21 providers offer 339 broadband deals in Hertsmere, from £13.50 a month and up to 5,000 Mbps. Typical measured speed is 110 Mbps down and 20 Mbps up, 9% above the UK download average.
Best value broadband deal in Hertsmere
The best value in Hertsmere 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 Hertsmere
£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 Hertsmere
The fastest deal available in Hertsmere is 5 Gbps Premium Broadband (24m) from Community Fibre at 5,000 Mbps. Sky matches it at the same top speed.
Fastest in Hertsmere
5 Gbps Premium Broadband (24m)
5000 Mbps upload · Full Fibre
Best for power users & big households
£63/mo
rises to £66 in April 2027 (+£3)
Avg £65.25/mo over contract · £1566 total over 24 months
Runner-up on speed
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 Hertsmere
The cheapest deal in Hertsmere 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. Community Fibre is essentially level at £14.75 a month. Above the UK average on download.
Cheapest in Hertsmere
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
100 Mbps Fibre Broadband (24m)
100 Mbps upload · Full Fibre
Best for 2–3 person homes, 4K streaming
£14/mo
rises to £17 in April 2027 (+£3)
Avg £16.25/mo over contract · £390 total over 24 months
Compare broadband deals in Hertsmere
£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 Hertsmere
21 providers serve Hertsmere, with Community Fibre 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 Hertsmere download speed at 110 Mbps.
Upgrade nudge
Room to upgrade in Hertsmere
Only 18% of the 33,000 connections here are on 300Mbps or faster, even though 85% 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 Hertsmere line runs 110 Mbps.
Working from home
OKStreaming and family use
GoodWhat speeds are people actually getting?
Gigabit reaches 85% of Hertsmere, and the fastest available is 2,076 Mbps. The full split by band is below.
Which broadband networks reach Hertsmere?
The wholesale networks carrying Hertsmere broadband, from Openreach to Virgin Media and the altnets, read off the live deals.
Beyond Openreach, here are the alternative networks live in Hertsmere. Worth a look because, in the streets they cover, they tend to undercut the major brands.
- CityFibre: Sky, TalkTalk, The One Broadband, Vodafone, Zen Internet
- 4th Utility: 4th Utility, Rise Fibre
- Community Fibre
- Hyperoptic
Sitting alongside, Openreach and Virgin Media O2 cover Hertsmere as well (Openreach covers every UK premises bar a tiny remote tail).
There are 21 providers on the live deal list for Hertsmere.
What broadband coverage does Hertsmere have?
Superfast broadband reaches 96% of Hertsmere premises but gigabit only 85%, so around 11% of homes can get fast broadband but not the fastest.
Can I rely on mobile broadband in Hertsmere?
Outdoor 5G reaches 100% of Hertsmere homes. Here is how mobile holds up if the line drops.
5G & 4G home broadband
Outdoor 5G covers 100% of Hertsmere, enough for a 5G home-broadband hub to stand in for a fixed line.
Broadband speeds by Hertsmere neighbourhood
| Neighbourhood | Median | vs area | Upload | Superfast | Gigabit | 5G |
|---|---|---|---|---|---|---|
| Bushey WD23 | 115 | +5 | 21 | 98% | 90% | 100% |
| Borehamwood Brookmeadow WD6 | 108 | -2 | 19 | 96% | 85% | 100% |
| Aldenham WD7 | 108 | -2 | 22 | 95% | 74% | 100% |
| Northaw and Cuffley EN6 | 106 | -4 | 18 | 97% | 87% | 100% |
Measured Ofcom data per Hertsmere neighbourhood, ranked fastest first. Median and upload are in Mbps; vs area is the median difference from the Hertsmere average; superfast, gigabit and 5G are the % of premises covered. Swipe the table sideways for more columns.
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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 Hertsmerecome 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.