20 providers offer 275 broadband deals in South Kesteven, from £20 a month (£40 after 12 months) and up to 7,000 Mbps. Typical measured speed is 84 Mbps down and 31 Mbps up, 17% below the UK download average. Full fibre is available to 75.9% of homes.
Deals for South Kesteven, checked and refreshed daily.
Best value broadband deal in South Kesteven
The best value in South Kesteven on full first-year cost is toob's Home 900: £248 across year one, about £21 a month. At 900 Mbps it copes with anything a household runs at once.
Best value in South Kesteven
£20/mo
rises to £22 in April 2027 (+£2)
Cheapest broadband deal in South Kesteven
The cheapest deal in South Kesteven 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. YouFibre is essentially level at £20.00 a month.
Cheapest in South Kesteven
£20/mo
for 12 months, then £40/mo
Runner-up on price
£20/mo
No rises, no surprises.
Fastest broadband deal in South Kesteven
The fastest deal available in South Kesteven is You 8000 from YouFibre at 7,000 Mbps. Next fastest is Home 2300 from toob at 2,300 Mbps.
Fastest in South Kesteven
£50/mo
No rises, no surprises.
Runner-up on speed
£29/mo
rises to £31 in April 2027 (+£2)
Compare broadband deals in South Kesteven
£22.99/mo
rises to £26.99 in March 2027 (+£4)
£1/mo
for 1 month, then £32.99/mo
£23/mo
No rises, no surprises.
£25/mo
rises to £29 in April 2027 (+£4)
Broadband providers in South Kesteven
20 providers serve South Kesteven including Virgin Media, Sky and BT, with YouFibre the fastest at 7,000 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 South Kesteven download speed at 84 Mbps.
Upgrade nudge
Room to upgrade in South Kesteven
Only 11% of the 44,000 connections here are on 300Mbps or faster, even though 75% 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 South Kesteven line runs 84 Mbps.
Working from home
OKStreaming and family use
GoodWhat speeds are people actually getting?
Gigabit reaches 75% of South Kesteven, and the fastest available is 1,000 Mbps. The full split by band is below.
What broadband coverage does South Kesteven have?
Superfast broadband reaches 92% of South Kesteven premises but gigabit only 75%, so around 17% of homes can get fast broadband but not the fastest.
Can I rely on mobile broadband in South Kesteven?
Outdoor 5G reaches 97% of South Kesteven 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.
5G & 4G home broadband
Outdoor 5G covers 97% of South Kesteven, enough for a 5G home-broadband hub to stand in for a fixed line.
Broadband speeds by South Kesteven neighbourhood
Measured speeds range from 130 Mbps in Grantham St Wulfram's to 57 Mbps in Isaac Newton, so your street matters more than the South Kesteven average.
| Neighbourhood | Median | vs area | Upload | Superfast | Gigabit | 5G |
|---|---|---|---|---|---|---|
| Grantham St Wulfram's NG31 | 130 | +46 | 30 | 97% | 85% | 97% |
| Bourne Austerby PE10 | 80 | -5 | 26 | 94% | 89% | 97% |
| Stamford St Mary's PE9 | 66 | -19 | 51 | 95% | 82% | 96% |
| Belvoir NG32 | 61 | -24 | 16 | 85% | 71% | 97% |
| Isaac Newton NG33 | 57 | -28 | 13 | 78% | 34% | 97% |
Measured Ofcom data per South Kesteven neighbourhood, ranked fastest first. Median and upload are in Mbps; vs area is the median difference from the South Kesteven average; superfast, gigabit and 5G are the % of premises covered. Swipe the table sideways for more columns.
Postcode districts in South Kesteven
Towns in South Kesteven
Nearby areas
Frequently asked questions
Ready to switch
See what's actually live in South Kesteven.
Enter your address and we'll show every deal you can genuinely order on your line, ranked by what you'll pay across the whole contract, not by who pays us.
Speed and coverage figures for South Kestevencome 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.