRP sprinkler kiosk, manufactured with key project details already built into the enclosure. The unit includes steel double doors, integrated ventilation louvres, insulated roof construction and pre-formed pipe entry points to help support faster installation on site.

Hill Grwp Ltd
Jun 156 min read


Weatherproof GRP Enclosures with Steel Doors and Ventilation Louvres
Hill Grwp Ltd recently completed another GRP enclosure on site, manufactured with steel double doors, ventilation louvres and a clean external finish. It is a straightforward project, but a useful example of the details that matter on weatherproof GRP kiosks and external site enclosures.

Hill Grwp Ltd
May 285 min read


GRP Substation Enclosures for Solar Farm Projects
Solar farms rely on much more than solar panels. Behind the visible array, there are systems that collect, control, transform and transfer electrical power.
Depending on the project, this infrastructure can include switchgear, transformers, metering equipment, control equipment, cabling and connection systems. Solar farm substations are commonly used to support this process, with electrical infrastructure playing a key role in connecting generated power to the wider netwo

Hill Grwp Ltd
May 215 min read


Electrical Enclosure Condensation: Causes, Prevention and Practical Fixes
Condensation in electrical enclosures is one of the most common problems we see on industrial sites. It’s silent, often unnoticed until equipment fails, and it can cost thousands in repairs, downtime, and lost productivity.
Here’s what causes it and how to prevent it.

Hill Grwp Ltd
May 144 min read


Bespoke Pre-Packaged GRP Sprinkler Pump Room Delivered Ready for Installation
See how Hill Grwp delivered a bespoke sprinkler pump room with factory-fitted services, rapid installation and full compliance. Discover the benefits of off-site manufactured pump solutions.

Hill Grwp Ltd
May 143 min read


GRP and Steel Enclosures for Critical Equipment Across UK Industries
Every industry has critical equipment that can’t fail - and every failure can be costly. That’s where Hill Grwp enclosures come in. Here’s how we make a difference:

Hill Grwp Ltd
May 144 min read


Steel Base Frames for GRP Enclosures, Substations and Prefabricated Buildings
A building is only as strong as its foundation. At Hill Grwp, our steel base frames provide a rigid, load-bearing foundation for prefabricated buildings, electrical kiosks, GRP substation buildings, and plant enclosures - ensuring stability, safety, and longevity.

Hill Grwp Ltd
May 143 min read


TopBox Roof Entry System Case Study: Weatherproof Pipe and Cable Entry in Abergavenny
Hill Grwp recently supplied and installed several TopBox roof entry systems on a commercial building in Abergavenny, South Wales, providing safe and fully weatherproof entry points for essential building services. Although the roof is also fitted with solar panels, the purpose of the TopBox installations was to protect pipework and electrical services entering the building, ensuring that roof penetrations were properly sealed and structurally secure.

Hill Grwp Ltd
May 144 min read


TopBox Roof Entry Kiosk for Weatherproof Pipe Entry Through the Roof
Recent TopBox roof entry systems progressing through production, with this unit demonstrating the pipe entry configuration prior to installation.

Hill Grwp Ltd
May 142 min read


Factory-Built GRP Building Ready for Delivery and Site Installation
Back to work and full of new energy as projects continue to move from production to site.

Hill Grwp Ltd
May 142 min read


🏗️ The Future of Rooftop Access | Introducing TopBox
Accessing rooftop systems safely shouldn’t be a challenge. That’s why we developed TopBox — our purpose-built roof entry kiosk designed to simplify ductwork, pipework, and cable installations in commercial buildings.

Hill Grwp Ltd
Jul 10, 20251 min read
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