Unlimited IT Support
Your team can ask for help whenever an IT issue comes up, without worrying about individual ticket costs. Our London IT support company offers IT support packages with unlimited remote assistance for a clear monthly fee.
Trusted IT Support Company in London
IT Support London
Sereno provides reliable IT support for London businesses that need their technology to work securely and without disruption. We take care of day-to-day managed IT support, cyber security, cloud services and IT management, giving your team a dependable IT foundation and fast access to help when they need it.
- A London-based team with local London expertise
- Proactive IT support to prevent problems and reduce downtime
- Fast response times, with 75% of issues resolved remotely within minutes
- On-site IT support for issues that need a hands-on fix
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Need reliable IT support in London?
- Trusted by 75+ London SMEs
- Fully managed and co-managed IT support
- Transparent pricing and clear communication
- IT services that can grow with your business
Accreditations & Partnerships
Accredited where it matters
- Microsoft Solutions Partner
- Google Workspace Partner
- Cyber Essentials Plus
- Cloudtango Top 25 UK MSP
- Cloudtango MSP UK Select 2026
- IT Nation Evolve
IT Support London
Proven Results, Measured in Numbers
Our IT support services in London are built around fast response, dependable support and long-term client relationships.
Rated on Google and CloudTango
75+Companies and 2,300+ people supported
98%Client retention since inception
100%Staff retention last year
14%Average client growth last year
12 YearsAverage professional services experience per engineer
76%Issues resolved same day
4+ YearsSupporting London businesses since 2022
IT Support London
Our Managed IT Support Services in London
One experienced team for day-to-day support services, security, cloud platforms, devices, infrastructure and strategic guidance.
Not sure which IT services your business needs?
IT Services London
What Is Included in an IT Support Package?
Managed IT support from Sereno gives your team reliable day-to-day help, proactive care and strategic guidance. We focus on minimal disruption to your business and support that is easy to access.
About Our London IT Support Company
Meet Sereno London IT Support
Sereno is a London-based IT support provider backed by over 30 years of combined experience running managed service providers. Our team has hands-on experience with the systems, security and day-to-day IT support London businesses rely on.
Today, we support more than 75 companies and 2,300 people, helping them keep their IT secure and easy to manage. Sereno has also been recognised on Cloudtango’s MSP Select UK 2026 list, highlighting us among leading managed service providers in the UK. As a Microsoft Solutions Partner and Google Workspace Partner, we have recognised expertise across the platforms many businesses use every day.
Sereno is Cyber Essentials Plus certified, reflecting independently verified security controls. With a strong local presence in London, we provide personalised local support from a team that understands your business.
Why Sereno
Why Choose Sereno IT as Your IT Support Partner?
Sereno is an award-winning company providing IT support in London to more than 75 businesses. We take ownership of your technology, helping you reduce disruption and make IT easier for your team.
Cyber Security Built Into Your IT
Sereno puts security at the core of your entire IT environment. Layered protection, trusted security tools and support aligned with Cyber Essentials help reduce risk and keep your business secure.
Prevent Problems Before They Happen
We proactively monitor your IT infrastructure, looking for risks and recurring issues before they start affecting your team. Sereno investigates the root cause of problems and works to prevent the same issues from coming back.
Clear Costs, Complete Confidence
Sereno keeps pricing clear, with guidance on what is included, optional or unnecessary for your business. You only pay for on-site assistance when you need it, with no long-term contract commitment in your first year.
Local Support, Global Expertise
Sereno’s London team gives you local support backed by recognised Microsoft and Google expertise. You get direct access to experienced IT support specialists who understand your business.
Looking for a London IT support provider that puts your business first?
How Quickly We Respond to IT Support Issues
Employees can get IT help through live chat or book a convenient time directly with an experienced engineer. Most issues are resolved through remote support services, while business-critical problems are prioritised immediately.
Major outages or issues affecting multiple people receive immediate attention, with a 15-minute response target.
Email, software, access and device issues are typically resolved remotely without an office visit.
Learn about Remote IT SupportWhen hands-on support is required for hardware, networking or other physical IT issues, an engineer will attend your London office.
Learn about Onsite IT SupportResponse and resolution targets
| Priority | When it applies | Response | Resolution |
|---|---|---|---|
| Critical | More than one person is affected by the same issue, or a business-critical system is stopping multiple people from working. | 15 minutes | 1 hour |
| High | One person is unable to work, or the request is raised by a VIP user. | 30 minutes | 2 hours |
| Medium | A change request, such as access to a file, folder, mailbox or system. | 1 hour | 4 hours |
| Low | Planned work, such as a new employee setup request or a new laptop or PC build. | 2 hours | 8 hours |
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Critical
More than one person is affected by the same issue, or a business-critical system is stopping multiple people from working.
Response 15 minutes Resolution 1 hour -
High
One person is unable to work, or the request is raised by a VIP user.
Response 30 minutes Resolution 2 hours -
Medium
A change request, such as access to a file, folder, mailbox or system.
Response 1 hour Resolution 4 hours -
Low
Planned work, such as a new employee setup request or a new laptop or PC build.
Response 2 hours Resolution 8 hours
Trusted by London Businesses
Google Reviews
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Dominik
11 months ago
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Jo Joynes
a year ago
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AJ Shazad
a year ago
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Tim Field
a year ago
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Scott Simmons
a year ago
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Adam Wright
a year ago
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MB
a year ago
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Daljit Sumal
a year ago
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Kevin Williams
a year ago
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Richard Martin
a year ago
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Annabelle Pugh
2 years ago
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Dana Ozola
2 years ago
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John Holmes
2 years ago
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Alexander Moss
2 years ago
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James Goodwin
2 years ago
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Madeleine Barley
2 years ago
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Chris Needham
3 years ago
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shima
8 months ago
CloudTango Reviews
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“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
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“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
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“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
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“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
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“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
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“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
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“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
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“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
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“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
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“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
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“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
Case studies
Client Success Stories
Explore how Sereno supports businesses with practical IT solutions tailored to their needs.
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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 -
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 -
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
Getting Started
Switching IT Support with Confidence
Sereno coordinates the process with your previous provider, gives you a dedicated point of contact during onboarding and checks your IT environment to ensure a smooth transition.
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We Learn About Your Business
We start by understanding your existing IT setup, current support contract and what you need from your new IT support company.
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We Manage the Handover
Sereno liaises with your existing provider and coordinates the transfer of access, information and responsibilities, keeping work for your in-house team to a minimum.
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We Review Your IT Environment
Our team audits your systems, devices and existing processes so we understand what is working and where improvements may be needed.
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We Get Your Team Ready
We agree on the main support processes and make sure your employees know how to raise a request and get help from our support team.
Thinking about switching IT support?
Talk to an IT AdvisorIT Support Services London · Industries
London IT Services Designed for Your Industry
Different sectors have different demands on technology. Sereno provides London IT services
tailored to your business needs and shaped around the way your business works.
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Real Estate
Cloud systems, secure remote access and user support for teams working across offices, homes and properties.
Find out more -
Financial Services
Strong security for sensitive systems and data, with support for regulatory and operational demands.
Find out more -
Accounting
Secure access to client information, cloud support, email security and straightforward day-to-day IT.
Find out more -
Construction
Reliable access from offices and project sites, backed by endpoint protection and responsive IT support.
Find out more -
Manufacturing
Proactive maintenance and rapid response that help keep day-to-day operations moving.
Find out more -
Media
Cloud collaboration, hybrid working and secure access that help projects keep moving.
Find out more -
Insurance
Careful security configuration for sensitive customer information and the systems staff use every day.
Find out more
Looking for an IT partner that understands London businesses?
Frequently Asked Questions
Reliable managed services give businesses access to expert IT support without the cost of assembling a full in-house IT team. Sereno helps with day-to-day issues, ongoing IT management and longer-term planning, with services tailored to your business needs.
Choose Fully Managed IT Support if you want Sereno to take responsibility for your entire IT environment, from day-to-day support and security to devices, cloud systems and ongoing management.
Choose Co-Managed IT Support if you already have an in-house IT team but need extra capacity, specialist expertise or reliable UK-based support. Sereno works alongside your team, helping with routine support, projects and specialist requirements while your internal team stays in control.
Both options can scale with your business, so you get the right level of support for your business now and as you grow.
Choosing the right IT support company comes down to finding a team that understands your business needs, responds quickly and can scale with you. Look for clear service levels, flexible support packages and relevant industry experience, as well as local IT support when an on-site visit is needed. A good support provider should also take a proactive approach to maintenance and cyber security, helping prevent problems rather than simply reacting to them.
Sereno puts your experience at the centre of IT support, rather than judging good service by response times alone. Our Customer Experience Agreement (CXA) measures how well we communicate, take ownership and resolve issues, based on feedback from your team. We also look beyond individual support requests, fixing recurring problems and providing proactive guidance through a dedicated Technology Advisor.
Yes. Sereno offers fully managed IT support and can work as your outsourced IT support team, taking ownership of day-to-day support, IT admin, support and cyber security and ongoing management. This takes routine IT work off your CTO or founder while still giving them access to advice when important technology decisions need to be made.
Sereno’s support desk prioritises quick response times and minimising disruption. Around 75% of issues are fixed remotely within minutes, while more complex problems are passed to experienced engineers for further support.
The cost of IT support depends on your team size, current setup, security needs and the level of support you require. Sereno offers fixed monthly pricing tailored to your business, so you know what is included before you get started. Any on-site support, projects or one-off work is agreed upfront. See our IT support pricing for more information.
As a London business, we support businesses across London and its outer areas. We also support UK companies that have a London office or branch and need a local managed IT service provider for hands-on support.
Sereno helps make sure your IT keeps pace as the business grows. We streamline onboarding, offboarding and device management, while your support can flex with your headcount month by month. Every quarter, your dedicated Technology Advisor reviews your IT environment, service performance, cyber security and assets to identify priorities, reduce risk and keep your technology roadmap aligned with your business objectives.
We use remote support as the most cost-effective first step, with 75% of IT issues resolved remotely. If an issue cannot be fixed remotely, we arrange scheduled on-site IT support to resolve it in person.
Yes. Sereno works with remote and hybrid teams, providing day-to-day user support for businesses with employees working from different locations.
Sereno streamlines onboarding and offboarding so accounts, licences, devices and access are set up or removed consistently and on time. Automation around device builds and employee changes reduces manual admin and helps avoid delays. For new starters, a dedicated onboarding engineer manages the process end to end, making setup as smooth and non-disruptive as possible.
Sereno is Cyber Essentials certified at Plus level, demonstrating that its security controls have been independently verified. Our cybersecurity services include endpoint protection, email security, secure configurations and ongoing monitoring to help safeguard your business data.
IT Insights · Industry Expertise
From the Sereno Learning Hub
Practical guidance for businesses reviewing their IT support and planning a more proactive approach.
Visit the full Learning Hub-
Guide Managed IT Support
5 IT Problems Business Leaders Shouldn't be Dealing with
When access requests, device failures, and onboarding scrambles keep landing on your desk, the problem isn't your team, it's unclear IT ownership. Here's what five common IT problems actually reveal about your business processes.
ReadSereno IT Support Team · 10 min read -
Explainer Managed IT Support
What "Reactive IT" Is and Why It Causes So Many Business Problems
Reactive IT is when urgent issues drive all IT work, and the same problems keep returning. This is what that pattern looks like, why it persists, and the small changes that break it.
ReadSereno IT Support Team · 7 min read -
Explainer Managed IT Support
Why IT Support Is Important for Business?
Most small businesses manage IT through trial and error, and pay for it in downtime, security gaps, and wasted hours. Here is what structured IT support actually does for a business.
ReadSereno IT Support Team · 4 min read
Find us in London
Our office is based at 20 Red Lion Street, in the heart of central London, putting us close to many of the city’s key financial and business districts. From the City of London, Bank and Farringdon to Mayfair and the West End, we’re well placed to provide fast, reliable IT support to businesses across London and the surrounding areas.
20 Red Lion Street, London, WC1R 4PS