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Broadband in Cardiff

A new way of exploring broadband speed, deals and providers in Cardiff! Enter your postcode to get started:

10 of 184 results
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Uswitch rated takes into account deals that are proving to be popular with our customers, that are competitive in the market and have a smooth buying process.
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Super fast fibre optic broadband means smoother video-streaming, better online gaming and quicker sharing of photos and videos.
Uswitch Exclusive
MTH Networks
MTH Networks 500Mbps - 12 Months
500
Mbps
average UK speed*
£28.20
a month
no setup cost
More info
Community Fibre
Community Fibre 1Gbps Fibre Broadband
920
Mbps
average UK speed*
£26.00
a month
no setup cost
  • £120 Amazon voucher
  • Alternative Broadband Provider of the Year
More info
Hyperoptic
Hyperoptic 150Mb Fibre Broadband
158
Mbps
average UK speed*
£19.99
a month
no setup cost
  • £50 voucher
More info
Community Fibre
Community Fibre 150Mbps Fibre Broadband
150
Mbps
average UK speed*
£18.99
a month
no setup cost
  • £70 Amazon voucher
  • Alternative Broadband Provider of the Year
More info
Uswitch Exclusive
Squirrel
Squirrel Red 900Mbps
900
Mbps
average UK speed*
£35.00
a month
no setup cost
More info
Community Fibre
Community Fibre 1Gbps Fibre Broadband - 12 Months
920
Mbps
average UK speed*
£32.00
a month
£14.95 setup cost
  • £110 Amazon voucher
  • Alternative Broadband Provider of the Year
More info
Uswitch Exclusive
Virgin Media
Virgin Media M250 Ultrafast Fibre broadband only
264
Mbps
average UK speed*
£30.50
a month
no setup cost
  • £90 bill credit
More info
KCOM
KCOM Full Fibre 100 Broadband
100
Mbps
average UK speed*
£19.99
a month
£24.99 setup cost
More info
Hyperoptic
Hyperoptic 150Mb Fibre Broadband - 12 Months
158
Mbps
average UK speed*
£23.00
a month
no setup cost
More info
Vodafone
Vodafone Pro II Full Fibre 2
67
Mbps
average UK speed*
£40.00
a month
no setup cost
  • £65 voucher
More info
About these results

*Average speeds are based on the download speed available to at least 50% of customers with this product during peak time (8 to 10pm). Your actual speeds depend on factors like your connection type, area, time of day and distance from the telephone exchange.

§Order before 8pm for next working day delivery. To find out more about delivery times, please check the provider site for more details.

Deals are subject to local availability and may not be available to existing customers. You can confirm availability and estimated speeds for your property on the provider’s website - this may be different to what we show.

Some providers may increase monthly costs each year during your contract, in line with the retail or consumer price index. Check their terms before signing up.

We’ve highlighted some recent Uswitch Award winners on our table.

How our site works

Uswitch services are provided at no cost to you, but we may receive a commission from the companies we refer you to. This helps to keep our site free for you to use. Sometimes we have commercial agreements with providers to highlight deals that we think are worth your consideration. These deals are labelled 'sponsored'.

How good is the internet in Cardiff?

Cardiff is very well covered by high-speed broadband services, and is home to the majority of internet services available across Wales.

The fastest widely available speeds are from Virgin Media, which offers packages of up to 1.1Gbps through its dedicated cable network — though this may not be available to everyone. But much of Cardiff can also access ultrafast full fibre deals, which are now available to over half of UK properties and offer speeds in excess of 1Gbps.

The speeds available may vary throughout Cardiff, so it pays to check what's available to your home. Our speed test tool can show you the speeds you can expect to receive at your home.

What is the best Wi-Fi in Cardiff?

Like most UK cities, the exact performance you can expect from broadband in Cardiff will depend on where you live, and the speed of services can vary even from street to street.

In general, however, almost all residences can expect speeds up to 67Mbps, half can access Virgin Media's ultrafast deals, and a third of premises can get full fibre.

How to find broadband deals in Cardiff

The best deal for you will depend on a number of factors. As well as the price per month, you should consider the speed you can expect to receive and whether this will be enough for your expected usage, as well as the performance of Wi-Fi routers and what extra features are included, such as parental controls and antivirus software.

With so many broadband providers in Cardiff, it can be tricky to know what the best deal for you is. However, you can use the Uswitch broadband postcode checker to easily find out exactly which providers and packages are available at your home.

Does Cardiff have full fibre broadband?

Yes, there are several locations within Cardiff where consumers can access full fibre broadband, or fibre-to-the-premises (FTTP) as it's also known, with 50% of Wales covered at the time of Ofcom's Connected Nations report in 2023.

This technology uses fibre optic cabling all the way to your home, as opposed to most standard fibre services, which still use copper for the last part of the journey. Full fibre results in speeds that can be up to 20 times faster than other alternatives.

Cardiff was one of the first nine cities in the UK to benefit from Openreach's Fibre First programme. Work is in progress to bring this technology to the city centre, while some nearby locations have already seen the work completed.

What are the full fibre broadband providers in Cardiff?

In addition to providers using Openreach's network, there are several other providers offering full fibre broadband in Cardiff. For example, city-focused firm Hyperoptic runs FTTP services to dozens of buildings in the city centre, most of which are large, modern apartment blocks.