Meet Hill Grwp Ltd | The Manufacturer Behind Insulation & More

Many of our customers know Insulation & More as a specialist supplier of insulation, cladding, valve jackets and associated installation products.

What may be less familiar is the wider manufacturing business behind the website.

Insulation & More is a trading name of Hill Grwp Ltd, a Swansea-based UK manufacturer specialising in bespoke GRP and steel enclosures for construction, fire protection, utilities, industrial facilities and infrastructure projects.

Although the two sides of the business provide different products and services, they work with many of the same contractors, engineers, facilities teams and project managers.

A Direct Route from Product Supply to UK Manufacturing Support

Understanding the connection between Insulation & More and Hill Grwp Ltd means customers have a direct route to a specialist manufacturing team when a project requires more than insulation products alone.

Hill Grwp Ltd: Visit Website Project Enquiry: Submit Your Requirements

What does Hill Grwp Ltd manufacture?

Hill Grwp Ltd designs and manufactures project-specific enclosures and supporting structures for electrical, mechanical, fire protection and industrial equipment.

Rather than offering a limited range of standard sizes, Hill Grwp Ltd designs each solution around the equipment, site conditions and technical requirements of the project.

GRP and steel weatherproof enclosures
Pre-packaged sprinkler pump rooms
Switchgear substations
Oil and gas metering housings
TopBox roof entry systems
Steel bases for enclosures and equipment
External steel staircases and access platforms
Enclosure repairs, alterations and refurbishment

This can include the enclosure dimensions, equipment layout, access requirements, ventilation, service openings, internal fit-out, steel base, delivery method and installation arrangements.

Bespoke GRP and steel enclosures

Industrial and building-services equipment often needs to be protected from weather, unauthorised access and demanding site conditions.

Hill Grwp Ltd’s GRP and steel enclosures provide secure, purpose-built environments for electrical, mechanical, utility and process equipment.

Projects can range from compact control-panel kiosks to large walk-in plant enclosures.

Insulated or single-skin construction
GRP, steel or combined construction
Steel single or double doors
Ventilation and temperature-control systems
Internal lighting, sockets and electrical distribution
Pre-formed pipe, duct and cable entries
Removable roofs or access panels
Hot-dip galvanised or painted steel bases
External access platforms and staircases
Bespoke colours and finishes

Explore GRP Enclosures

Bespoke GRP and steel enclosure by Hill Grwp Ltd

By coordinating these elements during the design and manufacturing stage, Hill Grwp Ltd can reduce the amount of modification and assembly required after the enclosure arrives on site.

Pre-packaged sprinkler pump rooms

Pre-packaged sprinkler pump room by Hill Grwp Ltd

Hill Grwp Ltd manufactures pre-packaged sprinkler pump rooms for commercial, industrial and infrastructure developments.

Each sprinkler pump room is designed around the chosen sprinkler pump equipment, pipework arrangement, maintenance clearances, ventilation requirements and available site access.

Units can range from compact GRP sprinkler kiosks to large pump-room buildings delivered fully assembled or in sections for installation around equipment already positioned on site.

A coordinated enclosure package
Reduced on-site construction
Fewer interfaces between different trades
More predictable installation
Factory-controlled build quality
Service entries formed before delivery
Options for integrated lighting and ventilation
Solutions for restricted-access sites

Explore Sprinkler Pump Rooms

Hill Grwp Ltd manufactures the enclosure and supporting systems rather than the sprinkler pump equipment itself. This allows sprinkler contractors to use their preferred pump supplier while receiving a purpose-built housing designed around the selected system.

TopBox roof entry systems

Passing pipework, ducting and electrical services through a roof can create challenges around coordination, weatherproofing and long-term maintenance.

TopBox roof entry systems provide a controlled route for building services entering through commercial and industrial roofs.

Each TopBox is designed around the services it needs to accommodate. This can include ductwork, electrical containment, pipe entries, access panels and removable lids.

Bringing these elements together within one factory-built unit can help reduce the need for separate roof penetrations and improvised weatherproofing arrangements on site.

TopBox systems can be used on new-build and refurbishment projects, including commercial buildings, industrial facilities, data centres, healthcare buildings and infrastructure developments.

Explore TopBox Roof Entry Systems

TopBox roof entry system by Hill Grwp Ltd

Switchgear and metering housings

Switchgear and metering housing by Hill Grwp Ltd

Electrical switchgear, transformers, control systems and metering equipment require secure environments with suitable access and ventilation.

Hill Grwp Ltd designs and manufactures bespoke GRP and steel switchgear substations and metering housings around the equipment specification.

Natural or forced ventilation
Internal lighting and electrical services
Cable-entry arrangements
Equipment access and maintenance clearances
Insulated wall and roof construction
Steel doors and security hardware
Integrated steel bases
External staircases and access platforms

The enclosure, base, access and internal requirements can be coordinated as part of one package, helping reduce interface problems between separately designed components.

Explore Switchgear Housings

Steel bases, staircases and access platforms

The enclosure is only one part of the installation. Bases, platforms and staircases can be designed as part of the same coordinated package.

Hill Grwp Ltd can provide steel bases for GRP and steel enclosures, as well as external steel staircases and access platforms.

This is useful where the enclosure needs to sit over services, align with site levels, provide safe maintenance access or integrate with raised equipment.

Steel base for GRP enclosure by Hill Grwp Ltd

Steel Bases

Steel bases can be designed around enclosure dimensions, service openings, lifting requirements and site support details.

View Steel Bases

External steel staircase and platform by Hill Grwp Ltd

External Steel Staircases & Platforms

Bespoke access structures for raised equipment, roof plant, elevated enclosures and maintenance routes.

View Staircases & Platforms

Submit a Project Enquiry

Send drawings, dimensions, equipment layouts and site requirements to the Hill Grwp Ltd team.

Request a Quote

What does this mean for Insulation & More customers?

Many Insulation & More customers work within mechanical services, insulation, fire protection, industrial maintenance and construction. These projects may also require weatherproof equipment housings, sprinkler pump rooms, substations, roof entry systems or steel access structures.

Being part of Hill Grwp Ltd means we can provide a direct introduction to the appropriate manufacturing team when one of these requirements arises.

Shared Contractor Understanding

The wider business understands site access restrictions, deadlines, trade coordination and technical specifications.

Different Services, Connected Support

Insulation & More supplies insulation products, while Hill Grwp Ltd manages bespoke enclosure enquiries.

Broader Technical Support

Customers can access a wider range of product and manufacturing knowledge through one established organisation.

UK manufacturing from Swansea

Hill Grwp Ltd manufactures from its facility in Swansea and supplies projects throughout the UK.

The company works with main contractors, M&E contractors, sprinkler and fire protection specialists, electrical contractors, utility providers, consultants and industrial project teams.

Hill Grwp Ltd is also a Made in Britain member, supporting its position as a UK manufacturer of bespoke GRP and steel products.

Every project begins with the customer’s requirements. The design team can review specifications, drawings, equipment layouts and site information before developing a solution suited to the intended application.

Related Hill Grwp Ltd services

Explore the main Hill Grwp Ltd manufacturing services connected to the article.

GRP weatherproof housings and enclosures by Hill Grwp Ltd

GRP Weatherproof Enclosures

Purpose-built GRP and steel housings for electrical, mechanical, utility and process equipment.

View Service

Sprinkler Pump Rooms

Factory-built pump room housings designed around sprinkler equipment and project requirements.

View Service

Switchgear substation enclosure by Hill Grwp Ltd

Switchgear & Metering Housings

Secure GRP and steel housings for electrical switchgear, metering and utility equipment.

View Service