the City of London Data Cabling Services

Structured data cabling across the City of London.

ACCL surveys, installs and tests structured data cabling for businesses across the City of London, planned around your working hours and handed over with full records.

Structured
Data Cabling

Cat6 and Cat6A outlets, cabinets, containment and clear labelling.

Explore Cabling

Fibre Optic
Installation

Single-mode and multimode backbones between floors and buildings.

Explore Fibre

Office
Wi-Fi Cabling

Access point cabling planned around how each floor is used.

Explore Wi-Fi

CCTV &
Access Cabling

PoE network cabling for cameras, doors and entry systems.

Explore CCTV

Moves, Adds
& Changes

Extra outlets, desk moves and cabinet changes, out of hours.

Explore Moves & Changes

Cabinet
Audits & Tidies

Colour-coded patching, labelling and records for congested cabinets.

Explore Cabinet Tidies

Recent work in the City of London includes Mitsubishi UFJ, 24 Lombard Street: a 62-position trading floor and 28 years of network infrastructure.

The ACCL Difference

Why the City of London businesses choose ACCL.

Surveyed for
your building

Routes, risers, cabinets and access checked on site in the City of London before any quote.

Built for
live sites

Work planned around occupied offices, security rules and the systems you run.

Our own
engineers

ACCL's own engineers survey and install. We do not use subcontracted installers.

Tested and
documented

Every link tested, labelled and handed over with test results and records.

the City of London Projects

Recent work in the City of London.

Explore 50+ Projects

Across the City of London

the City of London coverage.

We work across the City of London, including Bank and Cornhill, Liverpool Street, Fleet Street and Barbican.

Bank and
Cornhill

EC2 and EC3

Liverpool Street

EC2

Fleet Street

EC4

Barbican

EC1 and EC2

We also run data cabling across London from our Royal Exchange office.

How a the City of London Project Runs

A process built around live sites.

  1. 01Survey and designRoutes, cabinets and access checked.

    We review the systems you need to support, cabinet positions, pathways, containment and access rules, then give you an itemised quotation.

  2. 02Installation around your operationsPhased, out of hours where needed.

    Work is planned around your working hours and building rules, in agreed windows, with method statements and risk assessments.

  3. 03Testing and handoverTested, labelled and documented.

    Every link is tested to the agreed specification and labelled. Test results and as-built records are handed over at the end.

Structured data cabling in the City of London

City of London Structured Data Cabling

A reliable, standards‑compliant structured cabling system is critical for businesses in the City of London, where uptime, compliance, and performance directly affect trading, client service, and regulatory obligations.

Why the City of London is a unique cabling environment

The City of London presents a distinctive mix of historic buildings, modern towers, and high‑rise developments, which makes cabling design and installation more complex than in typical office parks. For sites beyond the Square Mile, see our data cabling across London.

It’s only about one square mile, but is an economic giant. The Square Mile is run by the City of London Corporation, which predates the UK Parliament and operates separately from the Greater London Authority.

It also has its own dedicated City of London Police, distinct from the Metropolitan Police that covers the rest of London.

It hosts a dense concentration of global banks, insurers and professional services firms and is recognised as the historic birthplace and core of London.

Regularly working within the Square Mile ACCL have experience of:

  • Multi‑tenant and listed buildings, where routes must be carefully planned around existing services and building constraints.

  • High‑rise offices with multiple comms rooms, risers, and critical backbone cabling dependencies.

  • High‑availability environments that require resilient routes, dual comms rooms, or diverse fibre paths.

This local understanding helps us deliver cabling projects that meet both your technical requirements and the practical realities of working in the Square Mile.

High‑density, mixed‑use commercial buildings

Our engineers work in multi‑tenant offices, high‑rise towers and listed buildings, planning cabling routes carefully to suit the unique fabric of the City. Every installation is fully tested, labelled and documented, giving your IT team clear, audit‑ready records for troubleshooting and future changes. ACCL delivered exactly this kind of installation at Skinners’ Hall, a Grade I listed livery hall on Dowgate Hill, running structured cabling, fibre and CCTV infrastructure around a protected historic building.

ACCL Core Services

Providing end-to end solutions to suit your business.

Business Tech Refresh & IT Maintenance Services

Our structured cabling services in the City

We deliver a full lifecycle service for structured cabling projects in the City of London.

  • Site surveys and consultation to assess existing cabling, cabinet layouts, and routes, and to understand your applications and growth plans.

  • Design and specification for Cat5e, Cat6, Cat6a, Cat7, and fibre optic cabling, aligned with TIA/EIA and ISO/IEC standards.

  • Installation of horizontal cabling to work areas, backbone cabling between floors and comms rooms, and links to data centres or MDFs.

  • Comms room and cabinet works including patch panel installation, cable management, and tidy‑up/remediation of legacy cabling.

  • Testing, labelling, and documentation using certified test equipment to verify performance and provide test results for your records.

  • Ongoing support for MACs, cabling repairs, and additional outlets as your office layout or technology changes.

We can also coordinate with your fit‑out contractor, landlord, or IT partner to ensure cabling is aligned with power, HVAC, and programme dates.

City of London Structured Cabling

Sector Focus:

Global hub for financial and professional services

The City of London is recognised as a leading global centre for financial and professional services, home to more than 90,000 firms in these sectors. With institutions such as the Bank of England and the Financial Conduct Authority located here, digital infrastructure is critical to maintaining competitiveness and regulatory compliance.

Finance and Legal

The City is home to global banks, insurers, investment managers and major law firms that demand low‑latency, resilient cabling to support trading platforms and secure data workflows. We deliver structured cabling for:

  • Trading floors and dealing rooms with high‑density Cat6/Cat6a outlets and resilient fibre uplinks to core switches and data centres.

  • Law firms needing segmented networks, reliable Wi‑Fi backhaul, and secure cabling for document management and case systems.

  • Investment and corporate banking offices with dual‑path fibre, diverse routes and neatly managed comms rooms.

Our designs support high bandwidth, low latency and strong resilience so your teams can work without interruption.

Professional Services

Professional services in the City of London include consultancies, accountants and advisory firms that rely on flexible workplaces and smooth collaboration tools. We provide:

  • Structured cabling for open‑plan and agile offices, with well‑planned floor box and desk‑cluster layouts.

  • Cabling to support video conferencing, room booking panels and presentation systems in client meeting suites.

  • Reliable back‑office connectivity for printers, storage, telephony and cloud‑based applications.

Neat patching and clear labelling make MACs (moves, adds and changes) quick and predictable for your IT team or support provider.

City of London Structured cabling

Business Support and Service Providers

The City also hosts serviced offices, coworking spaces, outsourced IT providers and business support hubs that must accommodate frequent tenant and user changes. For these environments we deliver:​

  • Multi‑tenant structured cabling that makes it easy to onboard new clients and reconfigure workspaces at speed.

  • Resilient comms rooms and riser cabling to support managed services and remote monitoring.

  • Cabling for shared meeting rooms, reception zones and hot‑desking areas.

Our structured cabling helps maximise occupancy while maintaining performance and reliability for every user.

Technologies, standards and future‑readiness

Our installations use proven components and follow industry standards to ensure performance today and headroom for tomorrow.

  • Copper cabling categories from Cat5e up to Cat6a and beyond, matched to your bandwidth and application needs.

  • Multimode and singlemode fibre optic cabling for high‑speed backbone and inter‑floor links.

  • Structured cabling to support modern Wi‑Fi, IP telephony, CCTV, access control and building management systems.

  • Wi‑Fi backhaul cabling to support modern wireless standards, with cabling to access point locations optimised during survey and design.

  • Compliance with TIA/EIA and ISO/IEC standards, with documented test results for every link.

This standards‑based approach makes it easier to scale, upgrade and integrate new technologies over time.

FAQ: Structured Cabling in the City of London

What is structured cabling?

Structured cabling is a standards-based way of designing and installing network cabling so voice, data and other services all run over a single, organised infrastructure. It replaces ad-hoc cabling with a planned system of outlets, patch panels and backbone links.

Why is structured cabling important for City of London businesses?

City of London firms rely heavily on digital systems and must meet strict compliance and uptime expectations. Structured cabling provides the performance, resilience and documentation they need to support these demands. For example, ACCL recently delivered a new 62-position trading floor for a long-standing banking client at 24 Lombard Street: read the case study.

Which cabling categories do you recommend?

For most modern offices in the City, Cat6 or Cat6a is recommended for new installations, with fibre for backbone connections between floors and to data centres. This combination supports high-speed data, VoIP, Wi-Fi and future technology upgrades.

Can you work out of hours?

Yes, cabling works can be scheduled in evenings, overnight or at weekends to minimise disruption to trading and client-facing operations.

What areas in the City do you cover?

We cover the full Square Mile, including EC1 (Farringdon, Clerkenwell, Old Street, Finsbury), EC2 (Moorgate, Liverpool Street, Finsbury Circus), EC3 (Monument, Tower Hill, Aldgate, Fenchurch Street), EC4 (St Paul’s, Fleet Street, Temple, Blackfriars), and E1/E1A (Bishopsgate, Portsoken, Aldgate).

Financial-services fit-out case study: See how ACCL installed 539 warranted Molex Category 6A links, plus wireless and CCTV cabling, for a City of London financial-services workplace, phased alongside live construction in this City of London Cat 6A fit-out.

See also our structured data cabling hub for the full range of sectors and services ACCL covers.

Free the City of London site survey

Plan your the City of London project.

Tell us about the site and the systems it supports. A site survey lets us define routes, products, testing and handover before work begins. Contact us to Request a Free Site Survey Schedule an audit to ensure your network is performing at its peak.

  1. Site survey Routes, cabinets and access checked on site.
  2. Itemised quote Including working hours and testing scope.
  3. Tested install Labelled, documented and handed over.
Book a Free Site Survey Call 0333 900 0101

Excellent · 60+ Google reviews · Founded 1997 · £10m liability cover