Corporate-grade IT, for businesses that aren't corporations.
CTM Tech gives Hertfordshire SMBs the infrastructure standards normally reserved for enterprise IT departments — networking, cloud, Microsoft 365, security and practical AI, delivered by an engineer with 18 years inside corporate environments. We apply the same discipline to smart homes, including Home Assistant.
CISCO Certified / CompTIA Security+ / ESTABLISHED 2016
Four things that keep an SMB running
No bloated retainers, no jargon, no lock-in. Support scaled to what your business actually uses — from occasional project work to a fully managed estate.
Office Networking
The specialism. Networks designed to enterprise standards, not assembled from consumer kit.
- Network design & structured cabling
- Business Wi-Fi & coverage surveys
- Firewalls, VLANs & segmentation
- VPN & secure remote access
- Diagnosing faults others can't
Cloud Services
Migration and management that leaves you with lower overheads, not a bigger bill.
- Cloud migration & planning
- Azure & hosted infrastructure
- Backup & disaster recovery
- Business continuity planning
- Server consolidation
Microsoft 365
Set up properly, licensed sensibly, and configured so your team actually uses it.
- Tenant setup & migration
- Exchange & SharePoint
- Teams deployment
- Licence review & cost control
- Conditional access & MFA
Endpoint Protection
Every laptop is a way in. Security built the way corporate environments do it.
- Managed antivirus & EDR
- Patch management
- Device encryption & MDM
- Email & phishing defence
- Security posture reviews
Practical AI, wired into the systems you already run
AI is only as useful as the data it can reach and only as safe as the permissions around it. We prepare your Microsoft 365 estate for Copilot, build AI agents that answer from your own documents, connect assistants to your business systems with MCP, and automate the repetitive processes that eat your team's week.
Microsoft 365 Copilot
Readiness & rolloutPermissions cleaned up before Copilot surfaces what it shouldn't, then a measured rollout.
AI agents & MCP
CustomAssistants built on Copilot Studio, Claude, ChatGPT or Azure OpenAI, connected securely to your data.
Process automation
Power Automate · n8nInvoices, onboarding, approvals and reporting handled automatically, with a human where it matters.
A house is just a smaller estate
Smart homes fail for the same reason office networks fail: someone bolted the clever part onto infrastructure that couldn't carry it. We build the network first — then everything sitting on top of it stays up.
Home Networking
Full-property Wi-Fi, structured cabling and wired backhaul that holds under load.
Smart Lighting
Scene control and scheduling, integrated properly rather than an app per device.
Heating & Climate
Zoned control that lowers bills instead of adding another remote.
Security & CCTV
Cameras, doorbells and access control, segmented off the main network.
Multi-Room Audio
Whole-home sound through one interface, not five competing ones.
Aftercare
Updates, monitoring and support. Documented, so it stays serviceable.
One system for the whole house. Run locally, owned by you.
Home Assistant is the open-source platform we use to pull a home together. Lighting, heating, cameras, blinds, audio and energy all sit behind one app and one set of automations, whatever brand each device happens to be. It runs on a small dedicated box in your home rather than someone else's cloud, and it can sit alongside an existing Control4 system too.
Keeps working when the internet doesn't. Your automations and cameras stay inside the house, not on a manufacturer's server.
Thousands of integrations. Zigbee, Z-Wave, Thread and Matter, plus names like Philips Hue, Sonos, tado°, Hive, Ring and UniFi. Keep what you already own.
Works with Control4. Bring an existing Control4 system into Home Assistant and add the devices Control4 doesn't cover.
No compulsory subscription and no proprietary controller. It's documented and handed over, so you're never dependent on us.
New installation
From scratchDedicated hardware, Zigbee/Thread radios, a separate network for IoT devices, device onboarding, wall-tablet and phone dashboards, and automations built around how you actually live.
Rescue & tidy-up
Existing DIY setupsA hobby install that has turned fragile? Broken after an update, slow, running from a failing SD card, or understood by only one person in the house. We move it onto proper hardware, fix what's flaky and document it.
Ongoing care
ManagedUpdates tested before they're applied, off-site backups, secure remote access and monitoring, so the system stays reliable without you having to maintain it.
Three steps, no surprises
Whether it's a 20-person office or a four-bedroom house, the process is the same.
Conversation
Tell us what's working and what isn't. We reply within one business day, with no sales script.
Review
We look at what you're running now, on site or remotely, and show you where the gaps are.
Written proposal
Clear scope and cost before any work starts. If the honest answer is "leave it as it is", we'll tell you.
Eighteen years of enterprise habits
CTM Tech has served Hertfordshire since 2016. Behind it sits 18 years inside corporate IT environments — the kind where downtime is counted in pounds per minute and a badly segmented network becomes a board-level problem.
That background shapes everything here. Most small businesses inherit their IT by accident: a router from the broadband provider, a firewall nobody has logged into since install, laptops running whatever came in the box. It works right up until it very much doesn't. We bring corporate standards down to SMB scale and SMB budgets — and we document what we build, so you're never held hostage by the only person who understands it.
The same principles carry into the home. A smart home is an estate with fewer users and higher expectations, and it deserves a properly designed network underneath it just as much as an office does.
Sectors we work in
- RecruitmentFast onboarding, protected candidate data, CRM uptime
- Oil & gas servicesField teams, contractor access, operator security audits
- LogisticsWarehouse Wi-Fi, multi-depot networks, 24/7 operations
- Life sciencesData integrity, lab instrument PCs, controlled change
References are available on request.
Cisco Certified
Networking to vendor standard — routing, switching and segmentation done to spec, not to guesswork.
CompTIA Security+
Vendor-neutral security fundamentals: threats, endpoint hardening and risk management.
Corporate track record
Nearly two decades supporting infrastructure in environments where it isn't allowed to fail.
Hertfordshire based
On site quickly, and reachable by someone who knows your setup rather than a ticket queue.
Common questions
Do I have to sign a long-term support contract?
No. Work can be a one-off project, occasional ad-hoc support or a fully managed arrangement. Contracts are flexible, with no lock-in.
We already have someone who "does the IT". Can you still help?
Yes. Many engagements start with a review of what's already there, and we're happy to work alongside an existing provider or an in-house person. Everything we build is documented, so no single person becomes a bottleneck.
Which areas do you cover?
We're based in Hertfordshire and cover the county and its borders, including St Albans, Watford, Hemel Hempstead, Stevenage, Hertford, Hatfield, Welwyn Garden City, Harpenden, Berkhamsted, Bishop's Stortford, Potters Bar and Tring. Every enquiry gets a reply within one business day.
Can you help us use AI safely?
Yes. We start by making sure AI tools can only see what each person should see, then roll out Copilot, custom agents or automations with clear policies on what data goes where.
Why Home Assistant rather than a single-brand smart home system?
It works with almost any brand, runs locally so it keeps working without the internet, and doesn't tie you to one manufacturer's app or subscription. It can also run alongside an existing Control4 system.
I set up Home Assistant myself and it's become unreliable. Can you fix it?
Yes. We regularly move hobby installs onto proper hardware, sort out flaky Zigbee and Wi-Fi coverage, set up automatic backups and document the result. You keep your existing devices and automations wherever it makes sense.
Book a no-obligation review
Tell us what's working and what isn't. We'll look at what you're running, show you where the gaps are and tell you what we'd do about them.