15 providers offer 137 broadband deals in St Mary's Bay, from £13.50 a month (£18 after 12 months) and up to 2,300 Mbps. Typical measured speed is 51 Mbps down and 15 Mbps up, 50% below the UK download average. Full fibre is available to 77.5% of homes.
Deals for St Mary's Bay, checked and refreshed daily.
Best value broadband deal in St Mary's Bay
The best value in St Mary's Bay on full first-year cost is 4th Utility's 300Mbps Full Fibre (24 Months): £225 across year one, about £19 a month. At 300 Mbps it copes with anything a household runs at once.
Best value in St Mary's Bay
£18.75/mo
for 12 months, then £25/mo
Cheapest broadband deal in St Mary's Bay
The cheapest deal in St Mary's Bay is 150Mbps Full Fibre (24 Months) from 4th Utility at £13.50 a month for 150 Mbps. It's full fibre, so the advertised speed is the speed that reaches the router. The £13.50 is an intro price that rises to £18.00 a month after the intro window, making the real first-year cost £162. Next cheapest is Rise Fibre at £18.00 a month. Above the UK average on download.
Cheapest in St Mary's Bay
£13.50/mo
for 12 months, then £18/mo
Runner-up on price
£18/mo
for 12 months, then £23/mo
Fastest broadband deal in St Mary's Bay
The fastest deal available in St Mary's Bay is Full Fibre Max from Zen Internet at 2,300 Mbps. Next fastest is Full Fibre 1.6GB from EE at 1,600 Mbps.
Fastest in St Mary's Bay
£45/mo
No rises, no surprises.
Runner-up on speed
£33.99/mo
rises to £37.99 in March 2027 (+£4)
Compare broadband deals in St Mary's Bay
£22.99/mo
rises to £26.99 in March 2027 (+£4)
£23/mo
No rises, no surprises.
£18/mo
for 12 months, then £23/mo
£25.99/mo
rises to £29.99 in March 2027 (+£4)
Broadband providers in St Mary's Bay
15 providers serve St Mary's Bay including Sky, BT and Vodafone, with Zen Internet the fastest at 2,300 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 Mary's Bay download speed at 51 Mbps.
Upgrade nudge
Room to upgrade in St Mary's Bay
Only 5% are on 300Mbps or faster, even though 77% 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 Mary's Bay line runs 51 Mbps.
Working from home
OKStreaming and family use
OKWhat speeds are people actually getting?
Gigabit reaches 77% of St Mary's Bay, and the fastest available is 1,000 Mbps. The full split by band is below.
What broadband coverage does St Mary's Bay have?
Superfast broadband reaches 99% of St Mary's Bay premises but gigabit only 77%, so around 22% of homes can get fast broadband but not the fastest.
Can I rely on mobile broadband in St Mary's Bay?
Outdoor 5G reaches 100% of St Mary's Bay 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 St Mary's Baycome 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.