12 providers offer 53 broadband deals in Caston, from £20 a month and up to 900 Mbps. Typical measured speed is 60 Mbps down and 15 Mbps up, 41% below the UK download average. Full fibre is available to 72.4% of homes.
Deals for Caston, checked and refreshed daily.
Best value broadband deal in Caston
The best value in Caston on full first-year cost is Truespeed's Truespeed 300 - 18 months: £288 across year one, about £24 a month. At 300 Mbps it copes with anything a household runs at once.
Best value in Caston
£24/mo
No rises, no surprises.
Cheapest broadband deal in Caston
The cheapest deal in Caston is Truespeed 150 - 18 months from Truespeed at £20.00 a month for 150 Mbps. It's full fibre, so the advertised speed is the speed that reaches the router. Onestream is essentially level at £20.86 a month. Above the UK average on download.
Cheapest in Caston
£20/mo
No rises, no surprises.
Runner-up on price
£19.94/mo
rises to £22.69 in April 2027 (+£2.75)
Fastest broadband deal in Caston
The fastest deal available in Caston is Truespeed 900 - 18 months from Truespeed at 900 Mbps.
Fastest in Caston
£29/mo
No rises, no surprises.
Compare broadband deals in Caston
£24/mo
No rises, no surprises.
£22.99/mo
rises to £26.99 in March 2027 (+£4)
£19.94/mo
rises to £22.69 in April 2027 (+£2.75)
£21/mo
rises to £24 in April 2027 (+£3)
Broadband providers in Caston
12 providers serve Caston including Sky, BT and Vodafone, with Truespeed the fastest at 900 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 Caston download speed at 60 Mbps.
Upgrade nudge
Room to upgrade in Caston
Only 3% are on 300Mbps or faster, even though 72% 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 Caston line runs 60 Mbps.
Working from home
OKStreaming and family use
OKWhat speeds are people actually getting?
Gigabit reaches 72% of Caston, and the fastest available is 1,000 Mbps. The full split by band is below.
What broadband coverage does Caston have?
Superfast broadband reaches 100% of Caston premises but gigabit only 72%, so around 28% of homes can get fast broadband but not the fastest.
Can I rely on mobile broadband in Caston?
Outdoor 5G reaches 96% of Caston homes. Here is how mobile holds up if the line drops.
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.
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Speed and coverage figures for Castoncome 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.