20 providers offer 218 broadband deals in Mumbles, from £15.00 a month and up to 7,000 Mbps. Typical measured speed is 93 Mbps down and 20 Mbps up, 8% below the UK download average.
Best value broadband deal in Mumbles, Swansea (SA3)
The best value in Mumbles, Swansea (SA3) on full first-year cost is Plusnet's Full Fibre 145: £292 across year one, about £24 a month. A £155 reward card is bundled in. 145 Mbps covers streaming, video calls and working from home.
Best value in Mumbles, Swansea (SA3)
£22.99/mo
rises to £26.99 in March 2027 (+£4)
Avg £26.32/mo over contract · £632 total over 24 months
Fastest broadband deal in Mumbles, Swansea (SA3)
The fastest deal available in Mumbles, Swansea (SA3) is You 8000 from YouFibre at 7,000 Mbps.
Fastest in Mumbles, Swansea (SA3)
£99/mo
No rises, no surprises.
£1188 total over 12 months
Cheapest broadband deal in Mumbles, Swansea (SA3)
The cheapest deal in Mumbles, Swansea (SA3) is Fast 24m from giffgaff at £5.00 a month for 200 Mbps. It's full fibre, so the advertised speed is the speed that reaches the router. The £5.00 is an intro price that rises to £25.00 a month after the intro window, making the real first-year cost £180. Comfortably faster than the UK average.
Cheapest in Mumbles, Swansea (SA3)
£5/mo
for 6 months, then £25/mo
Avg £20/mo over contract · £480 total over 24 months
Compare broadband deals in Mumbles, Swansea (SA3)
£5/mo
for 6 months, then £28/mo
Avg £22.25/mo over contract · £534 total over 24 months
Full Fibre 1.6GB Premium
115 Mbps upload · Full Fibre
Best for power users & big households
£33.99/mo
rises to £37.99 in March 2027 (+£4)
Avg £37.32/mo over contract · £896 total over 24 months
Sky Full Fibre Gigafast
100 Mbps upload · Full Fibre
Best for power users & big households
£31/mo
No rises, no surprises.
£749 total over 24 months
Onestream Fibre 55
10 Mbps upload · Hybrid Fibre
Best for small homes, single 4K streamer
£19.94/mo
rises to £22.69 in April 2027 (+£2.75)
Avg £22/mo over contract · £528 total over 24 months
Broadband providers in Mumbles, Swansea (SA3)
20 providers serve Mumbles, Swansea (SA3), with YouFibre the fastest at 7,000 Mbps.
Ranked by Ofcom complaints per 100,000 customers, fewest first. A down arrow is below the industry average, up is above, and a dash means Ofcom publishes no figure for that provider (usually because it is below Ofcom's 1.5% market-share reporting threshold). A small diagonal arrow shows the past-year trend (↘ improving, ↗ getting worse).
Ofcom records the typical Mumbles, Swansea (SA3) download speed at 93 Mbps.
Upgrade nudge
Room to upgrade in Mumbles, Swansea (SA3)
Only 11% of the 9,000 connections here are on 300Mbps or faster, even though 77% can get gigabit.
The faster line is already there. For most of these homes it is the contract holding them back, not the infrastructure.
Is your broadband good enough?
The typical Mumbles, Swansea (SA3) line runs 93 Mbps.
Working from home
OKStreaming and family use
GoodWhat speeds are people actually getting?
Gigabit reaches 77% of Mumbles, Swansea (SA3), and the fastest available is 1,000 Mbps. The full split by band is below.
Which broadband networks reach Mumbles, Swansea (SA3)?
The wholesale networks carrying Mumbles, Swansea (SA3) broadband, from Openreach to Virgin Media and the altnets, read off the live deals.
Full-fibre altnets that have rolled out in Mumbles, Swansea (SA3). They don't reach every address, but where they do, the gigabit pricing is normally sharper than the Openreach equivalent.
- CityFibre: Sky, The One Broadband
- 4th Utility: 4th Utility, Rise Fibre
Plus Openreach and Virgin Media O2 (Openreach is laid to virtually every UK address).
Today's live count in Mumbles, Swansea (SA3): 20 providers on the page.
What broadband coverage does Mumbles, Swansea (SA3) have?
Superfast broadband reaches 95% of Mumbles, Swansea (SA3) premises but gigabit only 77%, so around 18% of homes can get fast broadband but not the fastest.
Can I rely on mobile broadband in Mumbles, Swansea (SA3)?
Outdoor 5G reaches 99% of Mumbles, Swansea (SA3) homes. Here is how mobile holds up if the line drops.
5G & 4G home broadband
Outdoor 5G covers 99% of Mumbles, Swansea (SA3), enough for a 5G home-broadband hub to stand in for a fixed line.
How Mumbles, Swansea (SA3) compares within Swansea
Across 7 postcode districts in Swansea, by premises count, typical speed and gigabit coverage.
Nearby areas
Frequently asked questions
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* Based on Go.Compare research estimating that 28% of UK broadband users pay for faster broadband speeds than they need (which we interpret as overpaying), equivalent to around 7.5m UK households.
Speed and coverage figures for Mumbles, Swansea (SA3)come from Ofcom's Connected Nations data, current to January 2026. Deal prices are pulled live from providers. Compiled by the FindBroadband team. See how we rank and source our data.