Compare broadband deals in Cardiff
Broadband deals in Cardiff
As the capital of Wales and one of the UK’s fastest-growing cities, Cardiff is a great place to find a wide range of broadband deals. Whether you’re based in the city centre or surrounding areas like Penarth, Barry, or Caerphilly, there are plenty of options available. From budget-friendly packages for everyday browsing to high-speed connections ideal for streaming, online gaming, or remote work, there’s no shortage of choice
Across the Cardiff area, a variety of broadband technologies are available – including widespread superfast coverage and rapidly expanding full fibre networks. This gives households the flexibility to compare providers, speeds and prices to find a broadband package that suits their needs and budget.
What broadband can I get in Cardiff?
Cardiff residents across the four main postcode areas – CF10, CF11, CF23, CF14 – benefit from excellent broadband infrastructure. Overall, 99.6% of premises in Cardiff can access superfast broadband (30 Mbps+), with 95.3% capable of gigabit speeds.
A postcode snapshot:
- CF10 (city centre): Near-universal superfast access, with widespread FTTP availability and strong gigabit-capable services.
- CF11 (Grangetown, Riverside): High coverage of full fibre and consistent availability of ultrafast connections via both FTTP and cable.
- CF23 (Llanishen, Pentwyn): Most homes enjoy superfast speeds, with full fibre already live in a high proportion of properties and gigabit options through multiple providers.
- CF14 (Rhiwbina, Whitchurch): Similar to CF23, with strong FTTP coverage and plenty of ultrafast plans available.
Between 2019 and 2025, Cardiff has seen a dramatic rise in average download speeds. Driven by ongoing rollouts of full fibre and Virgin Media cable upgrades, the latest data by ThinkBroadband shows an increase of 52Mbps to 209Mbps.
Why postcode precision matters
Even within a single postcode, availability of full fibre or gigabit broadband can vary between streets or buildings due to differences in provider rollout, property type, and infrastructure. To find out exactly what's available at your address, use our postcode checker for the most accurate and up-to-date information.
Can you get full fibre in Cardiff?
If you live in Cardiff, the odds are high that you’ll be able to access full fibre. As of 2025, around 95% of premises in Cardiff have access to ultrafast broadband (speeds over 100 Mbps), these will either be through Virgin Media’s cabling or another full fibre network like CityFibre or Openreach. CityFibre and Openreach are the names of the wholesalers who provide the infrastructure for full fibre which other companies, like Sky and Onestream, use to deliver their broadband.
Which broadband providers are in Cardiff?
Cardiff offers a great choice of broadband providers, giving residents access to a variety of speeds, packages, and price points to suit different needs and budgets.
Virgin Media
Virgin Media offers some of the fastest broadband speeds in Cardiff, with packages reaching up to 1Gbps thanks to its own cable network. It’s a popular choice for larger households or anyone needing consistent high-speed connectivity for streaming, gaming, or working from home. Virgin Media often bundles broadband with TV and phone services, making it ideal for customers looking for an all-in-one deal.
Sky
This household name in broadband, TV, and entertainment, offers a range of fibre packages through the Openreach network. Customers in Cardiff can expect reliable performance, flexible contract lengths, with the option to bundle with Sky’s TV services. Speeds range from standard fibre up to full fibre in many parts of the city, making it a solid all-rounder for most homes.
BT
BT is one of the UK’s biggest broadband providers and has widespread availability across Cardiff via the Openreach network. Known for reliability and extensive customer support, BT offers a variety of broadband packages including full fibre options with speeds up to 900Mbps. BT is also a good choice for customers who want added extras like BT Sport or enhanced parental controls.
Vodafone
Vodafone has become an increasingly popular choice for broadband in Cardiff, offering competitive pricing and high-speed fibre packages through the Openreach network. Vodafone often includes discounts for existing mobile customers, making it a good choice if you're already using them for your phone plan.
Plusnet
Plusnet is a budget-friendly provider with a reputation for strong UK-based customer service. Operating on the Openreach network, Plusnet offers simple, straightforward broadband packages with no-frills pricing. While it doesn’t always offer the fastest speeds on the market, it's a dependable and cost-effective option for smaller households or light internet users in Cardiff.
NOW Broadband
NOW Broadband offers flexible broadband plans with no long-term contract, making it perfect for renters, students, or anyone wanting a shorter commitment. Powered by the Sky network, NOW provides standard and fibre packages at competitive rates.
Onestream
Slightly lesser-known than the others, but Onestream has been growing in popularity thanks to its low-cost full fibre deals. Using the Openreach network, Onestream offers fast broadband at affordable prices, making it a viable alternative to the big names. While extras may be more limited, it’s worth considering if you're looking for value-focused full fibre options in Cardiff.
Even its slowest package has a very healthy average speed of 50Mbps. And despite being fast paced it also offers really good prices. Another big draw is that it also comes with a flexible rolling contract for those not looking to lock-in. You’ve just got to hope that your postcode falls under a Hyperoptic network, it’s currently available to about 20% of Cardiff.
Ready to switch broadband in Cardiff?
The new One Touch Switch process makes changing broadband providers easier than ever. You only need to sign up with your new provider – there’s no need to contact your current one, as the switch is handled for you.
It’s a quick and hassle-free way to get a better deal. Just enter your postcode to compare the latest broadband offers available in Cardiff.
Finding the right broadband deal in your area doesn't have to be complicated. We're here to help.