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Call
An hour on Teams or by phone about your office, your people and the questions your clients ask. We tell you plainly if we are not the right fit.
Book a call- Honest view of fit
- Notes from the call
IT support City of London
IT support in the City of London, with a planned on-site day
For IT support in the City of London, we combine a remote helpdesk with a planned on-site day at your office, each week or each month. The small jobs that pile up get done in one visit, and urgent hardware problems still get a visit of their own.
Planned on-site days
- A set day each week or each month, written into your agreement
- A remote helpdesk for everyone in between
- An extra visit when a fault needs hands on
- Building and supplier notes kept up to date
Trusted by teams across UK government, healthcare, education, charities, financial services and global brands
Support built around a regular day in the office
Many City offices are busy, and many of the people in them bill their time. A predictable visit often suits them better than ad hoc call-outs.
A day your staff can plan around
People know when the engineer will be in, so they save up the laptop that feels slow, the second screen that will not wake and the new joiner’s set-up for that day.
Help between visits
Our helpdesk answers by phone, email and the support portal. An engineer who knows your set-up connects remotely and fixes most things the same way they would on site.
Answers for client questionnaires
Corporate clients and insurers ask about multi-factor authentication, encryption, backups and patching. We keep the reports that answer them.
Apple and Microsoft together
Some City teams mix Macs and Windows PCs. We run Macs in Jamf and PCs in Intune, connected to the same Microsoft Entra ID sign-in. See Windows IT support.
Credentials you can check
Our advice comes from engineers who run these platforms every day. We can share evidence of each on request.
Jamf licences, and the team to run them
See our Jamf listing (opens the Jamf partner directory in a new tab)
Jamf run for you as a managed service
See our Jamf listing (opens the Jamf partner directory in a new tab)
Government Commercial Agency (GCA) supplier
See our G-Cloud listings (opens the Digital Marketplace in a new tab)Microsoft Cloud Solution Provider (CSP)
Microsoft 365 licences in the UK, and the team to manage them
Most City IT work is small, and it adds up
In a typical City office, few problems are emergencies. They are a meeting room camera that drops out, a printer that only one floor can reach, a docking station that needs swapping, a partner who wants their iPad set up properly. On their own, none justifies a call-out. Together they cost hours.
A planned on-site day clears that list. The engineer arrives with the requests your staff have logged, works through them in order, and spends the rest of the day on the jobs that are easier in person: checking the comms room, testing Wi-Fi in rooms people complain about, and walking new starters through their devices.
Our engineers travel from Canary Wharf, and the Elizabeth line connects our office to the City. We visit central London offices as part of normal support, so a fault between planned days does not have to wait for the next one.
Good uses of the day
- New starters and leavers, devices handed over in person
- Meeting rooms and Teams calls tested
- Hardware swaps, docks and screens
- Comms room and network cabinet checks
- Short training for staff who ask
How a planned on-site day works
The day is planned like any other piece of work, so it is spent on the things that matter to you.
- Step 1
Agree the rhythm
We agree which day, and whether it is weekly or monthly, when we write your service agreement. It can change as your team grows.
- Step 2
Log the requests
In the days before, staff log anything that can wait for the visit. Urgent issues still go straight to the helpdesk.
- Step 3
Visit and work the list
The engineer arrives with your documentation and the open tickets, works through them and checks the comms room on the way out.
- Step 4
Report back
You get a short note of what was done, what is still open and anything we think should change before the next visit.
When clients ask about security
Many City businesses spend as much time answering security questions as they do on IT itself.
Questionnaires and renewals
A corporate client sends a supplier questionnaire before instructing you. A professional indemnity or cyber insurer asks the same questions at renewal. A public sector contract may need Cyber Essentials before you can bid.
Cyber Essentials in public contracts
The NCSC notes that a growing number of organisations require suppliers to be certified to bid for work. For central government departments, their agencies and NHS bodies, procurement policy note PPN 014, which replaced PPN 09/23 for procurements started on or after 24 February 2025, asks suppliers on certain contracts to hold Cyber Essentials or Cyber Essentials Plus, or show equivalent controls, and renew it each year of the contract. We prepare your devices, accounts and network, and support you through assessment with a certification body licensed by IASME. See Cyber Essentials.
Legal practices
For legal practices, the Solicitors Regulation Authority sets outcomes rather than technology: keep client affairs confidential, and run effective systems and controls. In practice that means knowing who can open which matter, how a lost laptop is protected and what happens if a supplier fails. Our IT for legal practices page covers it in more depth.
Evidence that already exists
Whatever the question, the answer is easier when the evidence already exists: encryption and update reports for every device, multi-factor authentication on every account, and backups that have been restored, not just run.
Cranbrook Legal: one accountable team in place of stretched internal IT
“Postremo IT has completely transformed our internal operations.”Amer ZamanCEO, Cranbrook Legal
Managed ITReplacing an internal team that lacked technical depth
Jamf Pro, Connect and ProtectEvery Apple device managed and protected
OutcomeLess downtime, stronger security, a partner for growth
Moving your City office to us
You choose how far to go at each stage. Nothing is signed until you have seen the review and the quote.
See what you have
Review
We review Microsoft 365, devices, backups and security, then propose a support plan with the on-site rhythm that suits your size.
- Risks, in priority order
- Proposed on-site rhythm
- A fixed monthly quote
Take over without a gap
Switch
Onboarding takes about four weeks on average. We collect admin access from your current provider, document everything and enrol devices into Jamf and Intune.
- Your own documentation
- Admin access held in your name
Planned days and a helpdesk
Support
The helpdesk goes live for your staff, the first planned day goes in the diary, and we meet you regularly to review how it is going.
- Planned on-site days
- A helpdesk for every user
- Service reviews
Frequently asked questions
Can’t see your question? Call us on +44 20 7550 9103 or book a call.
What is a planned on-site day?
A set day, each week or each month, when one of our engineers works at your City office. Staff save up non-urgent requests for it, and the engineer also checks meeting rooms, the comms room and new equipment. It is written into your service agreement.
What if something breaks between planned days?
Call or email the helpdesk as usual. Most problems are fixed remotely. If a fault needs hands on, we book a separate visit, because we visit central London offices as part of normal support.
How much does IT support in the City of London cost?
Managed IT starts from £25 per device per month, excluding VAT and licences, on an agreement that normally runs for two years, with a one-year minimum. Any planned on-site days are set out in the quote and written into your agreement. See IT support pricing.
Can you help us answer client security questionnaires?
Yes. We keep the reports on encryption, updates, sign-in and backups that those questionnaires ask about, and help you answer them. We can also prepare you for Cyber Essentials.
Do you support legal practices?
Yes. Cranbrook Legal, a central London legal practice, is one of our clients. We manage its Apple devices with Jamf Pro, Jamf Connect and Jamf Protect. See IT for legal practices.
Can you manage Macs as well as Windows PCs?
Yes. We are a Jamf Professional Partner and MSP for Apple devices, and manage Windows PCs with Microsoft Intune. One helpdesk supports both. See Mac IT support.
Where are you based?
Our office is on Level 24 of One Canada Square in Canary Wharf, where the whole team works. Our engineers travel to the City by the Elizabeth line.
Plan your first on-site day
Tell us how many people are in your City office and what keeps going wrong. We will suggest an on-site rhythm and a support plan to match.
London head office
Postremo IT Limited
Level 24, One Canada Square
Canary Wharf
London E14 5AB
+44 20 7550 9103
info@postremoit.com
Also in Dubai
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