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Engineer at a power distribution panel in a data centre

Data Centre Fit Out and Infrastructure in London

Our data centre fit out service upgrades server rooms and data halls in London: power, cooling, containment, cabling and monitoring, installed while your systems stay live.

In Manchester we expanded a live data centre for a healthcare technology client with zero service interruptions.

Trusted by Leading Businesses

  • Trainline
  • Auto Trader
  • YouTube
  • Medusa
  • Fuse
  • Drake's
  • POST
  • Close Connection
  • Marnie.
  • Vortex Post
  • Blob
  • Minds Ahead
  • Miiissy
  • Fora
  • gama healthcare
  • Equinix
  • Hubble
  • B-engineering

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Our data centre fit out expertise

A data centre fit-out happens next to equipment that cannot go down, so every change is staged and tested. Building from scratch? See data centre construction.

  • Power upgrades

    Dual power feeds, automatic transfer switches and redundant UPS.

  • Cooling

    Aisle containment and variable-speed fans to remove hot spots.

  • Raised floors

    Raised flooring for underfloor airflow and concealed cabling.

  • Fibre backbone

    Structured fibre cabling ready for higher network speeds.

  • Fire and security

    Gas-based suppression, biometric access and CCTV.

  • Monitoring

    Temperature, humidity and leak sensors on one central panel.

How we upgrade a live data centre

We survey the room, the electrical backbone and the cooling, and agree the change windows.

Mechanical and electrical design coordinated as one, then a lump-sum price.

Works staged so live systems stay up.

Each system tested and commissioned before the switch.

Commissioning reports for your audits, then aftercare from the same team.

Engineer working on a server board in a data centre

Free audit of your server room

Running out of rack space, power or cooling? We visit, look at the room, the supply and the cooling, and talk you through the options. No obligation.

Server racks and overhead cable trays in a data hall

Free Data Centre Construction & Fit-Out Guide

A clear, step-by-step guide to data centre construction and fit-out, covering planning, design, budgeting and compliance essentials.

Why clients choose Craftex for data centre fit out

  • Zero downtime

    Manchester was expanded without a single service interruption.

  • Mechanical and electrical as one

    One design, so trades never clash.

  • Audit-ready paperwork

    Commissioning reports for your compliance audits.

  • Around 60% in-house

    Our own labour, tighter control of quality.

  • Ahead of programme

    Every project delivered ahead of programme and on budget.

  • Lump-sum pricing

    A clear scope and a fixed number.

Independently Certified Contractor for Quality, Safety & Reliability

  • British Assessment Bureau
  • British Assessment Bureau Certificate
  • British Assessment Bureau
  • Constructionline
  • CHAS Accredited Contractor
  • Alcumus

Data centre fit out: your questions

Can you upgrade a data centre without downtime?

Yes. In Manchester we upgraded the electrical backbone and cooling of a live data centre with zero service interruptions.

How long does a data centre fit-out take?

Most of the programme is set by what has to stay live. Our Manchester expansion, 310 sq m inside a working data centre, was completed in 12 weeks.

Can you help with energy use?

Yes. Cooling choices drive most of it; in London the new cooling units cut energy use by 15%. Read energy efficiency in data centre construction.

What size of data centre fit-outs do you take on?

Data centre fit-outs and upgrades from £100,000 to £10M+.

Do you also build new data centres?

Yes. See data centre construction and our London data centre case study.

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