Colocation Services UK 2026: Costs, Providers & Rack Space Quick answer
Colocation lets your business place its own servers and networking equipment inside a professional third-party data centre instead of running them from an office or private server room.
You normally continue to own and control the hardware, while the colocation provider supplies:
rack space
resilient power
cooling
physical security
internet and carrier connectivity
monitoring
remote hands
backup generators and UPS systems
Current UK colocation pricing can start from around £45-£55 per month for a single 1U server , while quarter racks commonly start around £225-£250 per month and full racks can start from roughly £650-£1,000+ per month . Higher power, bandwidth, London locations, private cages and specialist support can increase the cost significantly.
Colocation is usually best for businesses that still need to own physical infrastructure but want better resilience, connectivity and security than an office server room can provide.
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Useful links from our article :
What is Colocation?
How Does Colocation Work?
Benefits of Colocation for Small UK Businesses
Choosing the Right Colocation Provider in the UK
Colocation vs Cloud: What’s Right for Your Business?
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Authored by: Ally Cox (Business Technology & B2B Services Specialist 10+ Years’ Experience)
Reviewed by: James Ward (Telecoms Specialist, 12+ Years Experience)
Last Updated: August 2026
Key takeaways
Colocation means placing your own servers and hardware inside a third-party data centre .
Current UK pricing can start from around £45-£55/month for 1U , £225-£250 for a quarter rack , and £650-£1,000+ for a full rack .
Power consumption can have as much impact on price as physical rack space.
Colocation can provide stronger power resilience, cooling and physical security than an office server room.
Businesses retain control of their hardware while the provider manages the data centre environment.
Carrier-neutral facilities can give access to multiple network and cloud providers.
Remote Hands services can reduce the need for your own engineers to visit the data centre.
Colocation can suit predictable, specialist or legacy workloads that are not a natural fit for public cloud.
Businesses wanting no hardware ownership should compare managed cloud hosting or public/private cloud instead.
Always compare rack space, power, bandwidth, SLA, connectivity and Remote Hands together.
What is Colocation? Colocation, often shortened to colo , is a data centre service where a business rents space for its own IT equipment.
You supply the:
servers
storage
switches
firewalls
other hardware
The provider supplies the environment around them which typically includes:
secure rack or cabinet space
redundant power
UPS
backup generators
cooling
physical access control
connectivity
monitoring
fire detection/suppression
This removes the need to operate your own server room while still giving you ownership of the equipment.
How much does colocation cost in the UK?
UK colocation pricing varies substantially depending on rack size, power and location.
Current public pricing is around:
Colocation requirement Current UK starting-price examples
1U server
£45-£55/month
2U-4U
£55-£95+/month
Quarter rack
£225-£250+/month
Half rack
£425-£500+/month
Full rack
£650-£1,000+/month
High-power/private cage
Bespoke
Which colocation setup does your business need?
Requirement Best starting point
One server
1U colocation
2-4 servers
Several U
Small server estate
Quarter rack
Growing infrastructure
Half rack
Larger business environment
Full rack
Several racks
Private cage/suite
High-density compute
Specialist high-power rack
No desire to own hardware
Managed cloud instead
Benefits of Colocation for Small UK Businesses
Benefit Description Example
Cost savings
Reduced overheads
lower energy costs
Scalable pricing
A small financial firm can save on infrastructure costs by colocating servers rather than maintaining an on-site data centre.
Reliability and uptime
Redundant power supply
Cooling systems
SLAs (Service Level Agreements)
An e-commerce business can avoid downtime during peak shopping seasons by colocating to a reliable power and connectivity facility.
Enhanced security
Physical security
Cybersecurity
Compliance
A healthcare provider can securely store sensitive patient records in a compliant colocation data centre.
Scalability
Flexible options
Future-proofing
A growing tech startup can expand its server capacity seamlessly without relocating or upgrading its premises.
Improved connectivity
Redundant connectivity
Low latency
A media company can deliver content reliably through low-latency connections offered by the colocation provider.
Focus on core business
Outsource infrastructure
Dedicated IT teams
A law firm can focus on delivering client services while outsourcing IT infrastructure management to a colocation provider.
Choosing the Right Colocation Provider in the UK When selecting a colocation provider, consider the following factors:
Your location
Choose a facility close to your office for easy access or near your target audience for improved performance.
Uptime guarantees
We suggest you look for providers offering SLAs with 99.9% or higher uptime.
Security measures
You should ensure robust physical and network security standards.
Scalability
Select a provider with flexible options to grow as your business expands.
Compliance
Verify that the facility complies with GDPR and relevant industry regulations.
Support services
Opt for providers offering remote hands, maintenance, and monitoring services.
Colocation in the UK: Popular UK Colocation Providers:
Colocation vs Cloud The main distinction is ownership.
Colocation
You generally:
own the hardware
and rent the infrastructure around it.
Public cloud
You generally:
rent computing resources
from a cloud provider.
Feature Colocation Public cloud
Hardware ownership
You
Provider
Upfront hardware cost
Higher
Low
Physical control
High
Low
Scalability
Requires equipment
Very flexible
Monthly cost
More predictable
Usage dependent
Legacy systems
Strong fit
Depends
Hardware maintenance
Your responsibility
Provider
Data centre infrastructure
Provider
Provider
Colocation vs managed private cloud Private cloud can provide dedicated infrastructure without requiring you to own or physically manage the underlying servers.
Colocation Managed private cloud
You own hardware
Provider usually owns hardware
You control physical infrastructure
Provider manages infrastructure
More hardware responsibility
More management included
Capital expenditure possible
Mainly service expenditure
Best for existing hardware
Best for managed dedicated cloud
What should a colocation provider include? A strong business colocation service should normally provide:
Resilient power
Look for:
UPS
backup generation
A/B power feeds
appropriate redundancy
Cooling – Data centre cooling should be designed around the equipment density being hosted.
Physical security
Typical measures can include:
CCTV
access cards
secure perimeter
mantraps
biometric or multi-factor access
24/7 security personnel
Exact controls vary by facility.
Connectivity
Carrier-neutral facilities can provide access to several network operators rather than locking the customer into a single carrier.
Remote Hands
Remote Hands can cover simple tasks such as:
restarting equipment
replacing hardware
checking cabling
investigating faults
This can be particularly valuable if your IT team is based far from the data centre.
UK colocation providers to compare There are many UK data centre providers, ranging from large international operators to regional facilities and some major names worth considering include:
Best for: Large enterprises, connectivity-rich deployments and businesses needing access to extensive ecosystems.
Equinix offers global colocation, interconnection and Remote Hands services and advertises operational reliability above 99.999% across its platform.
Best for: London connectivity and carrier-neutral infrastructure.
Telehouse currently operates four UK data centres in London and provides access to extensive carrier and internet exchange connectivity.
Best for: Businesses seeking regional UK data centre locations.
Pulsant operates facilities across locations including:
Edinburgh
Newcastle
Rotherham
Milton Keynes
with quarter, half and full rack deployments available at selected sites.
Best for: Businesses wanting colocation alongside broader managed infrastructure and cloud services.
When comparing any provider, focus on the individual data centre rather than brand alone.
Which colocation provider is best for your business?
Requirement What to prioritise
London connectivity
Carrier-rich London facility
Regional infrastructure
Data centre near your locations
Cloud connectivity
Cloud on-ramps/interconnection
Existing IT team
Accessible facility
Limited IT resources
Strong Remote Hands
High-density equipment
Power/cooling capability
Mission-critical workloads
Redundancy and SLA
Multi-rack deployment
Private cage/suite
Is colocation right for your business? Colocation is worth comparing if:
you already own business-critical servers
your current server room is expensive
power or cooling is unreliable
physical security needs improving
you need stronger connectivity
workloads are predictable
moving everything to cloud is unsuitable
you want to build a hybrid cloud environment
It will be less suitable if:
you have no existing hardware
your business wants completely outsourced infrastructure
workloads change dramatically
you have very limited IT expertise
SaaS can replace most of your existing systems
In those cases, managed cloud services may make more sense.
Final verdict Colocation can give businesses the control of owning their infrastructure without having to operate their own data centre and the best reasons to consider it are:
resilient power
professional cooling
stronger physical security
high-quality connectivity
scalable rack capacity
access to Remote Hands
support for hybrid cloud
Current UK entry pricing can begin at around £45-£55/month for a single server , while quarter racks start at roughly £225-£250 and full racks around £650-£1,000+ based on current advertised examples.
But the cheapest rack is rarely the whole story, so you should compare:
power
bandwidth
redundancy
location
support
connectivity
growth capacity
before choosing a data centre.
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Colocation FAQs What is colocation?
Colocation is a service where your business places its own servers and networking equipment inside a third-party data centre and pays for rack space, power, cooling, security and connectivity.
How much does colocation cost in the UK?
Current advertised UK prices start at around £45-£55/month for a single 1U server. Quarter racks can start around £225-£250, while full racks may start around £650-£1,000+ per month. Power and bandwidth can increase the final price considerably.
What is a colocation rack?
A rack is a standard cabinet used to hold servers and networking equipment. Businesses can rent individual rack units or part/all of a cabinet.
What does 1U mean?
1U is one unit of vertical rack space, approximately 44.45mm high. Standard server cabinets are commonly around 42U high.
What is a quarter rack?
A quarter rack typically provides around 9U-11U of secure server space, although exact sizes vary between providers.
Is power included in colocation pricing?
Usually some power allocation is included, but providers have different models. High-power equipment can significantly increase the monthly price.
Does colocation include internet?
Some packages include bandwidth, while other facilities require customers to purchase internet transit or private connectivity separately.
What is Remote Hands?
Remote Hands is on-site technical assistance for tasks such as checking equipment, replacing components, rebooting servers or investigating faults.
Is colocation more secure than keeping servers in an office?
A professionally managed data centre can provide stronger physical security, resilient power, fire protection and controlled access than a typical office server room.
Is colocation cheaper than cloud?
It depends on the workload. Colocation can be cost-effective for predictable infrastructure that you already own, while cloud can be more flexible when demand changes frequently.
Is colocation the same as private cloud?
No. With colocation you normally own the physical hardware. In a managed private cloud, the provider generally supplies and manages the infrastructure.
Can colocation connect directly to Azure or AWS?
Many carrier-neutral data centres provide cloud connectivity or access to partners that can create private connections to major cloud platforms.
Is colocation suitable for small businesses?
Yes, particularly where a business has one or more important physical servers but does not want to maintain a dedicated server room.
Should I choose a London data centre?
Not necessarily. London provides strong connectivity ecosystems, while regional facilities can offer easier physical access or different pricing. Compare the requirements of the workload.
What should I ask a colocation provider?
Ask about rack space, power, bandwidth, redundancy, Remote Hands, physical security, SLA, carriers, cloud connectivity, contract terms and the cost of future expansion.
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Hi, I’m Ally Cox , a senior copywriter and blogger at CompareYourBusinessCosts.co.uk, the UK’s trusted platform for comparing business services.over a decade of experience in the B2B sector, I specialise in simplifying complex topics like leased lines, VoIP, business energy, HR and payroll solutions, accounting software, and EPOS systems .HR, copywriting, and business operations- from clocking-in systems to card machines and office technology .informed, confident decisions when choosing products and services that improve efficiency and save money.
