18 providers offer 213 broadband deals in St Day, from £20.00 a month and up to 1,600 Mbps. Typical measured speed is 64 Mbps down and 15 Mbps up, 37% below the UK download average.
Best value broadband deal in St Day, Cornwall
The best value in St Day, 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 Day, 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 Day, Cornwall
The fastest deal available in St Day, Cornwall is Full Fibre 1.6GB Premium from EE at 1,600 Mbps.
Fastest in St Day, 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 Day, Cornwall
The cheapest deal in St Day, 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 Day, 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 Day, 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 Day, Cornwall
18 providers serve St Day, 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 Day, Cornwall download speed at 64 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 Day, Cornwall line runs 64 Mbps.
Working from home
OKStreaming and family use
OKWhat speeds are people actually getting?
Gigabit reaches 12% of St Day, Cornwall, and the fastest available is 1,000 Mbps. The full split by band is below.
Which broadband networks reach St Day, Cornwall?
The wholesale networks carrying St Day, Cornwall broadband, from Openreach to Virgin Media and the altnets, read off the live deals.
Independently-built fibre networks in St Day, Cornwall, taken from the live deal mix. They don't cover every street, but on streets they reach, they typically beat the Openreach price.
- CityFibre: Sky, The One Broadband, Vodafone
- 4th Utility: 4th Utility, Rise Fibre
Of the major networks, Openreach and Virgin Media O2 are also live here (Openreach is laid to virtually every UK address).
Today's live count in St Day, Cornwall: 18 providers on the page.
What broadband coverage does St Day, Cornwall have?
Superfast broadband reaches 100% of St Day, Cornwall premises but gigabit only 12%, so around 88% of homes can get fast broadband but not the fastest.
Can I rely on mobile broadband in St Day, Cornwall?
Outdoor 5G reaches 90% of St Day, 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 Day, 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.