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  • Monday to Friday: 10am to 6pm
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Compare broadband deals in Cardiff

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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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Currently showing 10 of 90 deals which match your search

Offer
Speed
Contract
Set-up Cost
Monthly Cost
Virgin Media M125 Fibre Broadband Only
132Mb avg. speed
18 months
£0 set-up cost
£26.50 p/m per month
Hurry! Deal ends in 16h:43m:10s
Go
£85

Pricing calculation:

Monthly Cost: £26.50
Set-up Cost: £0
Rewards Saving: £85
Effective Monthly Cost: £21.78

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.

  • Extras

    Special offer: New customers only. Online only. 18 months reduced price. Prices may vary during contract. £85 Bill Credit. Free router. £30 charge for engineer appointments.

Broadband Genie Exclusive
BT Full Fibre 100
150Mb avg. speed
24 months
£0 set-up cost
£35.99 p/m per month 3 months free
Hurry! Deal ends in 16h:43m:10s
Go
£50
£50

Pricing calculation:

Monthly Cost: £35.99
Set-up Cost: £0
Rewards Saving: £207.97
Effective Monthly Cost: £27.32

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.

  • Broadband Genie Exclusive Offer (Ends Hurry! Deal ends in 16h:43m:10s):

    £50 reward (ONLINE ONLY)

  • Extras

    Special offer: Choice of £50 Amazon.co.uk, M&S or Tesco Gift Card. £50 BT Reward Card. 3 Months Free, £35.99 thereafter. 24 months reduced price. New customers only. Online only. Prices may vary during contract. Reduced cost depending on region.

Sky Broadband Superfast
61Mb avg. speed
18 months
£0 set-up cost
£26.00 p/m per month
Hurry! Deal ends in 16h:43m:10s
Go 0800 840 5386
Or call: 0800 840 5386
What's this number?

Find the best broadband package for you

Call us: 0800 840 5386

  • Monday to Friday: 10am to 6pm
£50 Gift Card

Pricing calculation:

Monthly Cost: £26
Set-up Cost: £0
Rewards Saving: £50
Effective Monthly Cost: £23.22

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.

  • Phone

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

  • Extras

    Special offer: New customers only. Online only. 18 months reduced price. Prices may vary during contract. £50 Gift Card included. Free router. Additional installation charge if a new line is required. £5 fee taken when joining and deducted from your first bill

BT Fibre 2
74Mb avg. speed
24 months
£0 set-up cost
£35.99 p/m per month 3 Months Free
Hurry! Deal ends in 16h:43m:10s
Go
£100
3

Pricing calculation:

Monthly Cost: £35.99
Set-up Cost: £0
Rewards Saving: £207.97
Effective Monthly Cost: £27.32

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.

  • Extras

    Special offer: £100 BT Reward Card. 3 Months Free, £35.99 thereafter. 24 months reduced price. New customers only. Online only. Prices may vary during contract.

Virgin Media M250 Fibre Broadband Only
264Mb avg. speed
18 months
£0 set-up cost
£30.50 p/m per month
Hurry! Deal ends in 16h:43m:10s
Go
£90

Pricing calculation:

Monthly Cost: £30.50
Set-up Cost: £0
Rewards Saving: £90
Effective Monthly Cost: £25.50

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.

  • Extras

    Special offer: New customers only. Online only. 18 months reduced price. Prices may vary during contract. £90 Bill Credit. Free router. £30 charge for engineer appointments.

Shell Energy Superfast Fibre Plus Broadband
67Mb avg. speed
12 months
£9.95 set-up cost
£23.99 p/m per month
Hurry! Deal ends in 3 days
Go 0800 093 2407
Or call: 0800 093 2407
What's this number?

Find the best broadband package for you

Call us: 0800 093 2407

  • Monday to Friday: 10am to 6pm
£90 Gift Card

Pricing calculation:

Monthly Cost: £23.99
Set-up Cost: £9.95
Rewards Saving: £90
Effective Monthly Cost: £17.32

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.

  • Phone

    +£7.17 for evening and weekend calls, +£11.94 for anytime calls, +£15.51 for anytime plus calls, +£8.36 for international calls.

  • Extras

    Special offer: New customers only. Online only. 12 months reduced price. £90 Choice of Amazon.co.uk, Just Eat or Love2Shop Gift Card. Delivery and call attachment costs not included. Prices may vary during contract. £9.95 router delivery cost. £67.50 installation charge if a new line is required.

Three 5G Hub Unlimited Home Broadband
150Mb avg. speed
24 months
£0 set-up cost
£22.00 p/m per month 3 months free
Go
£30
3

Pricing calculation:

Monthly Cost: £22
Set-up Cost: £0
Rewards Saving: £96
Effective Monthly Cost: £18

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.

  • Extras

    Special offer. New customers only. 3 Months Free, £20 thereafter. Free hub. 24 month contract. No phone service included. Prices may vary during contract. Next day delivery and no engineer required

Broadband Genie Exclusive
BT Full Fibre 900
900Mb avg. speed
24 months
£0 set-up cost
£49.99 p/m per month 3 months free
Hurry! Deal ends in 16h:43m:10s
Go
£50
£70

Pricing calculation:

Monthly Cost: £49.99
Set-up Cost: £0
Rewards Saving: £269.97
Effective Monthly Cost: £38.74

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.

  • Broadband Genie Exclusive Offer (Ends Hurry! Deal ends in 16h:43m:10s):

    £70 reward (ONLINE ONLY)

  • Extras

    Special offer: Choice of £70 Amazon.co.uk, M&S or Tesco Gift Card. £50 BT Reward Card. 3 Months Free, £49.99 thereafter. 24 months reduced price. New customers only. Online only. Prices may vary during contract. Reduced cost depending on region.

Broadband Genie Exclusive
BT Full Fibre 500
500Mb avg. speed
24 months
£0 set-up cost
£44.99 p/m per month 3 months free
Hurry! Deal ends in 16h:43m:10s
Go
£50
£60

Pricing calculation:

Monthly Cost: £44.99
Set-up Cost: £0
Rewards Saving: £244.97
Effective Monthly Cost: £34.78

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.

  • Broadband Genie Exclusive Offer (Ends Hurry! Deal ends in 16h:43m:10s):

    £60 reward (ONLINE ONLY)

  • Extras

    Special offer: Choice of £60 Amazon.co.uk, M&S or Tesco Gift Card. £50 BT Reward Card. 3 Months Free, £44.99 thereafter. 24 months reduced price. New customers only. Online only. Prices may vary during contract. Reduced cost depending on region.

TalkTalk Full Fibre 150 Broadband
152Mb avg. speed
18 months
£0 set-up cost
£28.00 p/m per month
Go 0800 0497 866
Or call: 0800 0497 866
What's this number?

What's this number?

This number will put you through directly to TalkTalk's customer service team.
For more information please see our privacy policy.

Free £50 Gift Card

Pricing calculation:

Monthly Cost: £28
Set-up Cost: £0
Rewards Saving: £50
Effective Monthly Cost: £25.22

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.

  • Extras

    Special offer: New customers only. Online only. 18 months reduced price. Prices may vary during contract. Choice of £50 Amazon, Mastercard, Sainsbury's or Tesco gift card. Free router. £60 installation charge if a new line is required.

Currently showing 10 of 90 deals which match your search

Order by phone:

0800 0901 3480800 0932 369

Open Mon - Fri What's this number?

Find the best broadband package for you

Call us: 0800 0932 369

  • Monday to Friday: 10am to 6pm

Check availability in your area

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Home Broadband deals in Cardiff

Cardiff residents have access to good broadband, with superfast (30Mb+) available to the majority of areas.

All the exchanges in Cardiff offer the full range of broadband connectivity, with the options of ADSL up to an average 11Mb. Full fibre is available in around 70% of the area.

  • What does ADSL mean?

    ADSL stands for ‘Asymmetric Digital Subscriber Line’. It’s broadband technology that allows the transfer data across regular telephone lines. You can make calls at the same time as being connected to the internet.

    An ADSL line will, at minimum, allow for a broadband connection of up to 8Mb. These days, that’s pretty slow and won’t allow you to do much other than emailing or basic web searches.

    ADSL2+ is now available at nearly all exchanges across the UK with slightly faster data transfer rates of around 10-11Mb.

Customers are lucky enough to enjoy very fast fibre packages, with the likes of Llandaff area, being able to access of speeds up to 944Mb through TalkTalk. Virgin Media is available with speeds up to 1.1Gb for most Cardiff areas except for Pentyrch and Peter-super-ely.

You're not guaranteed to be able to choose from all the deals in the comparison table. We strongly advise you 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. Your first step should be entering your postcode to filter deals by location, after that, you can filter and sort the options by criteria such as speed, ISPfree installation and TV, among many others.

The future of broadband in Cardiff

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

While the availability of gigabit remains limited (as it is across the whole of the UK, sadly), it seems likely that given Cardiff's importance, residents and businesses won't have to wait too long to gain access. And even if that's some way off, there are still future Virgin Media upgrades and the deployment of fast fibre-to-the-premises connections (which are already available at some exchanges). These should become widely available across the country over the next few years.

Comparing mobile broadband in Cardiff

Just as it offers a comprehensive selection of home broadband, Cardiff is also well served by mobile broadband from all networks. 3G, 4G and 5G 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 4G and 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.

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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