United Kingdom Slough

Broadband Providers in Slough

Broadband Providers available in Slough include Sky Broadband, Virgin Media, and BT. Slough's fastest provider is Spitfire, with a median speed of 108 Mbps. The most popular provider in Slough is Sky Broadband. The average broadband speed in Slough in 2022 is 73 Mbps, and the median speed locally is 38 Mbps.


Slough Broadband Statistics

Slough is among the top 10 for fibre access out of all major towns in the South East, and is among the top 100 best major towns in terms of fibre access across the UK as a whole. Our analysis of Ofcom coverage data shows that Gigabit fibre is available to 50% of residents. UltraFast 300+ Mbps is available to 93% of residents, while SuperFast 30+ Mbps broadband is available to 100% of Slough's households.

Great broadband infrastructure results in high speed test averages in Slough postcodes like SL1, SL2, SL3, and SL95. Over the past year, we’ve recorded a 37.52 Mbps median internet speed in Slough, which is 1.87% above the United Kingdom national median of 37 Mbps.

Slough increased access to Gigabit speeds by 49 percentage points in the past year. The buildout rate is also better than neighbouring major towns like Horsham (gained 46 percentate points), High Wycombe (gained 34 percentate points), and Reigate (gained 18 percentate points). In addition, real-world speed test data shows that Slough is dramatically outperformed by Colnbrook with Poyle (94% faster).

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Broadband Providers

+ View our methodology for ranking local providers
Most popular choice
Overall Performance
Customer Ratings
Sky Broadband Logo
58 /100
5.20 /10
Sky Broadband
About average
32,217 Speed Tests
883 reviews
Plans & Pricing
Overall Performance
Customer Ratings
Virgin Media Logo
69 /100
5.30 /10
Virgin Media
Above average
29,686 Speed Tests
1512 reviews
Plans & Pricing
Overall Performance
Customer Ratings
BT Logo
70 /100
6.0 /10
Above average
13,731 Speed Tests
778 reviews
Plans & Pricing
Overall Performance
Customer Ratings
No Logo
43 /100
7.10 /10
O2 Broadband
About average
Above Average
3,174 Speed Tests
82 reviews
Overall Performance
Customer Ratings
TalkTalk Logo
52 /100
5.10 /10
About average
3,019 Speed Tests
379 reviews
Plans & Pricing
Overall Performance
Customer Ratings
Plusnet Logo
54 /100
6.20 /10
About average
1,827 Speed Tests
442 reviews
Plans & Pricing
Overall Performance
Customer Ratings
Vodafone Logo
59 /100
5.50 /10
About average
1,113 Speed Tests
232 reviews
Plans & Pricing
Overall Performance
Customer Ratings
EE Logo
58 /100
6.60 /10
About average
Above Average
891 Speed Tests
396 reviews
Plans & Pricing
Overall Performance
Customer Ratings
Shell Energy Logo
35 /100
5.0 /10
Shell Energy
Below average
155 Speed Tests
55 reviews
Plans & Pricing
Overall Performance
Customer Ratings
No Logo
83 /100
7.10 /10
Independent Fibre Networks
Above average
Above Average
86 Speed Tests
4 reviews
Overall Performance
Customer Ratings
Zen Internet Logo
66 /100
9.90 /10
Zen Internet
Above average
Above Average
45 Speed Tests
69 reviews
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Broadband Network Infrastructure in Slough

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Tyler Cooper

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Ofcom Fibre Access Analysis for Slough

See the chart below for annual reporting on fibre build rates in the Slough area. Availability is based on population in postcodes marked as served by Ofcom Connected Nations reports, according to the most recent census.

 1,000+ Mbps300+ Mbps30+ Mbps

Map of Slough's Fibre Broadband Availability by Postcode

Gigabit Availability


of people living in Slough can obtain to 1,000+ Mbps broadband speeds

Ultrafast Speeds


of Slough residents can get 300+ Mbps internet service

Superfast 30+ Mbps Broadband


availability in Slough

Poor Broadband Speeds


of Slough is limited to broadband speeds under 30 Mbps

Slough Broadband Speeds Report

Average Broadband Speeds in Slough

YearSlough AverageUnited Kingdom AverageDifference
201820.84 Mbps26.27 Mbps20.67% Slower
201933.8 Mbps30.63 Mbps10.35% Faster
202057.45 Mbps80.31 Mbps28.46% Slower
202171.01 Mbps66.05 Mbps7.51% Faster

Slough Broadband Speed Distribution

 Percentage of Speed Tests in Speed Range
Internet Speed RangeSloughUnited Kingdom
Very Slow: under 10 Mbps26.44%19.92%
Slow: 10-30 Mbps26.71%25.74%
Adequate: 30-60 Mbps19.35%25.20%
Good: 60-80 Mbps9.09%10.20%
Fast: 80-300 Mbps14.69%15.33%
Very Fast: over 300 Mbps3.72%3.60%

How Slough Compares to Major Cities

City / TownMax SpeedTypical Speed RangeMedian 
Greater London5794.21 Mbps33.01—95.79 Mbps45.52 MbpsFaster
Birmingham941.32 Mbps29.29—106.99 Mbps38.46 MbpsFaster
Bristol943.13 Mbps30.33—109.89 Mbps42.25 MbpsFaster
Edinburgh874.24 Mbps29.94—107.43 Mbps38 MbpsFaster
Slough938.84 Mbps28.64—97.39 Mbps37.52 Mbps-
Liverpool1134.53 Mbps25.52—89.55 Mbps34.57 MbpsSlower
Nottingham2371.49 Mbps16.23—40.55 Mbps19.15 MbpsSlower
Sheffield932.42 Mbps23.71—68.77 Mbps32.05 MbpsSlower
Glasgow913.93 Mbps20.58—71.34 Mbps32.01 MbpsSlower
Leicester935.89 Mbps27.43—99.15 Mbps36.99 MbpsSlower

Slough Broadband Speeds Over Time

We class broadband speed distributions as follows: very slow under 10 Mbps; slow 10-30 Mbps; adequate 30-60 Mbps; good 60-80 Mbps; fast 80-300 Mbps; very fast over 300 Mbps.

How Slough Compares for Internet Speed in Slough

PositionCity / TownMax SpeedTypical Speed RangeMedian 
1Colnbrook with Poyle741.48 Mbps24.43—107.29 Mbps72.87 MbpsFaster
2Slough938.84 Mbps28.64—97.39 Mbps37.52 Mbps-

Slough Internet Speed Test Results

We analysed the results of people in Slough testing broadband providers multiple times, with each test starting no more than 30 minutes after the previous speed test. On average, people in Slough ran 4 internet speed tests per session. Looking at broadband download speeds, if the Slough resident's final test is 10% faster than their starting download speed, we count that as a succesful and faster speed test result. We count an unsuccessful, slower result if the final result is 10% slower than the starting result; we'd hope their ISP contacts them ASAP! For broadband speed tests that don't vary by that much, we consider the final result to be the same. For Slough's residents, of the internet speed tests we measured, 40.61% were fast, 27.74% slow, and 31.66% broadly the same.

Most Recent Tests

ProviderStart Time# TestsDurationStart SpeedEnd SpeedStatus
Virgin Media17 Jan 2022 23:30:54236 secs30.58 Mbps299.84 MbpsImproved
BT17 Jan 2022 22:01:18270 secs147.19 Mbps147.26 Mbps
Virgin Media17 Jan 2022 21:39:26237 secs27.62 Mbps30.54 MbpsImproved
Vodafone17 Jan 2022 20:26:50212 mins2.71 Mbps1.21 MbpsNeeds help, very slow
BT17 Jan 2022 19:41:44229 secs35.74 Mbps35.96 Mbps
BT17 Jan 2022 19:06:36233 secs142.68 Mbps29.47 MbpsNeeds help
Plusnet17 Jan 2022 18:40:28227 secs25.58 Mbps26.04 Mbps
BT17 Jan 2022 17:11:22765 mins22.9 Mbps35.05 MbpsImproved
BT17 Jan 2022 16:27:52412 mins20.43 Mbps15.87 MbpsNeeds help
Virgin Media17 Jan 2022 16:13:59355 secs124.38 Mbps185.02 MbpsImproved
Sky Broadband17 Jan 2022 15:34:00222 mins5.49 Mbps5.67 MbpsNeeds help, very slow
BT17 Jan 2022 15:45:1122 mins377.1 Mbps489.5 MbpsImproved
EE17 Jan 2022 15:13:56315 mins29.65 Mbps30.71 Mbps
Virgin Media17 Jan 2022 14:36:54423 mins273.83 Mbps202.05 MbpsNeeds help
BT17 Jan 2022 13:26:47964 mins10.24 Mbps26.49 MbpsImproved
BT17 Jan 2022 13:04:28659 mins448.71 Mbps188.16 MbpsNeeds help
BT17 Jan 2022 13:57:1643 mins67.15 Mbps66.41 Mbps
BT17 Jan 2022 13:56:5332 mins72.21 Mbps72.43 Mbps
Virgin Media17 Jan 2022 13:05:50230 mins27.79 Mbps375.01 MbpsImproved
Vodafone17 Jan 2022 13:20:2937 mins22.48 Mbps23.28 Mbps

Summary of Internet Service Providers in Slough

#Provider NameMax SpeedTypical Speed Range
1Virgin Media938.84 Mbps63.31—216.64 Mbps
2Spitfire193.37 Mbps66.21—167.67 Mbps
3BT913.25 Mbps28.91—77.11 Mbps
4Independent Fibre Networks238.36 Mbps39.47—78.22 Mbps
5CIX94.15 Mbps18.52—93.08 Mbps
6Gigaclear82.5 Mbps18.68—43.05 Mbps
7EE922.39 Mbps22.04—61.17 Mbps
8TalkTalk427.6 Mbps37.02—58.22 Mbps
9Vodafone468.71 Mbps24.66—60.24 Mbps
10Sky Broadband510.67 Mbps21.1—61.97 Mbps
11Zen Internet191.31 Mbps5.58—69 Mbps
12uno46.75 Mbps1.34—42.61 Mbps
13Plusnet74.61 Mbps7.77—35.58 Mbps
14FastNet16.46 Mbps0—16.38 Mbps
15Shell Energy54.95 Mbps5.82—27.36 Mbps
16O2 Broadband415.06 Mbps5.44—25.33 Mbps

Frequently Asked Questions about Internet Providers in Slough

How many broadband providers in Slough are there?

Slough has 16 ISPs tested by its 149,112 residents.

Who is the fastest broadband provider in Slough?

Spitfire is the fastest broadband provider in Slough with 193.37 Mbps, and an average internet speed range of 66.21—167.67 Mbps.

Who is the best internet provider in Slough?

The best internet provider in Slough is Virgin Media, and their users typically see broadband speeds in the range of 63.31 to 216.64 Mbps.

What is the average internet speed in Slough?

Users in Slough see an average internet speed of 28.64 up to 546 Mbps, and the fastest speed we've seen is 938.84 Mbps.

Is Sky Broadband available in Slough?

Broadband service from Sky Broadband is available in Slough, and the fastest speed we've seen from them is 510.67 Mbps.

Is Virgin Media available in Slough?

Broadband service from Virgin Media is available in Slough, and the fastest speed we've seen from them is 938.84 Mbps.

Is BT available in Slough?

Broadband service from BT is available in Slough, and the fastest speed we've seen from them is 913.25 Mbps.

Is BT full fibre available in Slough?

Yes, BT offers full fibre to the home (also called FTTH or FTTP) to 1498 of Slough's postcodes.

Who is the most popular broadband provider in Slough?

The broadband provider with the most users in Slough is Sky Broadband.

Author: Thomas Buck

Last Reviewed By: Tyler Cooper

Published: 10 Nov 2019

Last Updated: 17 Jan 2022

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