18 providers offer 213 broadband deals in St Just, from £20.00 a month and up to 1,600 Mbps. Typical measured speed is 59 Mbps down and 14 Mbps up, 42% below the UK download average.
Best value broadband deal in St Just, Cornwall
The best value in St Just, 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 St Just, 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 St Just, Cornwall
The fastest deal available in St Just, Cornwall is Full Fibre 1.6GB Premium from EE at 1,600 Mbps.
Fastest in St Just, 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 St Just, Cornwall
The cheapest deal in St Just, 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 St Just, 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 St Just, 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 St Just, Cornwall
18 providers serve St Just, 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 St Just, Cornwall download speed at 59 Mbps.
Upgrade nudge
You could be getting more.
Prices drift above the market rate the longer a contract runs, so if you have not compared in over a year you are likely paying more than you need to.
Is your broadband good enough?
The typical St Just, Cornwall line runs 59 Mbps.
Working from home
OKStreaming and family use
OKWhat speeds are people actually getting?
Gigabit reaches 23% of St Just, Cornwall, and the fastest available is 1,000 Mbps. The full split by band is below.
Which broadband networks reach St Just, Cornwall?
The wholesale networks carrying St Just, Cornwall broadband, from Openreach to Virgin Media and the altnets, read off the live deals.
Real altnet coverage in St Just, Cornwall, 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
Then there's Openreach and Virgin Media O2 (Openreach covers virtually every UK premises, so it'll reach you).
Right now 18 providers are running deals to addresses in St Just, Cornwall.
What broadband coverage does St Just, Cornwall have?
Superfast broadband reaches 98% of St Just, Cornwall premises but gigabit only 23%, so around 75% of homes can get fast broadband but not the fastest.
Can I rely on mobile broadband in St Just, Cornwall?
Outdoor 5G reaches 90% of St Just, Cornwall, 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 St Just, 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.