From the first survey to the last splice. And the monitoring that follows.
It’s the groundwork that makes the network.
Six services. Buy the ones you need.
No tiers, no packages with invented names. Take one service or take all six. Most clients start with Consultancy or Design.
Consultancy
Independent advice on strategy, routes and cost-benefit.
Explore
Design
Architecture, route engineering, tender-ready specs.
Explore
Construction
Civils, ducts, chambers, wayleaves — handled ahead of time.
Explore
Installation
Fibre blowing, splicing, testing, commissioning.
Explore
Solutions
The turnkey bundle — one number for the whole job.
Explore
Support
RADAR-monitored care, emergency response, route mapping.
Explore 01 / Service Consultancy
Independent advice on network strategy, route planning, and cost-benefit. The job most clients start with.
- A written answer to “evaluate 15 sites”, “connect two buildings” or “our contract ends in eight months”
- Diverse routes and multi-carrier options, compared
- Cost cases laid out so you can put them in front of a board
- The right call now sets up retention, EBITDA growth and a higher valuation
We found the carriers within reach and quoted the diverse-connection cost at under £100,000. The site sale went forward.
Read the Midlands DC case study 02 / Service Design
Network architecture, route engineering, and full build specifications — turning a Consultancy answer into something a contractor can build.
- Route engineering, diversity and resilience designed in
- 10Gbps for ISP and multi-site work; 100Gbps and 400Gbps for data centres
- Tender-ready specifications a main contractor can build from
- Used to set a board budget or run a procurement
We recommended an Open Access Network Partnership, and Openreach was contracted to deliver diversely-routed multi-fibre cables between the site and two local exchanges — before the data centre opened.
Read the GCRE case study 03 / Service Construction
Civils, ducts, chambers, wayleaves — the physical foundation of the network, handled ahead of time.
- Ducts in the ground, chambers at the junctions
- Wayleaves agreed in advance with landowners and councils
- Co-ordination with builders, carriers and planners — the bit that stalls most projects
- We do it ourselves, and we do it before the build needs it
15 sites evaluated, four built out. Extensive co-ordination with Openreach, a national carrier for the 4×100Gbps links, and the on-site builders. On time. On budget.
Read the AI data centre case study 04 / Service Installation
Fibre blowing, splicing, testing, commissioning — the kit-on-the-ground part of the job.
- Fibre blown through the ducts and spliced at the joints
- OTDR testing on every finished span
- Active equipment commissioned so the link goes live
- Each fibre fingerprinted — the baseline RADAR™ monitors against for life
Eleven residential buildings plus the Management Suite. Multi-core dark fibre installed across the estate, replacing the legacy copper. Ownership kept with Ask4.
Read the Ask4 West London case study 05 / Service Solutions
Integrated dark fibre, high-bandwidth networks and data centre infrastructure — the whole job from one team.
- Consultancy, Design, Construction and Installation in one engagement
- Built for new-build data centres and multi-site high-bandwidth networks
- One contract, one project manager, one number
- The same six services inside — the wrapper saves you the procurement work
A colocation provider — leaders in immersion cooling — needing multi-100Gb capacity. We surveyed every carrier and dark fibre option in the area, gave Carbon-Z a costed map of the choices, then delivered against it.
Read the Carbon-Z case study 06 / Service Support
RADAR-monitored care, emergency response, route mapping — where the long relationships live.
- Multi-year Total Care contracts with detailed route mapping
- On-call engineers to locate a fault; civils teams to dig where needed
- RADAR™ out-of-band monitoring behind every contract — free for larger networks
- For most clients, Support is the reason they stay
Ask4 chose Sicom as preferred provider of dark fibre across eleven cities, with RADAR monitoring every fibre across the build, every few seconds, every day.
Read the Ask4 UK-wide case studyMost projects use three or four of the six.
You can stop at any point and pick up later — many clients buy Consultancy first, sit on the answer for six months, then come back when the project’s funded.
Pre-build
Consultancy → Design
We help you work out what to build, then specify it.
Build
Construction → Installation
Civils in the ground, fibre in the duct, kit live.
Build (packaged)
Solutions
Pre-build and build phases bundled when you want one supplier.
Post-build
Support
RADAR watches the network. We’re the team you ring if something changes.
Four things others can’t say.
Benefits of dark fibre — and how to find it
The case for owning your fibre instead of renting a leased line — what dark fibre actually is, where the savings come from, and how to source it for your route.
- Why ownership beats renting once the contract runs past five years
- Bandwidth on your terms — change the kit, not the contract
- How to find dark fibre routes and who to ask
Tell us what you’re trying to connect.
We’ll come back with a written answer. Four postcodes, four bandwidths, your email.
Start a Free Desktop Survey Or download a free guide