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Outsourced IT Support · London

Outsourced IT Support in London

At Sereno, we're more than an outsourced IT support company. We act as your full in-house IT team without the full-time cost, working as an extension of your business to keep systems running smoothly and prevent IT issues before they disrupt you.

Our people-first, proactive approach keeps you secure, empowers your people, and turns IT from a burden into a genuine competitive advantage, so you can stay focused on business growth.

If you're looking for IT support in London, Sereno can act as your outsourced IT team, providing day-to-day support and wider technology expertise as your business grows.

Talk to an IT Advisor See what we cover

Hire one person, or gain a team

In-house hire

  • One person, roughly 9–5
  • Holiday & sick-day gaps
  • One individual's skillset
  • Salary + NI + training + kit

With Sereno

  • A whole team, 7am–7pm
  • Always-on, no single point of failure
  • Certified specialists in every field
  • One predictable monthly fee
Get a tailored quote
Outstanding CloudTango Excellent

Partnered with the best · Certified by Microsoft, Google & Cyber Essentials

  • Gold Microsoft Partner
  • Google Workspace Partner
  • Cyber Essentials Plus
  • SentinelOne
  • Jamf
  • Ninja RMM
  • Dell Technologies Authorized Partner
  • SonicWall
  • Bitdefender
  • KnowBe4
  • DNSFilter
  • Keeper
  • Datto
  • Veeam Cloud & Service Provider Registered
  • RoboShadow
  • Augmentt
  • Cyber Essentials
  • CloudTango

Outsourced IT · London

Proven expertise in outsourced IT support

Sereno is a trusted outsourced IT support provider helping 75+ businesses manage their technology without building an in-house team. As your outsourced IT partner, we bring together day-to-day support and proactive IT management, with services tailored to your requirements.

Our team works as an extension of your business, providing fast response times, clear communication and reliable support with minimal disruption to your business operations.

Hand your IT to a trusted partner instead of hiring and managing it all in-house. With our outsourced IT services, you gain access to specialised expertise that covers every discipline, on-site and remotely:

  • Helpdesk & day-to-day support

    Your team's first port of call

  • Proactive monitoring

    Issues caught before they bite

  • Cyber security

    Layered protection, always on

  • Cloud & infrastructure

    Email, storage & servers

  • Backup & recovery

    Business continuity covered

  • IT strategy & advice

    A dedicated Technology Advisor

All of it, one partner

In plain terms, it's your entire IT department, run by one accountable partner, and that partner is Sereno, delivering the full managed IT services stack without the overhead of an internal team.

Talk to an IT Advisor

IT Outsourcing London · Benefits

Benefits of outsourcing IT support

Beyond the peace of mind of a knowledgeable team on hand in any emergency, outsourcing your IT support offers a range of indisputable business benefits.

  • Cost efficiency

    No hiring overhead

    You reduce costs by avoiding the need to recruit, train and manage an internal IT team, and we minimise costly downtime and hardware replacements by proactively maintaining your infrastructure before problems bite.

  • Enhanced productivity

    Less downtime

    Technical issues get fixed promptly so your people stay on task, and a professional team available whenever you need it lets the business focus on its core work rather than IT distractions.

  • Access to varied expertise

    Whole-team expertise

    An outsourced provider brings qualified specialists with deep expertise across every field of IT, so any issue, however complex, is resolved quickly and effectively, which is hard to match with a single in-house hire.

  • Greater scalability & flexibility

    Scalable solutions

    As your business grows, we align your IT infrastructure with the growing scope of your operations, scaling seamlessly and keeping you current with the latest technology so IT never becomes the bottleneck.

  • Enhanced security

    Built-in cyber security

    Modern cyber threats demand professional expertise. Outsourced IT includes managing your cyber security, proactively preventing and efficiently resolving security issues across your organisation.

Premium quality outsourced IT support in London is just a call away.

Talk to an IT Advisor

Outsourced IT Services · What we cover

Our outsourced IT support services

Sereno provides fully managed outsourced IT support in London and the surrounding areas, an end-to-end suite of managed IT services spanning helpdesk support and cyber security to keep your systems secure and efficient.

Outsourced IT Support London · Why Sereno

More than support, a genuine partnership

Promptly resolving your IT needs, supporting your digital transformation and ensuring business continuity should come as a given. At Sereno, we go beyond that. Hover a card to see how.

  • We make IT support even more affordable

    SERENO PERK

    Invest in cyber security with us and we'll reduce your support fee, fewer issues, lower risk. Cost-efficient service never means reduced service quality; you still get our full suite of outsourced IT support in London.

  • We'll split the cost of your next IT project

    Our support plans include optimising your existing IT ecosystem. Since that investment benefits us both, we split the labour cost of the project with you.

  • We bring all the expertise you need under one roof

    From network monitoring and cyber security to cloud, infrastructure and IT strategy, Sereno brings together expertise across your whole IT environment. As a Microsoft Partner and Google Partner, we support the platforms and business systems you use every day, all through one accountable team.

  • No long-term commitment

    Switching IT partners takes trust. Every partnership is 30-day rolling for the first year and backed by our Partner Experience Guarantee for good.

  • We'll cover 25% of your cloud migration

    Cloud brings flexibility, scalability and security. If you're not there yet, Sereno covers 25% of your migration cost so you can become more efficient and competitive.

  • We tailor our IT to support your business

    As your outsourcing company, we take time to understand your support requirements. With support tailored to your business, you get better control over operational costs, improve the way your team works and boost business productivity.

A Trusted Outsourced IT Company · Our Process

How we take IT off your plate

A clear path from first call to going live, most of the work happens behind the scenes. Hover a step to see what's involved.

  1. First call

    Initial consultation

    30-minute call

    We start with a consultation to understand your specific IT needs, challenges and business goals, so we can tailor our services to fit.

  2. Audit

    Assessment & planning

    A short walkthrough

    We perform a thorough assessment of your current IT infrastructure and processes, then build a customised support plan setting out exactly what we'll provide.

  3. Setup

    Implementation

    No involvement

    Our specialists set up monitoring, configure software and perform the integrations needed for efficient support.

  4. Live

    Ongoing support & management

    Whenever you need us

    Dedicated IT professionals provide continuous troubleshooting, maintenance and updates, with proactive monitoring to prevent issues and keep performance optimal.

  5. Ongoing

    Reviews & reporting

    Regular check-ins

    Regular performance reviews and detailed reports keep you informed about everything happening across your IT systems.

Industries

Sectors We Support

Our Happy Clients

Google Reviews
Sereno IT Support

70 Google reviews

Write a review

  • Dominik

    a year ago

    We have partnered with Sereno on a range of IT projects and appointed them as our managed IT services provider and the experience has been exceptional from the…

  • Jo Joynes

    a year ago

    Sereno IT are innovative in their approach to IT support. We moved to Sereno IT in Jan 2023 and have not looked back.

  • AJ Shazad

    a year ago

    I have known Sereno (and their previous business) since 2016 as they are the IT solutions providers of our private credit fund with complex operations.

  • Tim Field

    a year ago

    Great company, very efficient with some wonderful individuals supporting

  • Scott Simmons

    a year ago

    We have used Sereno for our IT support since May 2023 and find the team to be quick, informative and clear in terms of describing any work carried out to…

  • Adam Wright

    a year ago

    We've been working with Sereno for 18 months now and have been impressed by their solution oriented approach.

  • MB

    a year ago

    Great service, rapid response time, friendly, professional technicians - couldn't be better. Very glad we switched providers.

  • Daljit Sumal

    a year ago

    Amazing service as always. Had a few queries which were dealt with swiftly and calmly.

  • Kevin Williams

    a year ago

    Sereno have always responded quickly to our requests/issues. Very polite and professional staff who keep you informed of progress of any problem solutions…

  • Richard Martin

    a year ago

    My company moved to Sereno IT over the new year and we have found the process not only to be painless but i would describe it as enjoyable.

  • Annabelle Pugh

    2 years ago

    We have been clients of Sereno IT's since summer 2023 and we have been extremely happy with the service we have received to date.

  • Dana Ozola

    2 years ago

    These guys are new in the market, but they provide outstanding service. What is important to our company, that they comprehend hierarchy of team and therefore…

  • John Holmes

    2 years ago

    We have been a customer of Sereno since Summer 2023 and the experience since has been overwhelmingly positive.

  • Alexander Moss

    2 years ago

    Great company, full of energy and very attentive to our needs. You really get a personalised service, with the technical ability of a much larger company.

  • James Goodwin

    2 years ago

    My business has recently adopted Sereno IT Support as our ITSM partner over the last quarter.

  • Madeleine Barley

    2 years ago

    Excellent, speedy, friendly and very 'human' service. Intuitive and easy to use platform.

  • Chris Needham

    3 years ago

    I've had the pleasure of working with Sereno for several months now, they are honestly absolutely fantastic.

  • shima

    9 months ago

    Sereno is the most reliable IT support team

CloudTango Reviews

  • “Sereno have been a reliable and valued partner, with a fantastic team of highly responsive and capable technicians, backed by proactive and forward-thinking leadership.”

    John Holmes

    IT Manager, Oikos Storage Ltd

    CloudTango Review

  • “After a couple of challenging years with our previous IT support company, moving to Sereno IT in 2024 has been one of the best business decisions we've made.”

    Joanna Socko

    Franklyn James

    CloudTango Review

  • “IT is no longer a burden or even a part of my work week. I know the team are looked after quickly if they have an issue, and I get all the advice and guidance…”

    Jamie Waldegrave

    COO/CFO, Urban Logistics

    CloudTango Review

  • “The advice we've had from Sereno means we can make informed decisions about what our company actually needs and we know we can implement changes easily.”

    Alice Lees

    Hutton Consulting

    CloudTango Review

  • “Sereno IT provided a solution that perfectly aligned with our needs. Not only did they help us save on costs, but they also ensured our systems are secure and…”

    Nigel Shearsby

    Statons Estate Agents

    CloudTango Review

  • “We've been working with Sereno IT for a year now and continue to be impressed by their forward-thinking approach.”

    Katie Sexton

    Archio Ltd

    CloudTango Review

  • “Sereno are an innovative IT company who make solving your IT issues quick and simple with their vast knowledge.”

    Jo Nauman

    AKT Productions Limited

    CloudTango Review

  • “We have been working with Sereno for around a year and half now, and the support they've provided has been truly invaluable to our business.”

    Fay Allen

    Greencore Homes Ltd

    CloudTango Review

  • “We've been working with SERENO IT and are very happy with their service. Communication is always smooth and efficient, and their team is extremely helpful and…”

    Aziz Selcuk Tuncer

    Ant Yapi UK Ltd

    CloudTango Review

  • “Reliable, Responsive, and Proactive — A True IT Partner. We switched to Sereno after experiencing repeated delays and poor communication from our previous IT…”

    Nisha Patel

    Strata Property Group Ltd

    CloudTango Review

  • “We have worked with Sereno for a couple of years and have been really pleased with them, they are much better than our previous IT support.”

    Justin Elvey

    Director, Big Potato Limited

    CloudTango Review

  • 5-star rated on Google and CloudTango

  • 75+

    Companies and 2,300+ people supported

  • 98%

    Client retention since inception, with zero quality-related churn

  • 100%

    Staff retention last year, so you work with the same accountable team

  • Growing

    We helped our clients grow 14% on average last year

Case studies

Client Success Stories

London businesses come to Sereno when they want IT to feel organised, owned and easier to manage. Real outcomes for real businesses.

  • Hutton Consulting

    Case study · Hutton Consulting

    The IT Relationship Hutton Consulting Was Looking For

    Modernised cloud and identity setup to support hybrid working, with security and strategy from a partner they could finally trust.

    Read the case study
  • Statons Estate Agents offices

    Case study · Statons Estate Agents

    How Statons Transformed Operations with Microsoft 365

    Took ownership of devices, onboarding and security so the operations team could focus on customers, not IT.

    Read the case study
  • Urban Logistics REIT

    Case study · Urban Logistics REIT

    Reliable IT Support for a Listed Property Investment Company

    Built an IT roadmap aligned to growth, with predictable monthly investment, dependable support and clearer reporting.

    Read the case study

Frequently asked questions

Quick answers on cost, in-house vs outsourced, fit, and what we cover.

Businesses outsource IT support services to external IT service providers for a number of reasons, including access to specialist knowledge, advanced cyber security solutions, cost savings, improved productivity, and enhanced scalability.

We know that switching to a new provider can feel disruptive, so Sereno manages the transition carefully to minimise the impact on your team. We liaise directly with your existing provider, review your IT environment, document systems and access, set up the required management tools, and agree your core support processes before go-live. The full onboarding process typically takes around 30 days.

The primary difference between outsourced and internal IT teams is the location of the IT staff. While in-house IT support involves hiring and managing a dedicated IT team within your organisation, outsourcing means hiring an external company.

In-house IT support offers more personalised service and immediate on-site assistance. On the other hand, outsourcing provides access to a broader range of specialist expertise at a lower cost and allows for greater flexibility and scalability without the overhead of maintaining an internal IT department.

Keep reading

What's Next For You?

Guides and reads on outsourcing, IT strategy and getting more from your IT.

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Question not answered yet?

Ask us about pricing, services or switching to outsourced IT. Send a message to start the conversation.

What we'll cover on the call

  • How your IT is handled today, where an in-house hire falls short, and where your cyber security risks sit
  • The real cost of an internal IT person vs. outsourcing to a team
  • Coverage gaps: holidays, sick days and out-of-hours support
  • What a fully outsourced IT department would look like for you

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