16 providers offer 195 broadband deals in Gwynedd, from £20 a month (£40 after 12 months) and up to 1,600 Mbps. Typical measured speed is 63 Mbps down and 16 Mbps up, 38% below the UK download average. Full fibre is available to 66.7% of homes.
Deals for Gwynedd, checked and refreshed daily.
Best value broadband deal in Gwynedd
The best value in Gwynedd on full first-year cost is 4th Utility's 900Mb Full Fibre (24 Months): £264 across year one, about £22 a month. At 900 Mbps it copes with anything a household runs at once.
Best value in Gwynedd
£22/mo
for 12 months, then £44/mo
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 £20.86 a month.
Cheapest in Gwynedd
£20/mo
for 12 months, then £40/mo
Runner-up on price
£19.94/mo
rises to £22.69 in April 2027 (+£2.75)
Fastest broadband deal in Gwynedd
The fastest deal available in Gwynedd is Full Fibre 1.6GB from EE at 1,600 Mbps. Zen Internet matches it at the same top speed.
Fastest in Gwynedd
£33.99/mo
rises to £37.99 in March 2027 (+£4)
Runner-up on speed
£45/mo
No rises, no surprises.
Compare broadband deals in Gwynedd
£22.99/mo
rises to £26.99 in March 2027 (+£4)
£23/mo
No rises, no surprises.
£23.99/mo
rises to £27.99 in March 2027 (+£4)
£25/mo
rises to £29 in April 2027 (+£4)
Broadband providers in Gwynedd
16 providers serve Gwynedd including Sky, BT and Vodafone, 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.
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.
The two 5G figures differ. “5G availability” is everyday 5G running on the existing 4G core, which is what most phones show. “Next-gen 5G” is standalone 5G: a full 5G network with lower lag, still reaching fewer places.
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.
Postcode districts in Gwynedd
Towns in Gwynedd
Nearby areas
Frequently asked questions
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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.