19 providers offer 297 broadband deals in Colnbrook, from £13.50 a month and up to 5,000 Mbps. Typical measured speed is 100 Mbps down and 17 Mbps up, in line with the UK download average.
Best value broadband deal in Colnbrook, Slough
The best value in Colnbrook, Slough 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 Colnbrook, Slough
£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 Colnbrook, Slough
The fastest deal available in Colnbrook, Slough is Full Fibre 5 Gigafast+ from Sky at 5,000 Mbps.
Fastest in Colnbrook, Slough
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 Colnbrook, Slough
The cheapest deal in Colnbrook, Slough is 150Mbps Full Fibre (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. Above the UK average on download.
Cheapest in Colnbrook, Slough
150Mbps Full Fibre (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
Compare broadband deals in Colnbrook, Slough
£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
150Mbps Full Fibre (24 Months)
150 Mbps upload · Full Fibre
Best for 2–3 person homes, 4K streaming
£18/mo
for 12 months, then £23/mo
Avg £20.50/mo over contract · £492 total over 24 months
Broadband providers in Colnbrook, Slough
19 providers serve Colnbrook, Slough, 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 Colnbrook, Slough download speed at 100 Mbps.
Upgrade nudge
Room to upgrade in Colnbrook, Slough
Only 16% are on 300Mbps or faster, even though 60% 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 Colnbrook, Slough line runs 100 Mbps.
Working from home
OKStreaming and family use
GoodWhat speeds are people actually getting?
Gigabit reaches 60% of Colnbrook, Slough, and the fastest available is 1,000 Mbps. The full split by band is below.
Which broadband networks reach Colnbrook, Slough?
The wholesale networks carrying Colnbrook, Slough broadband, from Openreach to Virgin Media and the altnets, read off the live deals.
Where Colnbrook, Slough has working altnets, the gigabit market suddenly looks competitive. Here are the ones that have built into the streets here.
- CityFibre: Sky, TalkTalk, The One Broadband, Vodafone, Zen Internet
- 4th Utility: 4th Utility, Rise Fibre
Layered on top, Openreach and Virgin Media O2 also reach this area (Openreach reaches every address that a postman can find).
Provider competition in Colnbrook, Slough: 19 providers actively in the market.
What broadband coverage does Colnbrook, Slough have?
Superfast broadband reaches 99% of Colnbrook, Slough premises but gigabit only 60%, so around 39% of homes can get fast broadband but not the fastest.
Can I rely on mobile broadband in Colnbrook, Slough?
Outdoor 5G reaches 100% of Colnbrook, Slough homes. Here is how mobile holds up if the line drops.
5G & 4G home broadband
Outdoor 5G covers 100% of Colnbrook, Slough, enough for a 5G home-broadband hub to stand in for a fixed line.
More areas in Slough
Nearby areas
Frequently asked questions
Ready to switch
See what's actually live in Colnbrook, Slough.
Enter your address and we'll show every deal you can genuinely order on your line, ranked by what you'll pay across the whole contract, not by who pays us.
* 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 Colnbrook, Sloughcome 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.