17 providers offer 191 broadband deals in Gwynedd, from £20.00 a month and up to 1,600 Mbps. Typical measured speed is 63 Mbps down and 16 Mbps up, 38% below the UK download average.
Best value broadband deal in Gwynedd
The best value in Gwynedd 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 Gwynedd
£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 Gwynedd
The fastest deal available in Gwynedd is Full Fibre 1.6GB Premium from EE at 1,600 Mbps.
Fastest in Gwynedd
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
Cheapest broadband deal in Gwynedd
The cheapest deal in Gwynedd is 300Mb Full Fibre (24 Months) from 4th Utility at £20.00 a month for 300 Mbps. It's full fibre, so the advertised speed is the speed that reaches the router. The £20.00 is an intro price that rises to £40.00 a month after the intro window, making the real first-year cost £240. Onestream is essentially level at £20.63 a month.
Cheapest in Gwynedd
300Mb Full Fibre (24 Months)
300 Mbps upload · Full Fibre
Best for 4–5 person households, heavy use
£20/mo
for 12 months, then £40/mo
Avg £30/mo over contract · £720 total over 24 months
Runner-up on price
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
Compare broadband deals in Gwynedd
£21/mo
rises to £24 in April 2027 (+£3)
Avg £23.25/mo over contract · £558 total over 24 months
£30/mo
rises to £33.50 in April 2027 (+£3.50)
Avg £32.63/mo over contract · £783 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 Gwynedd
17 providers serve Gwynedd, with EE the fastest at 1,600 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 Gwynedd download speed at 63 Mbps.
Upgrade nudge
Room to upgrade in Gwynedd
Only 4% of the 35,000 connections here are on 300Mbps or faster, even though 66% 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 Gwynedd line runs 63 Mbps.
Working from home
OKStreaming and family use
OKWhat speeds are people actually getting?
Gigabit reaches 66% of Gwynedd, and the fastest available is 1,000 Mbps. The full split by band is below.
Which broadband networks reach Gwynedd?
The wholesale networks carrying Gwynedd broadband, from Openreach to Virgin Media and the altnets, read off the live deals.
Real altnet coverage in Gwynedd, not the press release version. The list comes from who is actually selling deals at addresses here, network by network.
- CityFibre: Sky, The One Broadband, Vodafone
- 4th Utility: 4th Utility, Rise Fibre
Of the major networks, Openreach are also live here (Openreach is on every street, so the interesting variable is the altnets).
Currently 17 providers have addressable deals in Gwynedd.
What broadband coverage does Gwynedd have?
Superfast broadband reaches 90% of Gwynedd premises but gigabit only 66%, so around 24% of homes can get fast broadband but not the fastest.
Can I rely on mobile broadband in Gwynedd?
Outdoor 5G reaches 84% of Gwynedd, but 2% of homes get no indoor 4G from any network, so a mobile backup here wants a window.
Broadband speeds by Gwynedd neighbourhood
Measured speeds range from 81 Mbps in Harlech a Llanbedr to 41 Mbps in Harlech a Llanbedr, so your street matters more than the Gwynedd average.
| Neighbourhood | Median | vs area | Upload | Superfast | Gigabit | 5G |
|---|---|---|---|---|---|---|
| Harlech a Llanbedr LL47 | 81 | +18 | 25 | 81% | 42% | 84% |
| Dyffryn Ardudwy LL43 | 75 | +13 | 20 | 74% | 74% | 84% |
| Arthog a Llangelynnin LL37 | 74 | +11 | 15 | 100% | 97% | 84% |
| Bro Dysynni LL36 | 69 | +7 | 15 | 84% | 39% | 84% |
| Y Groeslon LL54 | 68 | +6 | 17 | 94% | 89% | 84% |
| Brithdir and Llanfachreth/Ganllwyd/Llanelltyd LL40 | 68 | +5 | 17 | 81% | 50% | 84% |
| Pen draw Llŷn LL53 | 67 | +4 | 16 | 87% | 76% | 84% |
| Dolbenmaen LL51 | 67 | +4 | 17 | 81% | 39% | 84% |
| Abermaw LL42 | 64 | +2 | 15 | 97% | 17% | 84% |
| Gorllewin Porthmadog LL49 | 64 | +1 | 18 | 95% | 89% | 84% |
| Canol Bangor LL57 | 62 | 0 | 16 | 94% | 70% | 84% |
| Canol Tref Caernarfon LL55 | 61 | -1 | 17 | 94% | 74% | 84% |
| Criccieth LL52 | 60 | -2 | 16 | 92% | 88% | 84% |
| Penrhyndeudraeth LL48 | 60 | -3 | 16 | 95% | 24% | 84% |
| Dyffryn Ardudwy LL44 | 55 | -8 | 14 | 91% | 7% | 84% |
| Bethel a'r Felinheli LL56 | 55 | -8 | 14 | 94% | 89% | 84% |
| Llandderfel LL23 | 54 | -9 | 14 | 85% | 78% | 84% |
| Harlech a Llanbedr LL46 | 54 | -9 | 13 | 86% | 25% | 84% |
| Bowydd a'r Rhiw LL41 | 52 | -11 | 13 | 90% | 65% | 84% |
| Arthog a Llangelynnin LL38 | 51 | -12 | 11 | 100% | 98% | 84% |
| Arthog a Llangelynnin LL39 | 48 | -15 | 21 | 94% | 94% | 84% |
| Aberdyfi LL35 | 45 | -18 | 11 | 90% | 8% | 84% |
| Harlech a Llanbedr LL45 | 41 | -21 | 11 | 98% | 95% | 84% |
Measured Ofcom data per Gwynedd neighbourhood, ranked fastest first. Median and upload are in Mbps; vs area is the median difference from the Gwynedd average; superfast, gigabit and 5G are the % of premises covered. Swipe the table sideways for more columns.
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Nearby areas
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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 Gwyneddcome 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.