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IT Helpdesk · London

IT Helpdesk Services

Traditional IT helpdesks fail businesses because they only respond once problems arise, a reactive model that means repeated downtime, slow resolution, and frustrated teams.

We take responsibility for your entire IT environment, reducing disruption, strengthening security, and removing the day-to-day IT burden from your team with proactive support and clear ownership.

Trusted by London teams · Backed by the tools that keep you running

  • Microsoft Solutions Partner
  • Google Workspace Partner
  • Cyber Essentials Plus
  • SentinelOne
  • Jamf
  • NinjaOne
  • Datto Authorized Partner
  • SonicWall
  • Bitdefender
  • KnowBe4
  • DNSFilter
  • Keepr
  • Datto
  • Microsoft Teams

What our helpdesk does

What Does Our IT Helpdesk Do?

Unlike a reactive helpdesk, we work as an extension of your business, preventing issues at the root, owning every request end to end, and keeping your team moving.

  • Root-cause prevention

    We fix the cause, not the symptom, and lift the day-to-day IT burden off your team.

  • One accountable team

    Clear ownership and consistent support, from the first request through to full resolution.

  • Like your in-house IT

    We act as an extension of your business, so risks drop and nothing falls through the gaps.

  • 98 %

    Customer Satisfaction

  • 90 %

    Resolved within 1 hour

  • 75 +

    Years of IT Support Experience

The upside

Benefits of Our Helpdesk Support

Hover any card for the detail, the short version is what you scan, the full story is one hover away.

Increased Productivity

No phone tag and no stalled requests. A dedicated team that understands your systems handles support, book engineer time when it suits you, use live chat for quick issues, and manage every request in one place so nothing gets lost.

Cost Efficiency

We fix causes, not just symptoms, so major problems stop coming back. Our hybrid model prioritises efficient remote support for most issues, with onsite visits only when genuinely needed, preventing recurring faults and avoiding unnecessary call-outs.

Greater Reliability

Reliability comes from clear ownership. One team takes responsibility for issues from start to finish, so problems are fully resolved and not just patched. You’re not chasing updates or reopening tickets as the business grows.

Tailored Solutions

Every partner gets a dedicated technology advisor who learns your technology, your way of working and your priorities. Through structured onboarding and ongoing reviews we shape support that fits how your business actually works, and scales as you grow.

Enhanced Cybersecurity

Security comes from ownership and expertise, not just tools. A dedicated Technology Advisor reviews your security posture, and our Technology Assessment checks over 100 core areas of IT and cybersecurity best practice, scored clearly so you can see where you’re strong and where gaps exist.

What's included

Our IT Helpdesk Support Includes

Our IT helpdesk support service is built on three main pillars, day-to-day assistance, proactive maintenance, and strategic management.

  • Day-to-Day Assistance

    Unlimited access to a helpdesk team of experienced engineers covering the full spectrum of daily IT, password resets, onboarding, offboarding, access changes and licence management, plus support for devices, applications and systems. Organised around a service-desk model that prioritises correctly and follows through to full resolution.

  • Proactive Maintenance

    Proactive monitoring of your infrastructure, regular checks on servers and devices flag potential problems before they cause disruption. Where a third party is involved, such as your internet provider, we own the issue end to end so you have a single point of contact rather than juggling suppliers.

  • Strategic IT Management

    We act as your IT manager, monitoring performance, reviewing recurring trends and overseeing cyber security services to build a clear picture of what’s working and where risk is increasing. Structured oversight that helps you set priorities and make informed decisions, rather than reacting to issues as they arise.

Why Sereno

Why Choose Sereno IT for Helpdesk Support

Helpdesk services are reactive. Sereno is proactive IT support, we take full ownership with the technical expertise and clear accountability of our full managed IT services, so you don't chase multiple suppliers. Our engineers handle issues at the source, so your IT just works and you get the headspace to focus on growing your business.

Proactive, not reactive

We prevent issues by fixing root causes, not just clearing tickets as they arrive, so the same problems stop coming back.

One accountable team

No finger-pointing across suppliers. One team owns every request, from first contact through to full resolution.

Support you can actually reach

A support portal, live chat for quick questions, and booked engineer time, support that never relies on phone tag.

Fixed properly, for good

We investigate the cause, apply permanent fixes, and confirm it’s resolved so your team keeps moving.

Our Happy Clients

Google Reviews

70 Google reviews

Write a review
  • Dominik

    9 months 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

    6 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

IT helpdesk services are usually reactive focusing on quick fixes and resolutions. But Sereno's IT support helpdesk go further by taking full ownership of your IT systems, providing proactive support, and other services from everyday tasks to complicated issues with expert knowledge.

We handle the full range of day-to-day IT issues that affect how your business operates, from quick fixes to more complex problems that need proper investigation and fast resolution.

This includes support for:

  • User access and permissions
    New starters, leavers, role changes, password resets, and access to systems, files, and applications.
  • Devices and hardware
    Laptops, desktops, monitors, peripherals, setup, faults, replacements, and performance issues.
  • Microsoft 365 and core applications
    Outlook, Teams, SharePoint, OneDrive, email problems, file access, syncing issues, and application errors.
  • Connectivity and network issues
    Wi-Fi problems, VPN access, remote working issues, and office network faults.
  • Software and system issues
    Application crashes, updates, compatibility problems, and general system errors.
  • Security-related requests
    Account lockouts, suspicious activity, access reviews, and device security issues.
  • Onsite support when needed
    Hardware faults, installations, or issues that can't be resolved remotely.
  • Ongoing issue resolution
    Investigating recurring problems, identifying root causes, and fixing them properly.

If an issue impacts your team's ability to work, it sits within our scope. Requests are handled through our support portal, quick questions can be dealt with via live chat, and when needed you can book time with an engineer that suits you.

Urgent issues are prioritised immediately based on how they impact your ability to work, not just on a severity label. When something critical comes in, it's picked up by a team that already understands your environment, so time isn't lost repeating information or re-diagnosing basics.

Because we actively monitor your IT systems and track patterns across requests, many issues are identified and addressed before users are affected. Performance drops, recurring faults, and security risks are often picked up early and handled as part of our ongoing support, rather than becoming emergencies.

If an issue can't be resolved straight away, it doesn't stall or get passed around. It remains owned by our helpdesk team and is progressed until it's properly resolved. Where investigation, testing, or third-party involvement is required, we manage that work in the background, keep you updated, and only involve you again when input or approval is genuinely needed. The responsibility stays with us from start to finish.

Yes, for businesses where IT needs to be handled properly rather than informally.

Sereno is designed for teams that have moved beyond ad hoc IT support and need structure, ownership, and consistency. If IT issues are starting to interrupt work, fall on the same few people internally, or feel reactive instead of controlled, our helpdesk model is a strong fit.

We operate with a minimum level of commitment so we can provide consistent service and take real ownership. That means our support works best for businesses that value reliability and want IT handled as an ongoing responsibility, not a one-off fix.

Teams at this stage typically see the greatest benefit from having IT managed properly, rather than dealing with issues only when something breaks.

Security is integrated in every operation that we do when it comes to providing support. With proactive monitoring in place, updates, as well as cyber security solutions, every possible interaction in your IT is secured. This includes security for computers, email services, and even employee-oriented security packages to ensure that each component of your business is protected against threats.

It depends on the type of issue, but most problems are dealt with quickly and without unnecessary delay.

In practice, the majority of requests are resolved the same day, and many are handled within a few hours. Some tasks are intentionally scheduled for a later time when that suits your team better, such as planned changes or non-urgent work.

Urgent issues are prioritised immediately and remain owned by our team until they're resolved. By using structured requests, live chat for quick questions, and booked time with an engineer when input is needed, issues move forward without delays caused by missed calls or back-and-forth.

Our focus is always on resolving issues properly, not just restoring service, while keeping disruption to your working day to a minimum.

If an issue can't be resolved straight away, it doesn't stall or get passed around. It stays owned by our IT helpdesk support service and is progressed until it's properly resolved.

Some issues require investigation, testing, or involvement from third-party providers. When that happens, we manage the work in the background, keep the request moving, and update you on progress. We only involve you again when your input or approval is genuinely needed.

If direct contact is required, you can book time with an engineer that suits you, rather than dealing with missed calls or repeated follow-ups. Urgent issues continue to be prioritised until normal working is restored.

The key point is that responsibility doesn't shift back to you. The issue stays with us until it's resolved, and the underlying cause is addressed so it doesn't keep coming back.

Let's talk

Any questions?

Question not answered yet? Whether it's about our pricing, services or processes, we're here to help. Drop us a line below, or book a 1-1 discovery call at a time that suits you.

What we'll cover on the call

  • How IT is currently handled and where it creates friction
  • Recurring issues, ownership gaps, or security concerns
  • Whether your IT setup supports or slows your growth
  • What fully owned IT would look like for your business
  • Clear, actionable next steps you can use straight away

We'll get back to you within 60 minutes during business hours.

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