Hill Grwp

Name: Hill Grwp
Address: Unit 4, Waunarlwydd, Swansea, Wales, UK, SA5 4SF
Telephone: 01792899177

Hill Grwp is a trusted engineering company based in Swansea, established in 1980. We specialise in the design and manufacture of custom industrial GRP enclosures and prefabricated utility housings for commercial, industrial, and energy infrastructure across the UK.

Our systems are engineered for performance, longevity, and UK regulatory compliance—ideal for demanding environments and time-sensitive installations. From factory-built GRP units to bespoke enclosures with integrated HVAC and lighting, we deliver pre-assembled, pre-tested solutions to meet the pace of modern infrastructure projects.

We manufacture a comprehensive range of GRP and modular utility products, including:

- Weatherproof and fire-rated GRP enclosures

- Pre-packaged sprinkler pump rooms

- Modular GRP switchgear substations

- Oil & gas metering housings

- The TopBox – our secure rooftop entry system for contractors

These systems are designed to reduce site disruption, shorten installation times, and provide long-term durability in harsh conditions.

Products & Services

Engineering