19 providers offer 264 broadband deals in Welwyn Garden City, from £13.50 a month and up to 5,000 Mbps. Typical measured speed is 136 Mbps down and 22 Mbps up, 35% above the UK download average.
Best value broadband deal in Welwyn Garden City, Welwyn Hatfield
The best value in Welwyn Garden City, Welwyn Hatfield 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 Welwyn Garden City, Welwyn Hatfield
£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 Welwyn Garden City, Welwyn Hatfield
The fastest deal available in Welwyn Garden City, Welwyn Hatfield is Full Fibre 5 Gigafast+ from Sky at 5,000 Mbps.
Fastest in Welwyn Garden City, Welwyn Hatfield
Full Fibre 5 Gigafast+
3000 Mbps upload · Full Fibre
Best for power users & big households
£80/mo
No rises, no surprises.
£1925 total over 24 months
Cheapest broadband deal in Welwyn Garden City, Welwyn Hatfield
The cheapest deal in Welwyn Garden City, Welwyn Hatfield is 150Mb Full Fibre CityFibre (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. giffgaff is essentially level at £15.00 a month. Above the UK average on download.
Cheapest in Welwyn Garden City, Welwyn Hatfield
150Mb Full Fibre CityFibre (24 Months)
150 Mbps upload · Full Fibre
Best for 2–3 person homes, 4K streaming
£13.50/mo
for 12 months, then £18/mo
Avg £15.75/mo over contract · £378 total over 24 months
Runner-up on price
£5/mo
for 6 months, then £25/mo
Avg £20/mo over contract · £480 total over 24 months
Compare broadband deals in Welwyn Garden City, Welwyn Hatfield
£5/mo
for 6 months, then £25/mo
Avg £20/mo over contract · £480 total over 24 months
£29/mo
rises to £31 in April 2027 (+£2)
Avg £30.50/mo over contract · £732 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
150Mb Full Fibre CityFibre (24 Months)
150 Mbps upload · Full Fibre
Best for 2–3 person homes, 4K streaming
£18.50/mo
for 12 months, then £23.50/mo
Avg £21/mo over contract · £504 total over 24 months
Broadband providers in Welwyn Garden City, Welwyn Hatfield
19 providers serve Welwyn Garden City, Welwyn Hatfield, with Sky the fastest at 5,000 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 Welwyn Garden City, Welwyn Hatfield download speed at 136 Mbps.
Upgrade nudge
Room to upgrade in Welwyn Garden City, Welwyn Hatfield
Only 20% of the 17,000 connections here are on 300Mbps or faster, even though 90% 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 Welwyn Garden City, Welwyn Hatfield line runs 136 Mbps.
Working from home
OKStreaming and family use
GoodWhat speeds are people actually getting?
Gigabit reaches 90% of Welwyn Garden City, Welwyn Hatfield, and the fastest available is 1,000 Mbps. The full split by band is below.
Which broadband networks reach Welwyn Garden City, Welwyn Hatfield?
The wholesale networks carrying Welwyn Garden City, Welwyn Hatfield broadband, from Openreach to Virgin Media and the altnets, read off the live deals.
Full-fibre altnets that have rolled out in Welwyn Garden City, Welwyn Hatfield. 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, Vodafone
- 4th Utility: 4th Utility, Rise Fibre
Then there's Openreach and Virgin Media O2 (Openreach is laid to virtually every UK address).
Right now 19 providers are running deals to addresses in Welwyn Garden City, Welwyn Hatfield.
What broadband coverage does Welwyn Garden City, Welwyn Hatfield have?
Superfast broadband reaches 97% of Welwyn Garden City, Welwyn Hatfield premises but gigabit only 90%, so around 7% of homes can get fast broadband but not the fastest.
Can I rely on mobile broadband in Welwyn Garden City, Welwyn Hatfield?
Outdoor 5G reaches 100% of Welwyn Garden City, Welwyn Hatfield homes. Here is how mobile holds up if the line drops.
5G & 4G home broadband
Outdoor 5G covers 100% of Welwyn Garden City, Welwyn Hatfield, enough for a 5G home-broadband hub to stand in for a fixed line.
More areas in Welwyn Hatfield
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 Welwyn Garden City, Welwyn Hatfieldcome 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.