11 providers offer 41 broadband deals in St Mawes, from £19.94 a month and up to 80 Mbps. Typical measured speed is 63 Mbps down and 14 Mbps up, 38% below the UK download average. Full fibre is available to 59.6% of homes.
Deals for St Mawes, checked and refreshed daily.
Cheapest broadband deal in St Mawes
The cheapest deal in St Mawes is Onestream Fibre 55 from Onestream at £19.94 a month for 40 Mbps. POP Telecom is essentially level at £22.00 a month. Well below the UK average, which shows on a busy evening.
Cheapest in St Mawes
£19.94/mo
rises to £22.69 in April 2027 (+£2.75)
Runner-up on price
£21/mo
rises to £24 in April 2027 (+£3)
Fastest broadband deal in St Mawes
The fastest deal available in St Mawes is Onestream Fibre 80 from Onestream at 80 Mbps. Below the UK average on download.
Fastest in St Mawes
£21.45/mo
rises to £24.20 in April 2027 (+£2.75)
Compare broadband deals in St Mawes
£24/mo
No rises, no surprises.
£22.99/mo
rises to £26.99 in March 2027 (+£4)
£21/mo
rises to £24 in April 2027 (+£3)
£24/mo
No rises, no surprises.
Broadband providers in St Mawes
11 providers serve St Mawes including Sky, BT and Vodafone, with Onestream the fastest at 80 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 Mawes download speed at 63 Mbps.
Upgrade nudge
Room to upgrade in St Mawes
Only 1% are on 300Mbps or faster, even though 60% 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 Mawes line runs 63 Mbps.
Working from home
OKStreaming and family use
OKWhat speeds are people actually getting?
Gigabit reaches 60% of St Mawes, and the fastest available is 1,000 Mbps. The full split by band is below.
What broadband coverage does St Mawes have?
Superfast broadband reaches 100% of St Mawes premises but gigabit only 60%, so around 40% of homes can get fast broadband but not the fastest.
Can I rely on mobile broadband in St Mawes?
Outdoor 5G reaches 90% of St Mawes, 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 Mawescome 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.