Full fibre reaches 90.3% of homes in Chalfont St Peter, though only 20% of connections run at 300 Mbps or faster. Typical measured speed is 121 Mbps down and 37 Mbps up, 20% above the UK download average. 16 providers offer 212 broadband deals, up to 1,600 Mbps.
Deals for Chalfont St Peter (SL9), checked and refreshed daily.
Best value broadband deal in Chalfont St Peter (SL9)
The best value in Chalfont St Peter (SL9) on full first-year cost is 4th Utility's 300Mb Full Fibre (24 Months): £240 across year one, about £20 a month. At 300 Mbps it copes with anything a household runs at once.
Best value in Chalfont St Peter (SL9)
£20/mo
for 12 months, then £40/mo
Cheapest broadband deal in Chalfont St Peter (SL9)
The cheapest deal in Chalfont St Peter (SL9) is Fibre 40 from Onestream at £18.50 a month for 40 Mbps. 4th Utility is essentially level at £20.00 a month. Well below the UK average, which shows on a busy evening.
Cheapest in Chalfont St Peter (SL9)
£18.50/mo
rises to £21.25 in April 2027 (+£2.75)
Runner-up on price
£20/mo
for 12 months, then £40/mo
Fastest broadband deal in Chalfont St Peter (SL9)
The fastest deal available in Chalfont St Peter (SL9) is Full Fibre 1.6GB from EE at 1,600 Mbps. Zen Internet matches it at the same top speed.
Fastest in Chalfont St Peter (SL9)
£38.99/mo
rises to £42.99 in March 2027 (+£4)
Runner-up on speed
£45/mo
No rises, no surprises.
Compare broadband deals in Chalfont St Peter (SL9)
£22.99/mo
rises to £26.99 in March 2027 (+£4)
£23/mo
rises to £25 in April 2027 (+£2)
£27.99/mo
rises to £31.99 in March 2027 (+£4)
£23/mo
No rises, no surprises.
Broadband providers in Chalfont St Peter (SL9)
16 providers serve Chalfont St Peter (SL9) 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 Chalfont St Peter (SL9) download speed at 121 Mbps.
Upgrade nudge
Room to upgrade in Chalfont St Peter (SL9)
Only 20% of the 6,000 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 Chalfont St Peter (SL9) line runs 121 Mbps.
Working from home
GreatStreaming and family use
GoodWhat speeds are people actually getting?
Gigabit reaches 90% of Chalfont St Peter (SL9), and the fastest available is 1,000 Mbps. The full split by band is below.
What broadband coverage does Chalfont St Peter (SL9) have?
Superfast broadband reaches 97% of Chalfont St Peter (SL9) 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 Chalfont St Peter (SL9)?
Outdoor 5G reaches 100% of Chalfont St Peter (SL9) 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 100% of Chalfont St Peter (SL9), enough for a 5G home-broadband hub to stand in for a fixed line.
How Chalfont St Peter (SL9) compares within Buckinghamshire
Across 25 postcode districts in Buckinghamshire, by connection count, typical speed and gigabit coverage.
Nearby areas
Frequently asked questions
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Speed and coverage figures for Chalfont St Peter (SL9)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.