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What is Full Fibre Broadband and How Does it Work?

  • Writer: Jamie Reid - Credit, Loans & Everyday Money Writer
    Jamie Reid - Credit, Loans & Everyday Money Writer
  • Mar 6
  • 4 min read

Updated: May 29

As internet usage continues to grow, the demand for faster and more reliable connections has never been higher. That’s where full fibre broadband comes in. But what exactly is it, how does it work, and is it worth upgrading?


In this comprehensive guide, we explain everything you need to know about full fibre broadband in the UK — from how it differs from other types of broadband to how you can find the best deal.


Fibre optic broadband cables for high-speed UK internet

What Is Full Fibre Broadband?


Full fibre broadband, also known as FTTP (Fibre to the Premises), delivers internet through fibre-optic cables directly to your home or business. Unlike part-fibre services (like FTTC — Fibre to the Cabinet), full fibre doesn’t rely on copper wiring for the final leg of the connection.


This direct connection offers significantly faster speeds, lower latency, and a more stable connection.


Key Advantages of Full Fibre Broadband


  • Ultrafast download and upload speeds (often 100 Mbps to 1 Gbps or more)

  • Improved reliability, even during peak hours

  • Better support for multiple devices and smart home setups

  • Ideal for 4K streaming, online gaming, video calls, and remote work


How Does Full Fibre Broadband Work?


Full fibre broadband uses fibre-optic cables made from thin strands of glass or plastic. These cables transmit data using light signals, which means they can carry much more information than traditional copper lines and with far less interference.


How It Reaches Your Property:


  1. Main network: Fibre runs from your provider’s central exchange to a street-level distribution point.

  2. Distribution point: From here, fibre cables connect directly to your premises.

  3. Installation: An engineer will typically install a new wall-mounted box inside your property to connect your router to the fibre line.


Full Fibre vs Standard Fibre (FTTC): What's the Difference?


Most UK homes currently use FTTC broadband, which brings fibre to a local street cabinet and then uses copper wires for the last stretch to your home. This copper segment limits the overall speed and reliability.


Full fibre removes that bottleneck, delivering consistent high-speed performance directly to your door.


Comparison Summary (No Tables):


  • Speed: Full fibre can be 10x faster or more

  • Latency: Lower with full fibre — better for gaming and video calls

  • Reliability: Less affected by distance from the exchange

  • Futureproofing: Full fibre is more scalable for future internet demands


How Fast Is Full Fibre Broadband?


Speeds can range from 100 Mbps up to 1 Gbps or higher, depending on your provider and the plan you choose. Unlike part-fibre broadband, full fibre plans usually deliver the advertised speeds much more consistently.


Is It Too Fast for Most Households?


While 1 Gbps might seem excessive, households with multiple users streaming, gaming, or working remotely can benefit from the extra capacity and smoother experience.


Who Offers Full Fibre Broadband in the UK?


Many providers are rapidly expanding their full fibre coverage. Popular options include:


  • BT Full Fibre

  • Sky Ultrafast

  • Virgin Media (offering Gig1, which uses a different technology but offers similar performance)

  • Vodafone Full Fibre

  • Plusnet Full Fibre

  • Hyperoptic and Community Fibre (available in limited areas)


To check availability in your area, use the postcode tools on provider websites or visit:



How Much Does Full Fibre Cost?


Prices vary based on speed and provider, but typical costs range from £25 to £60 per month.


Things That May Affect Price:


  • Contract length (e.g. 12 vs 24 months)

  • Introductory discounts

  • Bundles with TV or mobile

  • Set-up or installation fees (often waived in promotions)


Do You Need Full Fibre Broadband?


Full fibre is not essential for everyone, but it’s increasingly becoming the new standard. Consider upgrading if:


  • You work from home or run a home business

  • You stream in high-definition or game online

  • You have many internet-connected devices

  • You experience slowdowns during peak times


When You Might Not Need It:


  • You only browse the web and check email

  • Your current speed meets your household's needs

  • Full fibre isn't available in your area yet


Unique Insight: Unexpected Benefit for Rural Users


Full fibre isn’t just for cities. In some rural areas, it’s actually easier to install new fibre lines than to upgrade old copper ones. This means some remote villages are leapfrogging cities when it comes to broadband speed.


If you live in a rural location, check with providers like Gigaclear or County Broadband, who often specialise in connecting underserved areas.


How to Switch to Full Fibre Broadband


Switching is usually straightforward:


  1. Compare available packages online

  2. Choose a provider and plan

  3. Book an installation appointment

  4. An engineer visits to install your fibre connection


Most switches involve little or no downtime, and your provider will guide you through the process.


Tips for Getting the Best Full Fibre Deal


  • Use comparison sites to check availability and price

  • Look out for cashback offers or reward cards

  • Consider bundling broadband with other services

  • Check if your provider offers social tariffs if you're on a low income


For budget planning, try the MoneyHelper Budget Planner:



Final Thoughts


Full fibre broadband offers a major step up in internet speed, reliability, and future-readiness. Whether you’re working from home, gaming, or just want a buffer-free streaming experience, it’s worth checking if full fibre is available in your area.


While it may not be necessary for very light internet users, the price gap between full fibre and slower connections is closing. If you're out of contract or experiencing slow speeds, now is a smart time to compare options and see if a switch could save you money — or at least dramatically improve your online experience.



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Please note:  All content on SmartWithMoney.co.uk is for informational purposes only and does not constitute financial advice. Always seek guidance from a qualified financial adviser before making any financial decisions.

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