18 providers offer 213 broadband deals in Mynyddygarreg, from £20.00 a month and up to 7,000 Mbps. Typical measured speed is 46 Mbps down and 11 Mbps up, 54% below the UK download average.
Best value broadband deal in Mynyddygarreg, Carmarthenshire
The best value in Mynyddygarreg, Carmarthenshire 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 Mynyddygarreg, Carmarthenshire
£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 Mynyddygarreg, Carmarthenshire
The fastest deal available in Mynyddygarreg, Carmarthenshire is You 8000 from YouFibre at 7,000 Mbps.
Fastest in Mynyddygarreg, Carmarthenshire
£99/mo
No rises, no surprises.
£1188 total over 12 months
Cheapest broadband deal in Mynyddygarreg, Carmarthenshire
The cheapest deal in Mynyddygarreg, Carmarthenshire 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 Mynyddygarreg, Carmarthenshire
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 Mynyddygarreg, Carmarthenshire
£21/mo
rises to £24 in April 2027 (+£3)
Avg £23.25/mo over contract · £558 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 Mynyddygarreg, Carmarthenshire
18 providers serve Mynyddygarreg, Carmarthenshire, 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 Mynyddygarreg, Carmarthenshire download speed at 46 Mbps.
Upgrade nudge
You could be getting more.
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 Mynyddygarreg, Carmarthenshire line runs 46 Mbps.
Working from home
OKStreaming and family use
OKWhat speeds are people actually getting?
Gigabit reaches 42% of Mynyddygarreg, Carmarthenshire, and the fastest available is 160 Mbps. The full split by band is below.
Which broadband networks reach Mynyddygarreg, Carmarthenshire?
The wholesale networks carrying Mynyddygarreg, Carmarthenshire broadband, from Openreach to Virgin Media and the altnets, read off the live deals.
Independent altnets reaching Mynyddygarreg, Carmarthenshire, listed below. The companies that build their own fibre rather than reselling someone else's, which is often the cheapest gigabit on the street.
- CityFibre: Sky, The One Broadband, Vodafone
- 4th Utility: 4th Utility, Rise Fibre
Add to the list Openreach and Virgin Media O2 (Openreach is built out to roughly every house in the country).
Real provider count in Mynyddygarreg, Carmarthenshire: 18 actively selling into addresses.
What broadband coverage does Mynyddygarreg, Carmarthenshire have?
Superfast broadband reaches 94% of Mynyddygarreg, Carmarthenshire premises but gigabit only 42%, so around 52% of homes can get fast broadband but not the fastest.
Can I rely on mobile broadband in Mynyddygarreg, Carmarthenshire?
Outdoor 5G reaches 92% of Mynyddygarreg, Carmarthenshire, but 2% of homes get no indoor 4G from any network, so a mobile backup here wants a window.
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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 Mynyddygarreg, Carmarthenshirecome 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.