London Data Cabling Services
Everything your London network runs on.
ACCL has installed data cabling across London since 1997, from single-floor upgrades to multi-floor fit-outs in the City, Canary Wharf and the West End. Whether you need network cabling for a single floor or structured cabling across a whole building, every project follows our structured data cabling standards, with one team responsible for survey, design, installation, testing and documentation.
Structured
Data Cabling
Cat6 and Cat6A for London offices, fit-outs and refurbishments, with containment, cabinets and labelled outlets.
Explore CablingOffice
Cabling
Fit-outs, office moves and adds, moves and changes, planned around occupied London workplaces.
Explore Office CablingFibre Optic
Backbones
Fibre between floors, risers and buildings, and links into carrier and comms rooms.
Explore FibreCommercial
Wi-Fi
Survey-led wireless for London offices, with access points cabled and positioned for coverage and capacity.
Explore Wi-FiComms Rooms
& Data Centres
Comms room builds, cabinet tidies and server room cabling for London data centres and on-site rooms.
Explore Data CentresRecent London work includes The Winter Club at Canary Wharf, Uniqlo on Oxford Street and Grant Thornton at 30 Finsbury Square. Outside London, we cover Kent from our Orpington office, along with Surrey and the wider South East.
The ACCL Difference
Why London businesses choose ACCL.
Out-of-hours
installs
Evening and weekend working where the building allows, so occupied floors keep running.
Accredited
delivery
BICSI-led design with CHAS, SafeContractor and ISO-certified project controls.
Tested and
documented
Fluke DSX copper certification, fibre testing, labelling and clear handover records.
One accountable
team
Survey, design, installation and handover managed by one experienced contractor.
Across London
Data cabling in every part of London.

City of
London
Finance and livery halls

Canary
Wharf
Trading floors, towers

Westminster
West End, government
Camden
Tech, King's Cross
Southwark
Bankside, London Bridge
Tower
Hamlets
Aldgate, Docklands

Islington
Angel, Clerkenwell
Hackney
Shoreditch, Dalston
Lambeth
Waterloo, Vauxhall
Hammersmith
& Fulham
Hammersmith, White City

Kensington
& Chelsea
Kensington, Chelsea

Wandsworth
Battersea, Nine ElmsAlso covering Kent from our Orpington office.
How a London Project Runs
From survey to handover, around your building's rules.
01Free site surveyRoutes, risers, comms rooms and access checked on site.
One of our engineers visits, looks at the existing cabling, containment and comms room, and notes the building's access rules, permit requirements and working hours. The quote is built on what the survey finds.
02Approvals & planningLandlord, building manager and permit requirements agreed.
We prepare the RAMS, method statements and insurance documents that managed London buildings ask for, agree access times and riser use, and plan the work around other trades on a fit-out.
03InstallCabling installed around your working day.
Engineers install containment, cabling, cabinets and outlets to the agreed design, out of hours where the building allows, so occupied floors keep working and each area is cleared at the end of the shift.
04Test & certifyEvery new link proven before handover.
Copper links in the certification scope are measured on a calibrated Fluke DSX tester and any link that falls short is corrected before sign-off. Fibre is tested with the method that suits the installed system.
05Document & hand overLabels, test results and as-built records.
You receive the labelling schedule, test results and records in the agreed scope, ready for your IT team, your landlord's file and any future fit-out.
Data Cabling in London
Network cabling for London’s buildings
London’s commercial buildings are rarely simple to cable. Towers in the City and Canary Wharf have shared risers and strict building management. Older offices in the West End, Holborn and Clerkenwell often have limited ceiling and floor voids. Listed buildings and livery halls need routes that protect the fabric. Most of our London clients also need their offices to stay open while the work happens.
So every London project starts with a site survey: cable routes, comms room space, landlord requirements and working hours are checked on site and priced into the quote.
Cat6, Cat6A or fibre?
Most new London office fit-outs now use Cat6A, because it supports 10Gb to the desk and higher Power over Ethernet loads for Wi-Fi access points, cameras and door controllers. Cat6 still suits smaller refreshes where budgets are tight and speeds are modest. Fibre is used for backbones between floors and comms rooms, and for links between buildings. We recommend a mix at survey based on how you use the space and how long you plan to stay.
Data cabling London FAQs
Do you install data cabling out of hours in London offices?
Yes. Most London installs in occupied offices run in the evenings or at weekends, when the building and landlord allow it. We agree the working hours at the survey so they are priced into the quote.
Can you work in managed, multi-let or listed buildings?
Yes. We regularly work under building managers’ permit-to-work rules, share risers with other tenants and plan routes in heritage buildings, such as livery halls in the City, where fixings and cable routes need approval.
Do you handle landlord approvals, RAMS and permits?
We prepare the RAMS, method statements and insurance documents that London building managers ask for, and we attend inductions. Landlord consent itself comes from you or your agent, and we supply the drawings and details it needs.
How long does an office data cabling install take?
It depends on the number of outlets, the containment already in place and the hours the building allows. A small refresh can be done over a weekend; a multi-floor fit-out runs to the main contractor’s programme. The survey gives you a realistic timeline.
How much does data cabling cost in London?
Cost is driven by outlet numbers, cable grade, containment, testing scope and access. London buildings often add out-of-hours working and building management requirements. Our structured cabling cost guide explains the factors; the survey gives you an itemised price.
Do you test and certify the cabling?
Yes. New copper links in the agreed scope are certified on a calibrated Fluke DSX tester, and fibre is tested using the method the design calls for. Results, labelling schedules and as-built records are handed over at the end.
Which parts of London do you cover?
All of Greater London, from the City and Canary Wharf to outer boroughs such as Croydon, Hillingdon and Barnet. Our London office is in the City, and our Orpington office covers south-east London and Kent.
Can you work alongside our fit-out contractor or IT provider?
Yes. On Cat A and Cat B fit-outs we work to the main contractor’s programme and site rules, and we coordinate with your IT provider on cabinet layouts, patching and switch installation.

Our London office
London projects run from our Royal Exchange office.
Surveys, installs and callouts across London are handled by our own engineers, with the same team responsible for design, testing and handover.
1 Royal Exchange, London EC3V 3LT
Free London site survey
An itemised quote for your London building, before any work starts.
One of our engineers visits at no cost and with no obligation, and checks the access rules that affect the price.
- Site survey Routes, risers and comms rooms checked on site.
- Itemised quote Including access, permits and working hours.
- Certified install Tested, documented and handed over.
Excellent · 60+ Google reviews · Founded 1997 · £10m liability cover












