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Call us: 0333 0417 273

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At Broadband Genie we make finding the best broadband in Cardiff a breeze. Simply type in your address to compare the best offers in your area. You can read our expert, independent guides to decide on the best supplier and package for you.

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Showing 10 of 125 deals which match your search

Vodafone Full Fibre 150
£25.00 Monthly cost
150Mb Average speed
£60 Gift Card
Price may rise during contract
24 month contract
£0 set-up cost
Ends tomorrow
Get deal
  • Extras
  • Phone

Special offer: New customers only. Online only. 24 months reduced price. £60 Choice of Amazon.co.uk, Tesco, M&S or Sainsburys Gift Card. Line rental included. Up to £50 Switcher Credit available to cover early termination charges. Annual Price Increase: monthly plan increases annually on 1 April by £3.00. Up to £3/month saving for existing mobile customers.

One Touch Switch enabled.

Line rental included. Evenings & Weekends +£4. Anytime UK Landline & Mobile: +£8. International 300: +£5.

Pricing calculation:

Monthly Cost: £25
Set-up Cost: £0
Rewards Saving: £60
Effective Monthly Cost: £22.50

Pricing Calculation

Effective monthly cost = This shows how much you are effectively paying each month over the length of the contract by taking into account rewards savings and one-off fees. The calculation for this is monthly cost x length of contract + setup cost - rewards savings.

Monthly cost = What you'll pay each month. This does not include additional fees, such as phone calls, which may be added to your bill.

Setup cost = The cost of installation, postage for the Wi-Fi router, and any other one-off charges.

Rewards saving = The value of vouchers and other perks included with a deal such as cashback, bill credit or a gift card which you can claim.

Virgin Media M125 Fibre Broadband Only
£22.99 Monthly cost
132Mb Average speed
£75
Price may rise during contract
18 month contract
£0 set-up cost
Get deal
Order by phone: 0333 0417 278
  • Extras

Special offer: New customers only. Online only. 18 months reduced price. £75 bill credit. Monthly price shown will increase each April from April 2025 by the Retail Price Index rate of inflation announced in February each year plus 3.9%. Free router. £30 charge for engineer appointments.

One Touch Switch enabled.

Pricing calculation:

Monthly Cost: £22.99
Set-up Cost: £0
Rewards Saving: £75
Effective Monthly Cost: £18.82

Pricing Calculation

Effective monthly cost = This shows how much you are effectively paying each month over the length of the contract by taking into account rewards savings and one-off fees. The calculation for this is monthly cost x length of contract + setup cost - rewards savings.

Monthly cost = What you'll pay each month. This does not include additional fees, such as phone calls, which may be added to your bill.

Setup cost = The cost of installation, postage for the Wi-Fi router, and any other one-off charges.

Rewards saving = The value of vouchers and other perks included with a deal such as cashback, bill credit or a gift card which you can claim.

Virgin Media M250 Fibre Broadband Only
£25.99 Monthly cost
264Mb Average speed
£80
Price may rise during contract
18 month contract
£0 set-up cost
Get deal
Order by phone: 0333 0417 278
  • Extras

Special offer: New customers only. Online only. £80 bill credit. 18 months reduced price. Monthly price shown will increase each April from April 2025 by the Retail Price Index rate of inflation announced in February each year plus 3.9%. Free router. £30 charge for engineer appointments.

One Touch Switch enabled.

Pricing calculation:

Monthly Cost: £25.99
Set-up Cost: £0
Rewards Saving: £80
Effective Monthly Cost: £21.55

Pricing Calculation

Effective monthly cost = This shows how much you are effectively paying each month over the length of the contract by taking into account rewards savings and one-off fees. The calculation for this is monthly cost x length of contract + setup cost - rewards savings.

Monthly cost = What you'll pay each month. This does not include additional fees, such as phone calls, which may be added to your bill.

Setup cost = The cost of installation, postage for the Wi-Fi router, and any other one-off charges.

Rewards saving = The value of vouchers and other perks included with a deal such as cashback, bill credit or a gift card which you can claim.

Vodafone Fibre 2
£24.50 Monthly cost
67Mb Average speed
£85 Gift Card
Price may rise during contract
24 month contract
£0 set-up cost
Ends tomorrow
Get deal
  • Extras
  • Phone

Special offer: New customers only. Online only. 24 months reduced price. £85 Choice of Amazon.co.uk, Tesco, M&S or Sainsburys Gift Card. Line rental included. Annual Price Increase: monthly plan increases annually on 1 April by £3.00. Up to £3/month saving for existing mobile customers.

One Touch Switch enabled.

Line rental included. Evenings & Weekends +£4. Anytime UK Landline & Mobile: +£8. International 300: +£5.

Pricing calculation:

Monthly Cost: £24.50
Set-up Cost: £0
Rewards Saving: £85
Effective Monthly Cost: £20.96

Pricing Calculation

Effective monthly cost = This shows how much you are effectively paying each month over the length of the contract by taking into account rewards savings and one-off fees. The calculation for this is monthly cost x length of contract + setup cost - rewards savings.

Monthly cost = What you'll pay each month. This does not include additional fees, such as phone calls, which may be added to your bill.

Setup cost = The cost of installation, postage for the Wi-Fi router, and any other one-off charges.

Rewards saving = The value of vouchers and other perks included with a deal such as cashback, bill credit or a gift card which you can claim.

Sky Broadband Full Fibre 500
£31.00 Monthly cost
500Mb Average speed
£100 Gift Card
Price may rise during contract
24 month contract
£0 set-up cost
Get deal
Order by phone: 0333 0417 276
  • Extras
  • Phone

Special offer: New customers only. Online only. £100 Choice of Gift Card. 24 months reduced price. No set annual price rises. You should be informed of any mid-contract price rises and then given 30 days to optionally leave your contract without penalty. Free router. Additional installation charge if a new line is required. £5 fee taken when joining and deducted from your first bill. One Touch Switch enabled.

+£5.75 for evening & weekend calls, +£13.50 for anytime calls, +£15.50 for international extra calls.

Pricing calculation:

Monthly Cost: £31
Set-up Cost: £0
Rewards Saving: £100
Effective Monthly Cost: £27.33

Pricing Calculation

Effective monthly cost = This shows how much you are effectively paying each month over the length of the contract by taking into account rewards savings and one-off fees. The calculation for this is monthly cost x length of contract + setup cost - rewards savings.

Monthly cost = What you'll pay each month. This does not include additional fees, such as phone calls, which may be added to your bill.

Setup cost = The cost of installation, postage for the Wi-Fi router, and any other one-off charges.

Rewards saving = The value of vouchers and other perks included with a deal such as cashback, bill credit or a gift card which you can claim.

Virgin Media Gig1 Fibre Broadband Only
£34.99 Monthly cost
1.1Gb Average speed
£105
Price may rise during contract
18 month contract
£0 set-up cost
Get deal
Order by phone: 0333 0417 278
  • Extras

Special offer: New customers only. Online only. 18 months reduced price. £105 bill credit. Monthly price shown will increase each April from April 2025 by the Retail Price Index rate of inflation announced in February each year plus 3.9%. Free router. £30 charge for engineer appointments.

One Touch Switch enabled.

Pricing calculation:

Monthly Cost: £34.99
Set-up Cost: £0
Rewards Saving: £105
Effective Monthly Cost: £29.16

Pricing Calculation

Effective monthly cost = This shows how much you are effectively paying each month over the length of the contract by taking into account rewards savings and one-off fees. The calculation for this is monthly cost x length of contract + setup cost - rewards savings.

Monthly cost = What you'll pay each month. This does not include additional fees, such as phone calls, which may be added to your bill.

Setup cost = The cost of installation, postage for the Wi-Fi router, and any other one-off charges.

Rewards saving = The value of vouchers and other perks included with a deal such as cashback, bill credit or a gift card which you can claim.

Fibrely Full Fibre 1000 Ultrafast
£40.99 Monthly cost
1.1Gb Average speed
£95 Gift Card
Fixed Price Promise
18 month contract
£0 set-up cost
Genie Exclusive
Get deal
  • Extras

Special offer: New customers only. Online only. £95 choice of gift card, Amazon.co.uk, Tesco or M&S. 24 months reduced price.

Pricing calculation:

Monthly Cost: £40.99
Set-up Cost: £0
Rewards Saving: £95
Effective Monthly Cost: £35.71

Pricing Calculation

Effective monthly cost = This shows how much you are effectively paying each month over the length of the contract by taking into account rewards savings and one-off fees. The calculation for this is monthly cost x length of contract + setup cost - rewards savings.

Monthly cost = What you'll pay each month. This does not include additional fees, such as phone calls, which may be added to your bill.

Setup cost = The cost of installation, postage for the Wi-Fi router, and any other one-off charges.

Rewards saving = The value of vouchers and other perks included with a deal such as cashback, bill credit or a gift card which you can claim.

Sky Broadband Full Fibre 75
£25.00 Monthly cost
75Mb Average speed
£95 Gift Card
Price may rise during contract
24 month contract
£0 set-up cost
Get deal
Order by phone: 0333 0417 276
  • Extras
  • Phone

Special offer: New customers only. Online only. 24 months reduced price. No set annual price rises. £95 Choice of gift card between M&S, John Lewis, Tesco, Mastercard or Sainsburys. You should be informed of any mid-contract price rises and then given 30 days to optionally leave your contract without penalty. Free router. Additional installation charge if a new line is required. £5 fee taken when joining and deducted from your first bill. One Touch Switch enabled.

+£5.75 for evening & weekend calls, +£13.50 for anytime calls, +£15.50 for international extra calls.

Pricing calculation:

Monthly Cost: £25
Set-up Cost: £0
Rewards Saving: £95
Effective Monthly Cost: £21.79

Pricing Calculation

Effective monthly cost = This shows how much you are effectively paying each month over the length of the contract by taking into account rewards savings and one-off fees. The calculation for this is monthly cost x length of contract + setup cost - rewards savings.

Monthly cost = What you'll pay each month. This does not include additional fees, such as phone calls, which may be added to your bill.

Setup cost = The cost of installation, postage for the Wi-Fi router, and any other one-off charges.

Rewards saving = The value of vouchers and other perks included with a deal such as cashback, bill credit or a gift card which you can claim.

Vodafone Full Fibre 500
£30.00 Monthly cost
500Mb Average speed
£85 Gift Card
Price may rise during contract
24 month contract
£0 set-up cost
Ends tomorrow
Get deal
  • Extras
  • Phone

Special offer: New customers only. Online only. 24 months reduced price. £85 Choice of Amazon.co.uk, Tesco, M&S or Sainsburys Gift Card. Up to £100 Switcher Credit available to cover early termination charges. Line rental included. Annual Price Increase: monthly plan increases annually on 1 April by £3.00. Reduced cost depending on location. Up to £3/month saving for existing mobile customers.

One Touch Switch enabled.

Line rental included. Evenings & Weekends +£4. Anytime UK Landline & Mobile: +£8. International 300: +£5.

Pricing calculation:

Monthly Cost: £30
Set-up Cost: £0
Rewards Saving: £85
Effective Monthly Cost: £26.46

Pricing Calculation

Effective monthly cost = This shows how much you are effectively paying each month over the length of the contract by taking into account rewards savings and one-off fees. The calculation for this is monthly cost x length of contract + setup cost - rewards savings.

Monthly cost = What you'll pay each month. This does not include additional fees, such as phone calls, which may be added to your bill.

Setup cost = The cost of installation, postage for the Wi-Fi router, and any other one-off charges.

Rewards saving = The value of vouchers and other perks included with a deal such as cashback, bill credit or a gift card which you can claim.

BT Full Fibre 100
£30.99 Monthly cost
150Mb Average speed
£50
Price may rise during contract
24 month contract
£11.99 set-up cost
Get deal
  • Extras

Special offer: £50 BT Reward Card. New customers only. Online only. Annual Price Increase: monthly plan increases annually on 1 April by £3.00.

BT Broadband customers get free and unlimited access to 5 million UK wide EE Wi-Fi Hotspots for fast internet access on the move.

One Touch Switch enabled.

Pricing calculation:

Monthly Cost: £30.99
Set-up Cost: £11.99
Rewards Saving: £50
Effective Monthly Cost: £29.41

Pricing Calculation

Effective monthly cost = This shows how much you are effectively paying each month over the length of the contract by taking into account rewards savings and one-off fees. The calculation for this is monthly cost x length of contract + setup cost - rewards savings.

Monthly cost = What you'll pay each month. This does not include additional fees, such as phone calls, which may be added to your bill.

Setup cost = The cost of installation, postage for the Wi-Fi router, and any other one-off charges.

Rewards saving = The value of vouchers and other perks included with a deal such as cashback, bill credit or a gift card which you can claim.

Order by phone:

0333 0417 2800333 0417 273

Open Mon - Sun What's this number?

Find the best broadband package for you

Call us: 0333 0417 273

  • Monday to Sunday: 8am to 8pm

Home Broadband deals in Cardiff

Cardiff's residents have access to good broadband, with superfast speeds available to the majority of areas. If you're looking for an ultrafast connection, full fibre is available for over 79% of premises.

Virgin Media is available with speeds up to 1.1Gb for around three quarters of Cardiff residents.

But, not everyone has access to the same broadband deals. Your location will have a big effect on what's available. Because of this, it's important to do an address check here before starting to narrow down your search.

Broadband Genie deals checker

This should still leave you with a great choice of packages and will help avoid the disappointment of choosing a particular special offer only to find it’s not available in your street.

Not sure where to begin on your hunt for the best broadband in Cardiff? If you’re completely new to broadband, it might be best to start with our beginners’ guide. This explains all the basics while linking to more resources to fill in any more details you may want to learn. Or you can simply call us on the number at the top of the page if that suits you best.

If you have a rough idea of the kind of deal you’re after, we have several dedicated comparison tables for the likes of broadband and TV bundles, or unlimited broadband.

The future of broadband in Cardiff

Cardiff was the first city in Wales to get gigabit broadband, with full fibre specialist, Hyperoptic installing ultrafast connectivity in Hayes Apartments above the St David's shopping centre way back in 2014. 

There are still future Virgin Media upgrades and the deployment of fast fibre-to-the-premises connections (which are already available in many exchanges). These should become ever more widely available across the country over the next few years.

Comparing mobile broadband in Cardiff

Cardiff is also well served by mobile broadband from all networks. 4G and 5G coverage is available from EE, O2, Three, and Vodafone.

In common with the rest of the UK, you'll find that the best reception is in central Cardiff and busier suburban locations. Once you venture out into the countryside, the connection will become less reliable, particularly when it comes to 5G.

Before buying any mobile phone or mobile broadband package, it's important to gauge coverage for yourself in the areas where you'll be using the service; click the logos below to access the network operator's own signal checking tools.

Three logo O2 logo Vodafone logo

EE logo

Where we get our information

We strive to keep our local broadband information as up-to-date as possible. This means using trustworthy sources with regular checks. The information on this page comes from the following:

Meet the author:

Contributor

Matt has been working with Broadband Genie since 2009. A lifelong tech enthusiast, he has 20 years of experience writing about technology for print and online.


Specialist subject: The technicalities of broadband

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