A single server can be colocated in a UK data centre from £44 a month plus VAT, and a private 42U rack starts from around £259 to £650 a month before power and bandwidth. The monthly total depends on three things you can measure today, which are the amps your kit draws, the transfer you need and how many times a month someone has to touch the hardware. Work those out first and the quotes become easy to compare.
What does single-server colocation cost in the UK?
UK Servers lists three single-server packages. Colocation 100 is £44 a month plus VAT with up to 0.4A of power and 20TB of monthly transfer. The next package up is £79 a month plus VAT with up to 1A, and the third is £99 a month plus VAT with up to 1A. Installation and racking are included, along with four 15-minute remote-hands requests a month.
In London, VeloxServ lists 1U at £55 a month with 0.5A and 10TB of transfer, 2U at £75, 3U at £90 and 4U at £105. Check on its quote whether VAT is on top.
Published monthly price of single-server colocation
Monthly price of entry packages as published, checked 4 November 2026. UK Servers prices exclude VAT.
View the data
| Category | £ per month |
|---|---|
| UK Servers 0.4A | £44.00 |
| VeloxServ London 1U | £55.00 |
| VeloxServ London 2U | £75.00 |
| UK Servers 1A | £79.00 |
| VeloxServ London 3U | £90.00 |
| UK Servers 1A 4U | £99.00 |
| VeloxServ London 4U | £105.00 |
These offers are time-limited and were checked on 4 November 2026, so confirm on the brand's own site before you buy. The figures are published tariffs, not a national average, and they show where small deployments start rather than what the cheapest possible service costs.
Why power matters more than rack units
Compare the power allowance before you compare the height of the server. UK Servers' £44 package allows 0.4A, while its £79 package allows 1A, so the extra money buys electrical headroom as well as a different tier. If your server draws more than the allowance, UK Servers lists overage power at £8 a month per 0.1A.
Measure the real draw from your power distribution unit or the server's management interface at normal and busy load, then pick a package with room above that. A server that sits at 0.35A in the quiet hours and peaks above 0.4A will cost more than its headline price suggests.
How much is a quarter, half or full rack?
Rack prices vary because operators bundle different things. Netwise lists a lockable 10U quarter rack at £119 a month, a 20U half rack at £209 and a 42U full rack at £259, with power, ports and addresses priced as separate lines. Fast2host lists a 10U quarter cabinet from £250 a month, a 21U half cabinet from £425 and a private 42U cabinet from £650, with dual power feeds and network ports in the description.
Published monthly starting price of quarter, half and full racks
Starting monthly price for each rack size. Netwise lists space only, while Fast2host lists packages, so the two are not like for like.
View the data
| Category | Netwise space only, £ per month | Fast2host from, £ per month |
|---|---|---|
| Quarter rack | £119.00 | £250.00 |
| Half rack | £209.00 | £425.00 |
| Full 42U rack | £259.00 | £650.00 |
The two sets of numbers are not like for like. One shows space with extras priced separately, and the other shows packages with power feeds and bandwidth described in the offer. Ask each bidder for a quote for the same load, port speed and bandwidth, and compare the totals.
What does a full rack really cost per month?
Netwise's calculator shows the building blocks well. It lists £70 a month per amp of power, £30 a month for dual A and B feeds with PDUs, and £2 a month per IPv4 address. For a 42U rack with 4A of power, dual feeds and one address, the visible components are £259 plus £280 plus £30 plus £2, which comes to £571 a month, or £6,852 over twelve months.
That is our own sum from published prices, not a quote. It leaves out any bandwidth commitment and VAT, and it assumes 4A suits your equipment. Its value is in showing how the same cabinet price can produce a very different bill once power is added.
When does colocation beat a server room or your own data centre?
Colocation fits when you want the building, power, cooling and connectivity without owning them. VeloxServ states that you supply the hardware and it supplies power, cooling and connectivity, and Fast2host describes housing customer servers in its own UK data centre from single-server space to private cabinets. That splits the facility decision from the application decision.
A server room or owned facility deserves a closer look when demand is predictable, you are willing to staff and maintain the building, and a lifecycle cost model supports the investment. We found no public figure for the point at which owning becomes cheaper, so run your own comparison with space, power, cooling, staffing, resilience and connectivity for each option over five years.
Two practical questions decide many cases. First, can the business keep working if the wide-area link fails? If not, keep some processing on site. Second, who patches, backs up and restores the system? A facilities service level agreement does not replace your recovery plan.
Which UK colocation providers are worth shortlisting?
There is no reliable customer-share ranking, so we cannot call any provider the most popular. A use-case shortlist is more honest, and every row below comes from the operator's own page.
| If you need | Look at | Why |
|---|---|---|
| One existing server at a low entry price | UK Servers | Published packages from £44 a month plus VAT with clear power and transfer limits |
| A small London slot | VeloxServ | 1U to 4U London packages priced from £55 a month |
| A rack where you choose the power and ports | Netwise | Space, amps, ports and addresses priced as separate lines |
| A private cabinet in a Cambridge facility | Fast2host | Quarter, half and full cabinets from £250, £425 and £650 a month |
| Dense London interconnection | Telehouse | Says customers can connect to over 1000 carriers, ISPs and ASPs |
Telehouse is the one to look at when your application depends on particular networks. It describes five London data centres and says its close proximity to the City and Canary Wharf makes it a low-latency point for trading exchanges. It publishes no standard tariff on that page, so you will need a quote. If your users are mostly outside London, ask for measured latency to your own endpoints before you pay for a London address.
Which connectivity has flexible terms for a new factory site?
Flexible bandwidth and flexible contract length are different things, so check both. Three Business Broadband offers 12 or 24 month plans with no upfront costs, unlimited UK data and a 30 day money-back guarantee. That suits a new site that needs to be online quickly while a permanent connection is arranged.
Vodafone's Dedicated Internet Access is described as a private, uncontended connection with bandwidth you can scale. Its displayed offers run on 60 month terms, and it charges no connection fees on its 36 month and 60 month contracts, subject to a site survey. We did not find a rolling-month factory service in the pages we checked, so ask any supplier about relocation, early termination and adding sites in writing.
A sensible pattern for a staged rollout is a quick, tested opening-day link followed by a separately procured permanent circuit.
What should you check for UK data protection?
If the provider will process personal data for you, UK GDPR expects a written contract with the right terms. The ICO's guidance on what a controller and processor contract must include lists the minimum terms, including processing only on the controller's documented instructions. The ICO notes that this guidance is under review following the Data (Use and Access) Act, so check for updates.
A space-only arrangement, where the provider cannot read your data, may sit differently from a managed service. Ask your data protection adviser which applies to you before you sign.
How do you choose a provider?
Start with your measurements and a short list of questions. Ask each provider for the same written specification, then compare totals.
- What power is included, and what happens above it?
- How much transfer and which port speed are included?
- How many remote-hands requests are included, and what does an extra one cost?
- What is the minimum term, and how much notice is needed to leave?
- Which exact building will hold your equipment, and can you visit it?
Visit the building if you can. Look at access control, power and cooling arrangements, and how deliveries and engineer visits work. A quote that answers all five questions in writing is usually the one to take forward.
Sources
- UK Servers, Single server colocation, 2026
- VeloxServ, London colocation, 2026
- Netwise, Colocation calculator, 2026
- Fast2host, UK server colocation and rack space, 2026
- Telehouse, London data centres, 2026
- Three Business, 5G Business Broadband, 2026
- Vodafone Business, Dedicated Internet Access, 2026
- ICO, What needs to be included in the contract, 2026
