The Complete Guide to Fibre Optic Installation Services in the UK

Introduction

The UK is undergoing a connectivity revolution. Millions of homes, businesses, councils and public institutions are rolling over – from legacy copper-based networks to fully fibre networks that are set to support the needs of the modern digital economy for decades to come. Installation of fibre optics is the core of this change. It’s not just a plain old and considerably less glamorous broadband upgrade. It’s a civil engineering and communications field that requires seasoned engineers, exact estimating, careful adherence, and the type of contractor relationships created on trust and accountability, not just on quotations. Written by CA Telecom UK, a specialist fibre optic contractor experienced in delivering projects across commercial, public sector and infrastructure projects throughout the UK for over 20 years. From a business looking to review connectivity options to a developer working on a new site to a local authority expanding a public fibre network, this is the resource that will provide you with the big picture and the nitty-gritty. We discuss all the key factors—from what a fibre optic installation entails to all of the different fibre cabling services that can be provided in the UK, the step-by-step process, the advantages it brings and how a good fibre optic contractor differs from a not-so-good one.

1. What Is Fibre Optic Installation?

The installation of fibre optics is a procedure where fibre optic cables (a bundle of ultra-pure glass or special plastic fibres carrying data in the form of a pulse of light) are physically installed to create a high-speed and high-capacity communication network. Copper cables transmit electric signals that lose strength as they grow longer and are easily knocked out by electric fields, while fibre optic infrastructure can transmit data at speeds and reliability that are incomparable to copper. Installing fibre optic cables is a complex process that requires a range of technical skills and expertise. Design and planning of networks and routes. Defining the best and most compliant cable run in a cable run between or within sites. Civil engineering Trenching, Ducting, Construction of Cable Chambers and Reinstatement of Roads or Pavements. Cable deployment Injecting, pulling or jetting fibre-optic cable through pre-installed duct networks. Fusion splicing Connecting lengths of fibre together to form a single, non-loss optical path through the use of specialist equipment. Termination and patching Installing fibre to the active equipment like OLTs (Optical Line Terminals) or patch panels. Testing and certification To ensure that all links are verified to meet BS EN standards before the network is handed over, using OTDR (Optical Time Domain Reflectometer) equipment. Single lines of fibre leased to a single business premise to a city-wide passive optical network (PON) that provides full fibre UK connectivity to thousands of endpoints are all within the scope of a typical fibre installation project. The only thing that’s constant is the need for precision at each and every step: A poorly-spliced joint or a duct run that has not been adequately protected can adversely affect the performance of an entire network.  

2. The Comprehensive UK Fibre Cabling Solutions.

When companies are searching for fibre cable services in the UK, they’re typically searching for a solution to a single problem. The truth is, the full fibre network delivery is a wide spectrum of services. Having this clarity can put buyers at ease, enable them to ask the right questions and select contractors that possess the necessary skills.  

New Build Fibre Network Infrastructure

One of the largest groups of fibre optic installation UK jobs is the construction of new fibre networks from the ground up. This includes both greenfield commercial and industrial sites where all connectivity infrastructure needs to be installed and residential developments where the installation of fibre networks needs to be finished during the construction of the development. New construction fibre projects generally require the contractor to undertake the entire project from survey through the design, wayleave work, civil works, cable laying, splicing, testing and certification. This is where the end-to-end delivery, from in-house civils, is a real difference-maker when it comes to time and cost.

Upgrade and Replacement of Legacy Infrastructure

Much of the fibre optic installation UK activity is related to the replacement and augmentation of existing infrastructure. Legacy copper networks, first-generation multimode fibre or FTTC connections are currently used by many businesses and public sector organisations but are no longer able to provide performance. Upgrades can only be designed after performing a careful survey to find out what is already there and what can be reused – such as ductwork – and what needs to be replaced. Planning around live networks, with minimal impact on the operational service, is one of the skills that is key to the contracts in this space.

Commercial fibre installation.

Commercial fibre cables are designed to provide dedicated services to individual businesses, office buildings, retail parks, logistics centres and industrial sites. The installations are normally of a single-mode FTTP connection terminated directly to the building, and the fibre is either installed from an existing duct or a new duct is installed to the building from an exchange or point of presence. There is a great diversity of commercial projects for the installation of fibre optics. A simple connection from the office into the city centre could be a fairly short duct length with minimal civil works. To install new ducting, make wayleave agreements on multiple land parcels, and create a bespoke network design to connect to the nearest fibre point of presence, a rural industrial site may need hundreds of metres of new ducting, wayleave agreements across multiple land parcels, and a bespoke network design to reach the nearest fibre point of presence.  

Fibre Networks for Public Sector and Council Buildings

UK local authorities are increasingly turning towards the development of their own fibre optic networks that provide services to public facilities, schools, libraries, sports and leisure centres, and new elements of smart city infrastructure. Such fibre installations need to be approached differently from regular installations due to particular procurement procedures and compliance. The installation of a fibre network within a council area usually implies a high standard of efficiency, adherence to public procurement principles, and high availability and redundancy requirements. The process also implies interaction with various departments, utilities companies, and highway authorities; thus, an experienced contractor is needed.

Dark Fibre and Infrastructure Installations

‘Dark fibre’ refers to unused fibre optic cables that are leased to telecom providers or companies by owners of the cables, who provide the active equipment necessary for operating those cables. The installation of dark fibre infrastructure does not differ much from the installation of regular fibre optics since it also includes such steps as cable laying and civil works. However, when designing such projects, one needs to consider particular specifics of dark fibre. The telecommunications companies, network providers, and organisations that invest in private wide area network construction often need experienced contractors to build their dark-fibre infrastructure.  

3. How Fibre Optic Network Installations Really Work

Insight into the real-world process behind the creation of fibre optic networks – from enquiry through to completion – enables clients to work much more effectively with their chosen contractors, setting realistic expectations and avoiding pitfalls that lead to programme delays and cost overruns. Here’s CA Telecom UK’s approach. Step 1: Site Survey & Network Design No legitimate fibre optic network installation begins without a site survey, a desktop survey checking existing duct records and Ordnance Survey and utility information, combined with a walkover survey assessing actual ground conditions, access point locations, obstacle locations, and road crossings. Survey results are used to design the network, including the actual route of the fibre, placement of cable chambers, duct installation requirements, number of fibres needed, and passive optical network design. Step 2: Securing Consents, Permits & Wayleave Agreements Consents must be acquired prior to the beginning of construction. Any installation involving work on the highway requires a Section 50 licence according to the NRSWA. If the fibre will cross private property, then Wayleave agreements must be obtained for every parcel along the route. This step is often underestimated by the client. Wayleave negotiation can take weeks or even months if negotiating agreements over multiple parcels of private land is necessary. Experienced fibre optic contractors UK-wide begin this process concurrently with design and survey work – not sequentially – to prevent programme delay. Step 3: Civil Engineering & Duct Installation Civil engineering work is usually the most labour- and equipment-intensive part of a typical fibre optic installation project. It includes breaking ground – either through trenching, horizontal directional drilling, or micro-trenching in appropriate environments – and laying the ducts in situ, creating cable chambers as necessary and reinstating the ground. On public highway projects, reinstatement must meet the HAUC (UK) Specification for Reinstatement of Openings in Highways. On projects situated in the City of London – which CA Telecom UK possesses a Gold CCSS Award to operate in – the specification for safety, signage and surface reinstatement is especially rigorous. Groundworks managed by a civil engineering company as opposed to subcontracting them yields improved results. Phase 4: Fibre Optic Cable Installation Once the duct is ready, fibre optic cables will then be installed inside the duct. There are two primary techniques used in cable installation – cable blowing (using air pressure to push cables down the duct, most effective for long runs), cable pulling (used for shorter cables or when ducts are more complicated) and jetting (using a combination of air pressure and water for more complicated installations). Fibre cable installation requires proper management of cable route planning. Correct positioning of fibre drums should be undertaken to avoid kinking or tension in cables. In addition, actual routes taken by cables during installation have to be recorded as well since any deviation from the original plan should also be included in the as-built drawings. Phase 5: Fusion Splicing and Termination Splices form one of the weakest links in fibre optics. Proper fusion splicing entails the precise alignment and joining of two ends by heating them with an electric arc. Ideally, a fusion-spliced connection should result in joint losses less than 0.1dB. Poor fusion splicing will eventually lead to signal loss, which will adversely affect overall network performance and can even cause a network not to pass the OTDR certification. Fibre termination will entail connecting the fibres with other active equipment. Termination can be factory-installed or field-terminated using connectors. Both termination and fusion splicing processes are dependent on how skilled the engineers are, the calibration of tools used, and clean working conditions. Phase 6: OTDR Testing and Certification OTDR testing of all installed fibre links is done prior to handover. OTDR tests provide a graphic representation of each fibre link indicating all splices, connectors, and bends along with their locations and associated losses in dB to ensure that there is sufficient margin between the end-to-end losses and the total allowable loss budget as per the design. CA Telecom UK conducts OTDR testing as well as providing full OTDR testing reports during handover of the project, along with as-built drawings, asset schedules, and maintenance reports.  

4. Types of Fibre Optic Installation — FTTP, FTTC, Dark Fibre & More

Not every type of fibre optic installation in a UK project provides the same kind of connectivity. Any organisation has to be aware of the difference between the connections when making infrastructure investment decisions. FTTP – Fibre to the Premises (Full Fibre UK) FTTP is the ultimate in fibre network installation. There is no copper in the optical fibre path from the network exchange or data centre to the end-user’s premises. Project Gigabit is meant to deliver ‘full fibre UK’.Under Project Gigabit, the UK government promises ‘full fibre UK’. FTTP offers speeds of up to 1 Gbps and beyond, with latency ranging from single-digit milliseconds up to multiple digits of ms, and availability is generally 99.99% or higher on a well-engineered network. FTTP truly future-proofs the investment of the network for data-intensive businesses, cloud-dependent operations, multi-site enterprises and public sector organisations that must have resilient connectivity. FTTC — Fibre to the Cabinet (Partial Fibre) FTTC provides fibre to a cabinet on the street, to which copper telephone wire links the home. Although there is still a wide rollout of FTTC and it is less expensive to install than FTTP, the speeds offered drop significantly if the line is located further from the cabinet, so homes farther than 300 metres may be offered speeds much lower than the advertised figure. FTTC is becoming a short-term fix, as it’s being superseded by other services as businesses’ digital needs continue to rise. The overall cost to manage performance restrictions, contention and eventual upgrade can be higher than the initial cost premium for FTTP. Leased Lines and Dark Fibre. A leased line is a fibre line set up between two points, typically between a business premise and a data centre and/or internet exchange, and is dedicated and contended. The bandwidth of a leased line is not shared with other lines and guarantees performance at all times, unlike broadband. Leased lines are typically used by businesses that need reliable, top-tier internet connections for sensitive business applications. Dark fibre takes it one step further, as it provides the customer with ownership of the physical fibre infrastructure and freedom to install their own active equipment. This type of model is preferred by telecom operators, large enterprises which are constructing private WANs, and organisations that need to have maximum control over their network architecture. Point-to-Point and Campus Fibre Networks. Many organisations need fibre connectivity between buildings on a campus, between floors in a large building, or between nodes in a private wide area network, as well as to the outside world. The principles of the civil works and cable installation found in wide network installations are the same in point-to-point and structured campus fibre installations, except that they are designed for resilience and traffic management within the campus.

5. Key Benefits of Fibre Optic Cable Installation

The business case for laying fibre-optic cable is sound – but it is important to spell it out precisely, as there is much more to it than headline-speed comparisons. Symmetrical High-Speed Performance Unlike traditional cabling, fibre optic networks offer the same upload and download speeds. In the business world, symmetrical performance is not a luxury; it’s a requirement when it comes to video conferencing, cloud backups, hosted applications and real-time data services. Asymmetric performance results from copper and FTTC connections, leading to hidden productivity bottlenecks. High reliability and uptime. Unbeatable reliability and uptime. Fibre is not affected by electromagnetic interference from radio frequency, industrial interference or power cables. It will not be affected by temperature changes, water intrusion (if installed properly) or physical deterioration like copper over time. Fibre networks can reliably reach 99.99% availability, which is essential for mission-critical applications. Virtually Unlimited Scalability The fibre optic cable laid down now will enable network speeds that are much higher than those used at the moment. Capacity is not limited by the optical fibre but rather by the active electronics at either end of the fibre. This gives organisations the ability to significantly upgrade their bandwidth, without having to replace any physical cable infrastructure, by upgrading transceivers and switching devices. The funds spent on fibre optics now will pay off for network capacity that will last 25 to 40 years. Reduce TCO Installing the fibre optic cable in the UK is often more expensive than the old-fashioned copper cables. The total cost of ownership over a 10-year timeframe is always lower, however. Fewer faults, lower maintenance costs, no need for repeated cable changes and performance-related productivity loss are more than made up for by the initial investment premium. Data Integrity/Security Unlike copper, fibre optic cables can’t be tapped by someone without touching the cable, as the cables don’t emit electromagnetic radiation that could be picked up. This physical security property is an important benefit for organisations that process sensitive data, such as healthcare institutions, financial services, and public sector entities. Contribution to the sustainability goals. There’s a significant transmission advantage in terms of how far fibre optic networks can go for a given quantity of energy used when compared to copper alternatives. For those organisations who are committed to a Net Zero target and have ESG reporting requirements, converting from copper to fibre is an established path to reducing the carbon footprint of digital infrastructure.