17 providers offer 233 broadband deals in Berkhamsted Castle, from £18 a month (£25 after 12 months) and up to 1,600 Mbps. Typical measured speed is 81 Mbps down and 17 Mbps up, 20% below the UK download average. Full fibre is available to 63.9% of homes.
Deals for Berkhamsted Castle (HP4), checked and refreshed daily.
Best value broadband deal in Berkhamsted Castle (HP4)
The best value in Berkhamsted Castle (HP4) on full first-year cost is 4th Utility's 100Mbps Full Fibre (24 Months): £222 across year one, about £19 a month. 100 Mbps covers streaming, video calls and working from home.
Best value in Berkhamsted Castle (HP4)
£18.50/mo
No rises, no surprises.
Cheapest broadband deal in Berkhamsted Castle (HP4)
The cheapest deal in Berkhamsted Castle (HP4) is 50Mbps Full Fibre (24 Months) from 4th Utility at £18.00 a month for 50 Mbps. It's full fibre, so the advertised speed is the speed that reaches the router. The £18.00 is an intro price that rises to £25.00 a month after the intro window, making the real first-year cost £216. Well below the UK average, which shows on a busy evening.
Cheapest in Berkhamsted Castle (HP4)
£18/mo
for 12 months, then £25/mo
Fastest broadband deal in Berkhamsted Castle (HP4)
The fastest deal available in Berkhamsted Castle (HP4) is Full Fibre 1.6GB from EE at 1,600 Mbps. Zen Internet matches it at the same top speed.
Fastest in Berkhamsted Castle (HP4)
£33.99/mo
rises to £37.99 in March 2027 (+£4)
Runner-up on speed
£45/mo
No rises, no surprises.
Compare broadband deals in Berkhamsted Castle (HP4)
£22.99/mo
rises to £26.99 in March 2027 (+£4)
£23/mo
rises to £25 in April 2027 (+£2)
£23/mo
No rises, no surprises.
£23.99/mo
rises to £27.99 in March 2027 (+£4)
Broadband providers in Berkhamsted Castle (HP4)
17 providers serve Berkhamsted Castle (HP4) including Virgin Media, Sky and BT, with EE the fastest at 1,600 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 Berkhamsted Castle (HP4) download speed at 81 Mbps.
Upgrade nudge
Room to upgrade in Berkhamsted Castle (HP4)
Only 12% of the 7,900 connections here are on 300Mbps or faster, even though 64% 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 Berkhamsted Castle (HP4) line runs 81 Mbps.
Working from home
OKStreaming and family use
GoodWhat speeds are people actually getting?
Gigabit reaches 64% of Berkhamsted Castle (HP4), and the fastest available is 1,000 Mbps. The full split by band is below.
What broadband coverage does Berkhamsted Castle (HP4) have?
Superfast broadband reaches 96% of Berkhamsted Castle (HP4) premises but gigabit only 64%, so around 32% of homes can get fast broadband but not the fastest.
Can I rely on mobile broadband in Berkhamsted Castle (HP4)?
Outdoor 5G reaches 99% of Berkhamsted Castle (HP4) 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 99% of Berkhamsted Castle (HP4), enough for a 5G home-broadband hub to stand in for a fixed line.
How Berkhamsted Castle (HP4) compares within Dacorum
Across 6 postcode districts in Dacorum, by connection count, typical speed and gigabit coverage.
Nearby areas
Frequently asked questions
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Speed and coverage figures for Berkhamsted Castle (HP4)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.