Rail Infrastructure Contractor Since 1993

Delivering safe, compliant and professionally managed works within live rail environments across London and the South East.

Trusted Delivery Within the Rail Environment

CLG Enterprises is a pre-accredited and pre-qualified framework contractor for Network Rail, with extensive experience delivering works within operational and safety-critical rail environments.

For over three decades, we have supported rail infrastructure organisations and train operating companies with refurbishment, maintenance and regeneration projects — planned and delivered to meet the stringent requirements of live railway operations.

Our experience, structured planning and uncompromising approach to health and safety have been key to our long-term success in this sector.

Safety, Planning and Control at Every Stage

Working within a railway-controlled environment demands meticulous planning, disciplined sequencing and absolute compliance with safety procedures.

CLG’s structured approach to planning and execution ensures all construction phases are carefully coordinated, risks are managed proactively, and works are delivered without compromise to safety or operational continuity.

We are proud to maintain an impeccable health and safety record with Network Rail — a performance standard that underpins our continued growth within the rail sector.

Our Rail Industry Services

Concourse & Major Station Works

Planned maintenance and refurbishment works within live station environments, delivered with careful phasing to minimise disruption to passengers and operations.

Depot Regeneration Projects

Refurbishment and reconfiguration of depot buildings to improve welfare, operational efficiency and working environments for rail staff.

Arch Redevelopment & Refurbishment

Comprehensive redevelopment and refurbishment of Network Rail arches, transforming legacy infrastructure into modern retail and light industrial units.

Rail Industry Case Studies

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Tilbury Arches – Full Site Redevelopment

Overview:

Complete redevelopment of a 12-arch site, transforming underutilised infrastructure into high-quality commercial units.

Key Works:

  • Arch refurbishment and internal re-lining

  • Construction of new arch frontages with glazed infills

  • Roller shutters and fire doors

  • New insulated concrete floors

  • Drainage, water supply and power infrastructure

  • Small power and lighting installations

  • Accessible toilet facilities to each arch

Outcome:

A successful regeneration project delivered in coordination with Network Rail and statutory providers, creating modern, lettable units from legacy infrastructure.

Clapham Car Park – Depot Regeneration

Overview:

Regeneration and refurbishment works within an operational rail-related facility, delivered with strict adherence to access, safety and programme controls.

Waterloo Station – High Level Cleaning Works

Overview:

High-level cleaning works to the entire roof structure and lighting installation ahead of the station’s redevelopment programme.

Key Challenges:

  • One of London’s busiest stations

  • Restricted working hours

  • Complex access requirements

Delivery:

CLG worked closely with the station facilities management team to develop a structured programme using specialist access solutions, allowing works to proceed without impacting daily station operations.

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CLG has been our maintenance contractor at Puddle Dock for over sixteen years, working across multiple landlords and managing agents.

They are consistently well organised, reliable and professional, with excellent communication and attention to detail. I am very happy to recommend CLG for building works, maintenance, office moves and refurbishment projects

Tracy Smith
Facilities Manager
Mitie
A modern glass-walled meeting room with a round table and chairs, a digital screen, and yellow-green walls, in a spacious office setting.
A person stands at a railway station ticket counter under a blue "Tickets" sign, with a ticket machine and informational posters nearby.
A modern classroom with curved ceiling, cloud-shaped decorations, wooden furniture, play equipment, and large windows letting in natural light.
Two cars are parked inside a curved-roof garage with yellow and white walls; various boxes and items are stored along the left side.
Accessible toilet with a loo, small basin, exposed plumbing, brick wall, and multiple black grab rails for support.
A stone bridge with multiple arches spans over a rubble-filled ground area; a fence and shed are visible on the left, and a white gate is at the far end.
A construction worker in orange safety gear stands near a small digger and a dumper next to an arched brick structure at a worksite.
A row of brick archways set into a stone viaduct, each arch featuring a blue roller shutter door and a paved pavement in front.

A Proven Track Record in Rail

Our success in the rail sector is built on long-standing client relationships, consistent delivery and a customer-focused approach.

CLG’s ability to coordinate multiple workstreams, manage specialist access equipment and operate safely within constrained environments makes us a trusted delivery partner for rail infrastructure projects of varying scale and complexity.

Accredited and Approved for Rail Delivery

A row of six accreditation and certification badges for construction industry standards, including ISO 9001, SafeContractor, RISQS, Considerate Constructors, Constructionline, and CHAS.

Our rail works are supported by recognised industry accreditations and framework approvals, ensuring compliance, governance and safe delivery across all projects.

Discuss Your Rail Infrastructure Requirements

Whether supporting planned maintenance, refurbishment or regeneration works, CLG Enterprises delivers reliable, compliant and professional rail infrastructure services.

Discuss a Rail Project
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