Engineering the Future of Infrastructure
Hill Grwp UK
Hill Grwp is proud to be at the forefront of designing and manufacturing bespoke equipment and products for a diverse range of industrial and commercial services and needs, for niche requirements and mainstream necessities.
Our commitment to quality and customer satisfaction has established us as a leader in the sector and a trusted, go-to partner for industry leaders across multiple sectors due to our knowledge and understanding of the needs of our customers.
What we create
Switchgear Substations and Oil & Gas Metering Housing
Pre-Packaged Sprinkler Pump Rooms
TopBox Roof Access Kiosk
GRP Weatherproof Housing and Enclosures
We manufacture high-performance GRP enclosures designed for industrial use across the UK.
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Weatherproof & durable – built for harsh environments
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Fire-rated & acoustic options – for safety and compliance
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Custom sizes & specs – tailored to your project needs
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Ideal for utilities, energy, and commercial sectors
Fully assembled fire protection systems, engineered for fast installation and long-term reliability.
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Compliant with UK fire safety regulations
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Factory-built & pre-tested for performance assurance
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Quick installation with minimal on-site disruption
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Customisable layouts to fit any building requirements
Robust GRP and steel enclosures built for critical infrastructure and energy applications.
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Weatherproof & durable for harsh industrial environments
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Customised for switchgear & metering systems
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Integrated LV services: lighting, HVAC, and surge protection
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Compliant with UK utility & safety standard
Engineered GRP access units for safe, weatherproof rooftop entry.
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Ideal for ductwork, cabling & HVAC installation
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Secure & compliant access for commercial buildings
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Durable GRP construction with fire-rated options
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Streamlines rooftop projects with safer working zones
Hill Grwp delivers high-performance GRP weatherproof housings, modular switchgear substations, and pre-packaged sprinkler pump rooms built for the UK’s industrial, utility, and commercial sectors. Our expertise in custom GRP enclosures, from roof access systems to fire-rated acoustic units, ensures fully compliant, factory-built solutions delivered with precision.
Trusted across Swansea, Wales, and the UK, we provide low-maintenance, durable enclosures designed for fast installation and long-term performance.
Contact us
+44 1792 899177
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What types of enclosures do you manufacture?We manufacture custom industrial GRP enclosures, steel-framed housings, and prefabricated utility enclosures UK-wide for use in switchgear, metering, rooftop access, and fire protection systems. Our GRP weatherproof housings and fire-rated GRP enclosures are built to perform in tough industrial environments.
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What is the TopBox roof access kiosk?TopBox is our GRP roof access system designed to provide safe and secure entry to plant rooms, rooftop equipment, and service areas. As a modular, weather-resistant kiosk, it offers a durable and low-maintenance solution for industrial and commercial buildings. The TopBox GRP roof access unit can be customised to meet your project’s layout, safety, and compliance needs.
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Are your GRP enclosures fire-rated or acoustic?Yes — we offer both fire-rated GRP enclosures and acoustic GRP housings designed for industrial and utility applications. These enclosures are tested to meet UK safety regulations and are ideal for environments that require noise reduction, fire protection, and durable weatherproof performance.
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Can you design a custom housing solution?Yes, we specialise in bespoke GRP housing for utility infrastructure, offering factory-built GRP housing units with optional HVAC, lighting, acoustic insulation, and fire protection.
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Do you install the enclosures on site?Yes — we offer UK-wide delivery and installation for all our GRP utility enclosures, modular switchgear housings, and pre-packaged sprinkler pump rooms. Our experienced team ensures each system is installed safely, efficiently, and in full compliance with UK building and utility regulations.
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Are your pump rooms compliant with UK fire safety standards?Yes, our pre-packaged sprinkler pump rooms are designed and manufactured to meet all relevant UK building regulations and fire safety compliance.
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What certifications or standards do your products follow?Our GRP enclosures, sprinkler pump rooms, and modular utility housings comply with key UK and international standards. We also meet all relevant UK building regulations and utility sector compliance requirements. Full certification documentation is available upon request.
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What industries do you work with?We supply industrial GRP enclosures UK-wide to sectors including power, utilities, telecoms, construction and oil & gas. Our modular GRP substations for energy networks and GRP kiosks for power distribution are engineered to meet the specific needs of harsh or remote environments.
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Can you supply for oil & gas, water, or power projects?Yes — we manufacture GRP enclosures and steel-framed housings designed specifically for oil & gas metering, water treatment facilities, and power distribution projects. Our solutions are built to protect sensitive infrastructure in demanding environments, offering weatherproof, fire-rated, and acoustic performance where required.
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How can I request a quote or technical drawing?Use our contact form or call us directly. Information@hill-group.co.uk +44(0)1792 899 177
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Can I visit your facility in Swansea?Yes — our headquarters in Swansea, South Wales is open to clients by appointment. As a trusted provider of Hill Grwp GRP enclosures, we also offer nationwide project support and technical consultations.