19 providers offer 213 broadband deals in Letchworth, from £15.00 a month and up to 7,000 Mbps. Typical measured speed is 125 Mbps down and 19 Mbps up, 24% above the UK download average.
Best value broadband deal in Letchworth, North Hertfordshire (SG6)
The best value in Letchworth, North Hertfordshire (SG6) on full first-year cost is Plusnet's Full Fibre 145: £292 across year one, about £24 a month. A £155 reward card is bundled in. 145 Mbps covers streaming, video calls and working from home.
Best value in Letchworth, North Hertfordshire (SG6)
£22.99/mo
rises to £26.99 in March 2027 (+£4)
Avg £26.32/mo over contract · £632 total over 24 months
Fastest broadband deal in Letchworth, North Hertfordshire (SG6)
The fastest deal available in Letchworth, North Hertfordshire (SG6) is You 8000 from YouFibre at 7,000 Mbps.
Fastest in Letchworth, North Hertfordshire (SG6)
£99/mo
No rises, no surprises.
£1188 total over 12 months
Cheapest broadband deal in Letchworth, North Hertfordshire (SG6)
The cheapest deal in Letchworth, North Hertfordshire (SG6) is Fast 24m from giffgaff at £5.00 a month for 200 Mbps. It's full fibre, so the advertised speed is the speed that reaches the router. The £5.00 is an intro price that rises to £25.00 a month after the intro window, making the real first-year cost £180. Comfortably faster than the UK average.
Cheapest in Letchworth, North Hertfordshire (SG6)
£5/mo
for 6 months, then £25/mo
Avg £20/mo over contract · £480 total over 24 months
Compare broadband deals in Letchworth, North Hertfordshire (SG6)
£5/mo
for 6 months, then £28/mo
Avg £22.25/mo over contract · £534 total over 24 months
Full Fibre 1.6GB Premium
115 Mbps upload · Full Fibre
Best for power users & big households
£33.99/mo
rises to £37.99 in March 2027 (+£4)
Avg £37.32/mo over contract · £896 total over 24 months
Sky Full Fibre Gigafast
100 Mbps upload · Full Fibre
Best for power users & big households
£31/mo
No rises, no surprises.
£749 total over 24 months
Onestream Fibre 55
10 Mbps upload · Hybrid Fibre
Best for small homes, single 4K streamer
£19.94/mo
rises to £22.69 in April 2027 (+£2.75)
Avg £22/mo over contract · £528 total over 24 months
Broadband providers in Letchworth, North Hertfordshire (SG6)
19 providers serve Letchworth, North Hertfordshire (SG6), 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 Letchworth, North Hertfordshire (SG6) download speed at 125 Mbps.
Upgrade nudge
Room to upgrade in Letchworth, North Hertfordshire (SG6)
Only 19% of the 11,000 connections here are on 300Mbps or faster, even though 87% 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 Letchworth, North Hertfordshire (SG6) line runs 125 Mbps.
Working from home
OKStreaming and family use
GoodWhat speeds are people actually getting?
Gigabit reaches 87% of Letchworth, North Hertfordshire (SG6), and the fastest available is 1,000 Mbps. The full split by band is below.
Which broadband networks reach Letchworth, North Hertfordshire (SG6)?
The wholesale networks carrying Letchworth, North Hertfordshire (SG6) broadband, from Openreach to Virgin Media and the altnets, read off the live deals.
Full-fibre altnets that have rolled out in Letchworth, North Hertfordshire (SG6). They don't reach every address, but where they do, the gigabit pricing is normally sharper than the Openreach equivalent.
- CityFibre: Sky, The One Broadband
- 4th Utility: 4th Utility, Rise Fibre
Of the major networks, Openreach and Virgin Media O2 are also live here (Openreach is on every street, so the interesting variable is the altnets).
Today's live count in Letchworth, North Hertfordshire (SG6): 19 providers on the page.
What broadband coverage does Letchworth, North Hertfordshire (SG6) have?
Superfast broadband reaches 98% of Letchworth, North Hertfordshire (SG6) premises but gigabit only 87%, so around 11% of homes can get fast broadband but not the fastest.
Can I rely on mobile broadband in Letchworth, North Hertfordshire (SG6)?
Outdoor 5G reaches 99% of Letchworth, North Hertfordshire (SG6) homes. Here is how mobile holds up if the line drops.
5G & 4G home broadband
Outdoor 5G covers 99% of Letchworth, North Hertfordshire (SG6), enough for a 5G home-broadband hub to stand in for a fixed line.
How Letchworth, North Hertfordshire (SG6) compares within North Hertfordshire
Across 5 postcode districts in North Hertfordshire, by premises count, typical speed and gigabit coverage.
Nearby areas
Frequently asked questions
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* Based on Go.Compare research estimating that 28% of UK broadband users pay for faster broadband speeds than they need (which we interpret as overpaying), equivalent to around 7.5m UK households.
Speed and coverage figures for Letchworth, North Hertfordshire (SG6)come 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.