Full fibre reaches 71.0% of homes in St Mabyn, though only 9% of connections run at 300 Mbps or faster. Typical measured speed is 81 Mbps down and 21 Mbps up, 20% below the UK download average. 14 providers offer 178 broadband deals, up to 1,600 Mbps.
Deals for St Mabyn, checked and refreshed daily.
Best value broadband deal in St Mabyn
The best value in St Mabyn on full first-year cost is 4th Utility's 300Mb Full Fibre (24 Months): £240 across year one, about £20 a month. At 300 Mbps it copes with anything a household runs at once.
Best value in St Mabyn
£20/mo
for 12 months, then £40/mo
Cheapest broadband deal in St Mabyn
The cheapest deal in St Mabyn is Fibre 40 from Onestream at £18.50 a month for 40 Mbps. 4th Utility is essentially level at £20.00 a month. Well below the UK average, which shows on a busy evening.
Cheapest in St Mabyn
£18.50/mo
rises to £21.25 in April 2027 (+£2.75)
Runner-up on price
£20/mo
for 12 months, then £40/mo
Fastest broadband deal in St Mabyn
The fastest deal available in St Mabyn is Full Fibre 1.6GB from EE at 1,600 Mbps. Zen Internet matches it at the same top speed.
Fastest in St Mabyn
£38.99/mo
rises to £42.99 in March 2027 (+£4)
Runner-up on speed
£45/mo
No rises, no surprises.
Compare broadband deals in St Mabyn
£22.99/mo
rises to £26.99 in March 2027 (+£4)
£27.99/mo
rises to £31.99 in March 2027 (+£4)
£23/mo
No rises, no surprises.
£23/mo
No rises, no surprises.
Broadband providers in St Mabyn
14 providers serve St Mabyn including Sky, BT and Vodafone, 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 Mabyn download speed at 81 Mbps.
Upgrade nudge
Room to upgrade in St Mabyn
Only 9% are on 300Mbps or faster, even though 71% 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 St Mabyn line runs 81 Mbps.
Working from home
OKStreaming and family use
GoodWhat speeds are people actually getting?
Gigabit reaches 71% of St Mabyn, and the fastest available is 1,000 Mbps. The full split by band is below.
What broadband coverage does St Mabyn have?
Superfast broadband reaches 94% of St Mabyn premises but gigabit only 71%, so around 23% of homes can get fast broadband but not the fastest.
Can I rely on mobile broadband in St Mabyn?
Outdoor 5G reaches 90% of St Mabyn, but 2% of homes get no indoor 4G from any network, so a mobile backup here wants a window.
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 St Mabyncome 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.