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All systems operationalNew · Microsoft 365 co-pilot rollout service

IT support that fixes the problem before you finish the call.

Onset Tech runs fully-managed IT, remote support and cloud services for UK small and mid-size businesses. One fixed monthly fee. Engineers on screen in under 12 minutes — backed by a signed SLA.

support.onsettech.co.uk / session / #4821
Active queue · 7
#4821 · Outlook crash on launch
P2
Harbour & Crane · S. Patel
#4820 · VPN handshake fails
P1
Meridian Legal · J. Khan
#4819 · Printer IP reassignment
P3
Rowe Studio · M. Davies
#4818 · SSO error for 3 users
P2
Kestrel Ltd · S. Patel
#4817 · SharePoint permissions
P3
Bramley & Co ·
REC · 00:04:12·Sharing: Alex Hoffman's desktop (Harbour & Crane)
Inbox — 12
Microsoft Outlook has stopped working
A problem caused the program to stop. Windows will close the program and notify you if a solution is available.
S. Patel
Session
SP
Sanjay Patel
Tier 2 · Level 12
SLA response
06:41
Committed: 15:00 · Under target
Chat
Alex
Hi — can't open Outlook since this morning.
Sanjay
Hi Alex, in. Pulling recent crash logs now.
Sanjay
Found a corrupted OST. Rebuilding — back in 3 min.
Reply to Alex…
11m 42s
Avg. response time
99.98%
SLA uptime, 2026
320+
UK businesses supported
4.94 / 5
CSAT, last 12 months
Trusted by finance, legal and creative teams across the UK
Harbour & Crane
Meridian Legal
Rowe Studio
Kestrel Ltd
Bramley & Co
Northfield Bank
What we do

Everything your IT department would do. For a fraction of a hire.

Pick the pieces you need, or let us run it end-to-end. Every service is delivered by named UK engineers — no offshore call centres, no scripts.

Most requested

Remote help desk

12-min response, named engineer, unlimited tickets. UK hours or 24/7.

Learn more

Managed devices

Endpoint monitoring, patching, and hardware lifecycle for Mac and Windows.

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Microsoft 365 & Google

Tenant setup, migration, Intune, Teams, Copilot rollouts — done right.

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Certified

Cyber security

Cyber Essentials Plus, MDR, phishing simulations, breach response retainers.

Learn more

Backup & disaster recovery

3-2-1 backup with ransomware-proof immutable snapshots. Tested quarterly.

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IT strategy & projects

Fractional CIO, hardware refreshes, office moves, cloud migrations.

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Remote support, reimagined

Your laptop, our engineers. On-screen in under 12 minutes.

One click from your system tray opens a secure session. The engineer who picks it up sees a full asset history, your named SLAs, and the last three tickets — so you don't repeat yourself.

End-to-end encrypted (AES-256) with session recording
Granular consent — you approve every remote action
Works on Mac, Windows, Linux, iOS and Android
Full audit trail exportable for ISO 27001 evidence
Secure session · Harbour & Crane
00:06:41
Engineer Sanjay Patel connected
Now
Diagnostics running: Outlook logs, disk health
+00:12
Identified corrupted OST file
+01:38
Rebuilt mailbox — Outlook launching now
+04:12
Resolved. Report generated. Signed off.
+06:41
How it works

From "who do we call?" to fully managed in ten days.

01

Discovery call

20 minutes on the phone. We map your stack, team, and top three frustrations.

02

On-site audit

A senior engineer spends a day with you. You get a 40-point written report.

03

Onboarding sprint

We deploy monitoring, take over admin credentials, and train your team — typically 10 days.

04

Live & continuously improving

Quarterly reviews, published SLA metrics, a named engineer who knows your business.

Customer story
"We fired two IT suppliers before Onset. The difference is night and day — we actually know our engineer's name, and nothing has fallen through a crack in two years."
Freya Lindström
COO, Harbour & Crane
42%
faster resolution
£18k
annual savings
0
breaches, 24 months
Tickets resolved today47 / 52
Onset Tech HQ · Covent Garden, London14 engineers on shift
Pricing

Transparent plans. No per-ticket fees.

Every plan includes unlimited remote support, 24/7 monitoring and a named account engineer.

Starter Audit
£850· one-time

A full-day on-site assessment with a 40-point written report and 30-day action plan.

  • Senior engineer on-site for a full day
  • Network, endpoints and cloud tenant audit
  • Written 40-point report within 5 days
  • 30-day action plan with cost estimates
Book the audit
Most popular
Essentials
£68· per user / month

Everything a 5–25 person business needs. One fixed fee, no per-ticket charges.

  • Unlimited remote help desk, 09:00–18:00
  • Named account engineer
  • Endpoint monitoring & patching
  • Microsoft 365 / Google Workspace admin
Start 30-day pilot
Complete
£112· per user / month

Fully managed IT for regulated businesses. Includes 24/7 response and Cyber Essentials Plus.

  • Everything in Essentials, plus:
  • 24/7 response with 15-min P1 SLA
  • Cyber Essentials Plus certification
  • Managed detection & response (MDR)
Talk to sales

Give your team the IT department they deserve.

Book a 20-minute discovery call. No slides, no obligation — just an honest read on where you stand.