18 providers offer 213 broadband deals in Carnon Downs, from £20.00 a month and up to 1,600 Mbps. Typical measured speed is 64 Mbps down and 17 Mbps up, 37% below the UK download average.
Best value broadband deal in Carnon Downs, Cornwall
The best value in Carnon Downs, Cornwall 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 Carnon Downs, Cornwall
£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 Carnon Downs, Cornwall
The fastest deal available in Carnon Downs, Cornwall is Full Fibre 1.6GB Premium from EE at 1,600 Mbps.
Fastest in Carnon Downs, Cornwall
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 Carnon Downs, Cornwall
The cheapest deal in Carnon Downs, Cornwall 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 Carnon Downs, Cornwall
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 Carnon Downs, Cornwall
£21/mo
rises to £24 in April 2027 (+£3)
Avg £23.25/mo over contract · £558 total over 24 months
Gig1 Broadband Only
41 Mbps upload · Hybrid Fibre-Coaxial
Best for power users & big households
£25.99/mo
rises to £29.99 in April 2027 (+£4)
Avg £28.99/mo over contract · £696 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 Carnon Downs, Cornwall
18 providers serve Carnon Downs, Cornwall, 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 Carnon Downs, Cornwall download speed at 64 Mbps.
Upgrade nudge
Room to upgrade in Carnon Downs, Cornwall
Only 4% 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 Carnon Downs, Cornwall line runs 64 Mbps.
Working from home
OKStreaming and family use
OKWhat speeds are people actually getting?
Gigabit reaches 77% of Carnon Downs, Cornwall, and the fastest available is 1,000 Mbps. The full split by band is below.
Which broadband networks reach Carnon Downs, Cornwall?
The wholesale networks carrying Carnon Downs, Cornwall broadband, from Openreach to Virgin Media and the altnets, read off the live deals.
Live altnets in Carnon Downs, Cornwall, drawn from the providers actually selling deals here. Where they reach, the gigabit prices are normally the lowest on the page.
- CityFibre: Sky, The One Broadband, Vodafone
- 4th Utility: 4th Utility, Rise Fibre
And the major networks: Openreach and Virgin Media O2 both reach this area (Openreach is built out to roughly every house in the country).
18 providers are live with broadband deals in Carnon Downs, Cornwall.
What broadband coverage does Carnon Downs, Cornwall have?
Superfast broadband reaches 96% of Carnon Downs, Cornwall premises but gigabit only 77%, so around 19% of homes can get fast broadband but not the fastest.
Can I rely on mobile broadband in Carnon Downs, Cornwall?
Outdoor 5G reaches 90% of Carnon Downs, Cornwall, but 2% of homes get no indoor 4G from any network, so a mobile backup here wants a window.
More areas in Cornwall
Nearby areas
Frequently asked questions
Ready to switch
See what's actually live in Carnon Downs, Cornwall.
Enter your address and we'll show every deal you can genuinely order on your line, ranked by what you'll pay across the whole contract, not by who pays us.
* 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 Carnon Downs, Cornwallcome 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.