BT Speed Test - Check Your BT Broadband Speed UK

BT is the United Kingdom's largest broadband provider with 9.2 million customers and 28% market share. BT offers FTTC and Full Fibre broadband using the Openreach network with speeds from 36 Mbps to 900 Mbps. Test your BT connection to measure actual download, upload, and latency performance.

About BT

BT (British Telecommunications) was founded in 1846 and is headquartered in London. As the UK's largest communications company, BT operates the Openreach network infrastructure that connects most UK homes. BT Consumer serves 9.2 million broadband customers and operates the EE mobile network with 34 million subscribers.

The company offers broadband via FTTC (fiber to the cabinet) and FTTP (full fiber to the premises) with coverage expanding to 25 million premises by 2026. BT also provides BT Sport, landline, and mobile services.

BT Plans and Services

BT offers several internet plans across different technologies and price points.

BT broadband plans range from £28.99 to £59.99 per month. Fibre Essential offers 36 Mbps at £28.99, Fibre 1 provides 50 Mbps at £32.99, and Fibre 2 delivers 74 Mbps at £35.99. Full Fibre plans include 150 Mbps at £39.99, 500 Mbps at £49.99, and 900 Mbps at £59.99.

All plans include a Smart Hub 2 router and unlimited data. BT Complete WiFi mesh system available for £10 per month. BT TV and Sport packages can be added to bundles.

BT Internet Plans

Plan	Speed	Price	Features
Fibre Essential fiber	36 Mbps	£28.99/month	36 Mbps average download FTTC connection Smart Hub 2 router
Fibre 1 fiber	50 Mbps	£32.99/month	50 Mbps average download FTTC connection Stay Fast Guarantee
Fibre 2 fiber	74 Mbps	£35.99/month	74 Mbps average download FTTC with vectoring Stay Fast Guarantee
Full Fibre 100 fiber	150 Mbps	£39.99/month	150 Mbps download, 30 Mbps upload FTTP full fiber Smart Hub 2 router
Full Fibre 500 fiber	500 Mbps	£49.99/month	500 Mbps download, 75 Mbps upload FTTP full fiber WiFi 6 router included
Full Fibre 900 fiber	900 Mbps	£59.99/month	900 Mbps download, 110 Mbps upload FTTP full fiber WiFi 6 router included

Prices and availability may vary by location. Contact BT for current offers.

BT Coverage by Region

BT performance varies by location. Coverage density, local infrastructure, and network congestion affect speeds in each market.

London and Major Cities (Manchester, Birmingham, Leeds, Glasgow, Edinburgh)

Coverage: Extensive Full Fibre coverage (60-80% of premises) with Openreach priority rollout Typical: 850-900 Mbps on Full Fibre 900, 480-500 Mbps on Full Fibre 500, 140-150 Mbps on Full Fibre 100 Peak congestion: Minimal congestion since FTTP provides dedicated fiber bandwidth (unlike Virgin Media shared cable)

London leads UK Full Fibre rollout with 80% premises coverage (6.4M of 8M households). Inner London boroughs (Westminster, Camden, Islington) have 90%+ Full Fibre available. Outer London and suburbs at 60-70% coverage. Manchester, Birmingham, Leeds have 65-75% Full Fibre coverage. Full Fibre delivers consistent 850-900 Mbps at all hours with no peak-hour slowdown. Upload speeds 100-110 Mbps significantly better than Virgin Media cable (52 Mbps) making BT superior for remote work, video calls, cloud backups. Latency 8-12ms typical vs 15-25ms Virgin Media. BT Sport and BT TV bundles popular in cities. Stay Fast Guarantee ensures minimum 80% of advertised speed or £20/month compensation.

Suburban Areas (Home Counties, Greater Manchester, West Midlands suburbs)

Coverage: Mixed Full Fibre (40-60%) and FTTC (remainder) with ongoing Openreach rollout Typical: 850-900 Mbps Full Fibre where available, 65-74 Mbps Fibre 2 FTTC, 45-50 Mbps Fibre 1 FTTC Peak congestion: No congestion on Full Fibre. FTTC can see 5-10% slowdown during peak hours in dense areas

Suburban areas experiencing rapid Full Fibre expansion - Openreach adding 1M+ premises per quarter. Home Counties (Surrey, Berkshire, Hertfordshire, Essex) at 50-60% Full Fibre coverage. FTTC still dominant in suburbs (60% of connections) using copper from street cabinet to home. FTTC speeds depend on distance from cabinet: within 200m = 74 Mbps typical, 200-500m = 60-70 Mbps, 500-1000m = 45-60 Mbps, 1000m+ = 36-50 Mbps. Upload speeds on FTTC limited to 18-20 Mbps maximum (vs 100+ Mbps on Full Fibre). Full Fibre rollout prioritizes high-density suburban areas first, then radiates outward. Check BT.com availability checker - Full Fibre may become available mid-contract allowing free upgrade.

Market Towns and Small Cities (Population 20K-100K)

Coverage: Full Fibre expanding (20-40% coverage), FTTC widespread (80%+ coverage) Typical: 850-900 Mbps Full Fibre in covered areas, 50-74 Mbps FTTC typical Peak congestion: Minimal - lower population density reduces network load

Market towns (Reading, Cambridge, Oxford, Bath, York, Canterbury) receiving Full Fibre rollout 2024-2026 as part of Openreach's 25M premises target. Currently 20-40% Full Fibre penetration, accelerating quarterly. FTTC provides reliable 50-74 Mbps for most households. Smaller cities (Norwich, Exeter, Lincoln, Inverness) have 15-30% Full Fibre coverage. Openreach prioritizes commercial centers and newer housing estates first. Legacy copper broadband (ADSL 10-20 Mbps) still exists in 5-10% of market town premises pending FTTC/FTTP upgrade. BT offers faster upgrade timelines in these areas than Virgin Media which has limited cable footprint outside major cities.

Rural Areas and Villages (Scotland Highlands, Wales, Southwest England, East Anglia)

Coverage: Limited Full Fibre (<15%), FTTC in larger villages, ADSL in remote areas Typical: 850-900 Mbps Full Fibre where available (very limited), 36-67 Mbps FTTC, 10-24 Mbps ADSL Peak congestion: Variable - FTTC minimal congestion, ADSL can be unreliable during weather events

Rural broadband UK's weakest area. Openreach Full Fibre rollout reaches only 5-15% of rural premises due to high deployment costs (£1,500-3,000 per property vs £500-700 urban). FTTC coverage 60-70% in larger villages but speeds degrade significantly beyond 1km from cabinet (typical 36-50 Mbps, can drop to 25-36 Mbps at distance). ADSL copper lines still serve 20-30% of rural premises with 10-24 Mbps speeds (unusable for modern streaming, video calls). Scotland Highlands, Welsh valleys, Devon/Cornwall rural areas most affected. UK Government R100 (Reaching 100%) program subsidizing Openreach rural Full Fibre expansion but completion not until 2027-2030. Rural customers often have no choice - BT only provider or limited to BT vs slow satellite (20-50 Mbps). Community Fiber projects emerging in some villages (Gigaclear, CityFibre) offering alternative to BT.

Northern Ireland

Coverage: Openreach operates separately, Full Fibre rollout slower than GB mainland Typical: 850-900 Mbps Full Fibre in Belfast and Derry (25% coverage), 50-74 Mbps FTTC elsewhere Peak congestion: Minimal across region due to lower population density

Northern Ireland lags GB Full Fibre rollout - only 25% premises covered vs 40% GB average. Belfast has decent 40% Full Fibre coverage, Derry 30%. Rural NI heavily dependent on FTTC (60%) and ADSL (15%). Openreach NI receiving £165M UK Government subsidy 2024-2027 to accelerate Full Fibre to 500K premises. Virgin Media cable unavailable in most of NI (only parts of Belfast, Derry). BT effectively monopoly in many areas alongside Sky/TalkTalk reselling BT/Openreach infrastructure. Full Fibre expansion targeting 70% NI coverage by 2028.

Is BT Right for You?

Every provider has trade-offs. Here is how BT performs based on real-world usage and customer feedback.

Strengths

UK's largest broadband provider (9.2M customers, 28% market share) with strong brand reputation and established infrastructure
Full Fibre FTTP offers dedicated bandwidth with no peak-hour slowdown unlike Virgin Media shared cable - consistent 850-900 Mbps at all hours
Upload speeds on Full Fibre (100-110 Mbps) double Virgin Media (52 Mbps) - critical for remote work, video calls, cloud backups, content creators
Lower latency (8-12ms Full Fibre) vs Virgin Media cable (15-25ms) - better for gaming, video calls, real-time applications
Unlimited data on all plans with no caps or fair usage policies - stream and download freely without overage concerns
Stay Fast Guarantee on FTTC plans - if speeds fall below 80% of advertised minimum, receive £20/month compensation until fixed
Smart Hub 2 router included (WiFi 6 capable) with no rental fees - Virgin Media charges £5/month hub rental on some plans
BT Complete WiFi mesh system (£10/month) with guaranteed coverage or money back - eliminates dead zones in larger homes
Owns Openreach infrastructure - faster fault resolution and installation appointments than resellers (Sky, TalkTalk) using same network
BT Sport included with some bundles - Premier League, UEFA Champions League, UFC, exclusive sports content worth £25/month

Weaknesses

Higher pricing than Virgin Media and resellers - BT Full Fibre 900 £59.99/month vs Virgin Gig1 £45-50/month, vs Sky Full Fibre 900 £48/month
18-24 month minimum contracts with £5-15/month price increase after initial period - budget-conscious users locked into rising costs
Installation wait times 2-4 weeks for Full Fibre (engineer required for FTTP) vs activate-within-24-hours for FTTC upgrades
Customer service quality variable - 15-25 minute phone wait times during peak hours, outsourced call centers, mixed resolution effectiveness
Full Fibre upload speeds (100-110 Mbps on 900 Mbps tier) lag true symmetrical fiber like Hyperoptic (900/900) or CityFibre (900/900)
Slower speeds than Virgin Media Gig1 for downloads - BT 900 Mbps vs Virgin 1,130 Mbps, noticeable for large file downloads
FTTC plans (Fibre 1/2) have slow 15-20 Mbps uploads inadequate for heavy video conferencing or content upload - Full Fibre required for >30 Mbps uploads
BT TV interface dated compared to Sky Q or Virgin V6 - limited 4K content, slower UI, fewer streaming app integrations
Rural coverage limited - 30% of rural premises stuck on ADSL 10-24 Mbps with no Full Fibre timeline or slow 2027-2030 upgrade path

Best For

Households requiring reliable fast uploads (100+ Mbps) for remote work, video conferencing, cloud backups, YouTube/Twitch streaming
Gamers prioritizing low latency (8-12ms Full Fibre) over maximum download speed - BT better than Virgin Media for competitive gaming
London and major city residents with Full Fibre availability seeking consistent gigabit speeds without peak-hour slowdown
Customers valuing UK-based brand with established infrastructure and track record over new entrants or smaller alt-nets
Sports fans wanting BT Sport inclusion (Premier League, Champions League, UFC) bundled with broadband saving £20-30/month vs standalone
Existing BT Mobile/EE customers who can bundle for 10-15% multi-product discount (Halo packages)
Homes >2,500 sq ft needing Complete WiFi mesh guarantee for whole-home coverage with professional installation
Users willing to pay £5-15/month premium over Virgin Media for superior upload speeds and dedicated FTTP bandwidth

Not Ideal For

Budget-conscious users - Virgin Media and Sky reseller packages £10-20/month cheaper for similar speeds (£45-50 vs £59.99 for gig tier)
Households prioritizing maximum download speed over upload - Virgin Gig1 (1,130 Mbps) faster than BT 900 for large downloads, torrents, game libraries
Rural areas without Full Fibre coverage - stuck on slow FTTC 36-50 Mbps or ADSL 10-24 Mbps for years until Openreach expansion reaches area
Customers outside 18-24 month commitment window - no monthly rolling contracts available, early termination fees £5-15/month × months remaining
Users in Virgin Media cable areas seeking best value gigabit - Virgin £45-50 vs BT £59.99, Virgin faster downloads (1,130 vs 900) despite slower uploads

How BT Compares

Side-by-side comparison of BT against major competitors in United Kingdom.

Competitor	Speed	Price	Coverage	Verdict
Virgin Media	Virgin Media Gig1: 1,130/52 Mbps. BT Full Fibre 900: 900/110 Mbps. Virgin 25% faster downloads, BT 110% faster uploads. Virgin uses shared DOCSIS 3.1 cable causing 10-30% slowdown during peak hours (7-11 PM). BT uses dedicated FTTP with consistent speeds all hours. For heavy downloaders (gaming, torrents), Virgin better. For content creators and remote workers (uploads critical), BT better.	Virgin Gig1 £45-50/month after 18 months. BT Full Fibre 900 £59.99/month. Virgin 18-25% cheaper. Both have 18-month contracts with £5-10/month increases after initial period. Virgin charges £5/month hub rental on some plans, BT includes Smart Hub 2 free. Total cost of ownership: Virgin £810-900/18 months, BT £1,080/18 months.	BT Full Fibre: 12M premises (40% UK). Virgin cable: 15.5M premises (52% UK). Virgin has broader coverage in England but limited Scotland/Wales/NI. Where both available, choose based on upload vs download priority. Many areas have only one option.	Choose Virgin Media if you prioritize download speeds and lower pricing (£45-50 gig). Choose BT if you need fast uploads (100+ Mbps) for remote work, gaming with low latency, or consistent speeds during peak hours. Virgin best value for casual users, BT best for power users and remote workers.
Sky Broadband	Identical speeds - both use Openreach FTTP/FTTC infrastructure. Sky Full Fibre 900: 900/115 Mbps. BT Full Fibre 900: 900/110 Mbps. Same network, same performance. Sky cannot offer better speeds than BT since they're reselling BT's infrastructure.	Sky Full Fibre 900 £48/month. BT Full Fibre 900 £59.99/month. Sky 20% cheaper (£12/month savings = £216/18 months). Sky uses aggressive promotional pricing to compete against BT. Both increase £5-10/month after 18 months.	Both use Openreach infrastructure, so coverage is identical. BT and Sky available wherever Openreach FTTP or FTTC is deployed (32M+ premises, 96% UK). No coverage difference between the two providers.	Choose Sky if price-conscious and want £200+ savings over 18 months with acceptable 3-5 day fault resolution. Choose BT if you value faster customer service (24-48 hours), priority support, or want BT Sport bundled. For budget users, Sky better value. For premium service, BT worth the premium.
Talk Talk	Identical to BT/Sky - all use Openreach FTTP. TalkTalk Full Fibre 900: 900/115 Mbps, same as BT 900/110.	TalkTalk Full Fibre 900 £35-40/month vs BT £59.99. TalkTalk 40% cheaper (£20-25/month savings = £360-450/18 months). TalkTalk achieves low prices through minimal customer service investment and high churn tolerance.	Both use Openreach infrastructure, so coverage is identical. BT and TalkTalk available wherever Openreach FTTP or FTTC is deployed (32M+ premises, 96% UK). TalkTalk also resells CityFibre in select areas, giving minor additional FTTP availability in some towns where Openreach FTTP not yet built.	Choose TalkTalk only if budget absolutely constrained and willing to tolerate poor customer service for £360-450/18 months savings. Choose BT (or Sky as middle ground) if you value responsive support or anticipate needing technical assistance. TalkTalk acceptable for tech-savvy users who can self-troubleshoot.
Hyperoptic Or City Fibre	Hyperoptic 1 Gig: 1000/1000 Mbps symmetrical. CityFibre 900: 900/900 Mbps. BT Full Fibre 900: 900/110 Mbps. Alt-nets offer 8-9x faster uploads than BT - massive advantage for content creators, remote workers. Download speeds similar. Alt-nets built newer infrastructure with symmetrical design from start.	Hyperoptic 1 Gig £45/month, CityFibre 900 £43/month, Community Fibre 1 Gig £40/month vs BT £59.99. Alt-nets 25-33% cheaper for superior symmetrical speeds. Alt-nets competing on value vs incumbents.	Alt-nets cover 3-5M UK premises (10-15%) focused on urban apartments and new-build estates. BT Openreach covers 12M Full Fibre premises (40% UK) nationwide. Alt-nets very limited coverage but expanding. Where alt-nets available, usually superior option.	Choose Hyperoptic/CityFibre/Community Fibre if available at your address for symmetrical gigabit at lower cost than BT. Choose BT if alt-nets unavailable - BT has 3-4x broader Full Fibre footprint. Check availability first: most addresses have only BT or Virgin, <15% have alt-net access.

Troubleshooting BT Issues

Common BT connection problems and how to fix them.

FTTC Fibre 1 or Fibre 2 delivering 35-50 Mbps instead of advertised 50-74 Mbps, especially during evenings

Cause: Distance from street cabinet exceeds 500m (copper segment degradation) or line quality issues (aged copper, moisture, interference). FTTC uses fiber to cabinet then copper to home - copper quality determines speeds.

Check distance from cabinet using BT Wholesale checker (dslchecker.bt.com). Under 200m = 67-74 Mbps expected. 200-500m = 50-67 Mbps. 500-1000m = 36-55 Mbps. 1000m+ = 25-36 Mbps. If distance >800m, speeds naturally limited by physics.
Contact BT to report slow speeds and invoke Stay Fast Guarantee (available on Fibre 1/2). If speeds below 80% of minimum guarantee, BT must investigate and compensate £20/month until fixed.
Request Openreach engineer visit to check line quality (free if fault found). Engineer can identify moisture in joints, corroded connections, aluminum cable (older, slower than copper), or interference from electrical sources.
Upgrade to Full Fibre FTTP if available at address - eliminates copper segment entirely. Check BT availability checker. Full Fibre rollout expanding 1M+ premises per quarter - may become available mid-contract with free upgrade option.
If Full Fibre unavailable and FTTC speeds inadequate, consider Virgin Media cable (if available) or 4G/5G home broadband (EE Home Broadband uses 4G/5G, same parent company as BT).

FTTC upload speeds 15-20 Mbps causing lag during video calls, slow cloud backups, difficulty sharing large files for remote work

Cause: FTTC inherently asymmetrical - uses 80% of bandwidth for downloads, 20% for uploads. FTTC maximum upload 20 Mbps due to VDSL2 technology limitations. Full Fibre required for fast uploads.

Upgrade to BT Full Fibre 100 (30 Mbps upload), Full Fibre 500 (75 Mbps upload), or Full Fibre 900 (110 Mbps upload). Check availability at BT.com. If available, upgrade costs £10-30/month more but solves upload bottleneck permanently.
If Full Fibre unavailable, switch to Virgin Media cable (52 Mbps upload on Gig1) for 2-3x faster uploads than BT FTTC, or alt-nets (Hyperoptic 900/900 symmetrical) if available.
Optimize video call settings - reduce resolution from 1080p to 720p (saves 50% upload bandwidth), disable virtual backgrounds (saves 20-30%), turn off camera when speaking not required.
Schedule large cloud backups (photos, videos, documents) for overnight 2-6 AM when not using internet for work. 15-20 Mbps upload can transfer 6-9 GB overnight (8 hours).
Use ethernet connection to Smart Hub (not WiFi) to ensure full 15-20 Mbps upload available. WiFi overhead reduces practical upload to 10-15 Mbps. Ethernet eliminates this loss.

BT website shows Full Fibre 'coming soon' but no installation date or 'check back later' message. Uncertain when Full Fibre will actually be available.

Cause: Openreach Full Fibre rollout occurs in phases - Planning → Build → Testing → Go Live. 'Coming soon' indicates Planning or Build phase. Actual availability 3-12 months depending on phase progress.

Check Openreach website (openreach.com/fibre-checker) for more detailed rollout status by postcode. Openreach provides quarter-level estimates (Q1 2026, Q2 2026, etc.) more specific than BT's generic 'coming soon'.
Sign up for BT Full Fibre availability alerts at BT.com - receive email when Full Fibre goes live at your address. Allows immediate upgrade booking.
Monitor Openreach social media (Twitter @OpenreachNews) for local rollout announcements - often posts '500 premises in [Town] now live with Full Fibre' updates.
Consider Virgin Media if available and unwilling to wait 6-12 months for BT Full Fibre. Virgin cable available in 52% of UK premises with gigabit speeds now vs waiting for BT.
If already on BT FTTC contract, ask customer service about free mid-contract upgrade to Full Fibre when available. BT offers contract renegotiation without penalty when Full Fibre goes live at existing customer addresses.

WiFi signal weak or disconnects in bedrooms, upstairs, or far corners of home despite Smart Hub 2

Cause: Smart Hub 2 single router has limited range (1,500-2,000 sq ft optimal). Larger homes, thick walls, multiple floors, or building materials (brick, concrete, metal) block WiFi signal 40-70%.

Add BT Complete WiFi mesh system (£10/month or £150 purchase) - includes 1-3 WiFi discs that extend coverage to 3,000-5,000 sq ft. BT guarantees coverage in every room or money back. Discs connect wirelessly to Smart Hub, no ethernet required.
Reposition Smart Hub centrally in home (middle floor, middle room) elevated on shelf away from walls, metal objects, or thick furniture. Moving hub 10-15 feet can improve coverage 30-50%.
Use ethernet cable to connect stationary devices (desktop PC, smart TV, gaming console) freeing WiFi bandwidth for mobile devices. Smart Hub 2 has 4 ethernet ports.
Change WiFi channel via Smart Hub Manager (home.bt.com) - scan for least congested channel. UK WiFi crowded in apartments/terraced housing with 15-25 neighboring networks. Channels 1, 6, 11 (2.4 GHz) or 36, 40, 44, 48 (5 GHz) least congested.
For very large homes (4,000+ sq ft) or problematic construction, consider professional WiFi survey (£200-400 via BT Business) to identify optimal access point placement and dead zone causes.

BT History

Key milestones in BT development and network expansion.

1846

Electric Telegraph Company founded, predecessor to BT - world's first national telecommunications provider

1912

General Post Office (GPO) nationalizes UK telecommunications, creating public monopoly

1980

British Telecommunications separated from GPO as state-owned corporation ahead of privatization

1984

BT privatized by Margaret Thatcher government, shares sold to public - first major UK utility privatization

2000

BT Openreach created as separate division managing UK broadband infrastructure to allow competitor access

2006

Launched BT Infinity FTTC (fiber to cabinet) delivering 40-76 Mbps using VDSL2 technology over final copper segment

2016

Acquired EE mobile network for £12.5 billion, becoming UK's only quad-play provider (broadband, TV, landline, mobile)

2020

Announced £15 billion Full Fibre rollout targeting 25 million premises by 2026 - largest UK FTTP investment

2023

Reached 10 million Full Fibre premises passed (40% of target), overtaking Virgin Media for gigabit coverage

2025

Serving 9.2 million broadband customers (28% UK market share) with 12 million Full Fibre premises available

Mobile Data Settings

Need to configure your BT mobile data? View the complete APN settings for Android and iOS devices.

View BT APN Settings

Test Your BT Speed

Run a free speed test to check if BT delivers the speeds you are paying for. Test during peak evening hours for the most realistic results. Compare your results against BT advertised speeds above.

BT Speed Test FAQ

How fast is BT internet?

BT offers broadband speeds from 36 Mbps to 900 Mbps depending on your plan and connection type. FTTC (Fibre 1/2) delivers 50-74 Mbps download, while Full Fibre FTTP plans reach 150-900 Mbps. Upload speeds on Full Fibre range from 30-110 Mbps. Actual speeds depend on your distance from the cabinet for FTTC or your FTTP connection quality. Run a speed test to verify your actual BT performance.

What is BT Full Fibre?

BT Full Fibre is fiber-to-the-premises (FTTP) broadband delivering speeds up to 900 Mbps. Unlike FTTC which uses copper from the cabinet to your home, Full Fibre runs fiber optic cable directly to your property. This provides faster, more reliable speeds with lower latency. Full Fibre is available to approximately 12 million UK premises as of 2026, with BT targeting 25 million by end of 2026.

How do I test my BT speed?

Use the speed test tool on this page to measure your BT download speed, upload speed, and ping latency. For accurate results, connect your computer directly to the Smart Hub via ethernet cable. Close background applications and test at different times since speeds may vary during peak hours between 7pm and 11pm. The test takes approximately 30 seconds to complete.

Is BT faster than Virgin Media?

BT Full Fibre 900 offers 900 Mbps download versus Virgin Media Gig1 at 1,130 Mbps. However, BT Full Fibre typically has better upload speeds (110 Mbps vs 52 Mbps) and lower latency since FTTP is dedicated bandwidth. Virgin Media uses shared cable (DOCSIS 3.1) which can slow during peak hours. Choose based on availability and whether you prioritize download speed or upload and latency performance.

What is the difference between BT FTTC and Full Fibre?

FTTC (Fiber to the Cabinet) runs fiber to a street cabinet, then copper cable to your home, delivering 36-74 Mbps with 15-20 Mbps upload. Full Fibre (FTTP) runs fiber optic cable directly to your property, delivering 150-900 Mbps with 30-110 Mbps upload. Full Fibre is faster, more reliable, has lower latency (8-12ms vs 15-25ms), and doesn't degrade with distance from cabinet. Full Fibre costs £10-30/month more but provides 4-12x faster speeds, especially uploads.

Does BT have data caps?

No, all BT broadband plans include unlimited data with no caps or fair usage policies. Stream, download, and upload as much as you want without worrying about overage fees or throttling. This applies to both FTTC and Full Fibre plans from Fibre Essential (36 Mbps) to Full Fibre 900. BT removed all data caps in 2014 to compete with Virgin Media and other unlimited providers.

How much does BT broadband cost after the contract ends?

BT broadband increases £5-10/month after the initial 18-24 month contract period. Full Fibre 900 typically goes from £59.99 to £64.99-69.99/month. Fibre 2 from £35.99 to £40.99-45.99/month. To avoid increases, call BT retentions (0800 800 150, say 'thinking of leaving') 1-2 months before contract ends to negotiate new promotional pricing. BT offers retention discounts (£10-20/month off) to prevent switching to Virgin Media or Sky.

Is BT cheaper than Sky for the same speeds?

No, Sky is 15-20% cheaper than BT for identical speeds since both use Openreach infrastructure. Sky Full Fibre 900 costs £48/month vs BT £59.99/month (£12/month = £216/18 months savings). However, BT offers faster customer service and fault resolution (24-48 hours vs Sky 3-5 days) due to owning Openreach. Choose Sky for budget, BT for premium service quality.

How long does BT installation take?

FTTC installation takes 1-3 days from order (often activate existing line remotely without engineer visit). Full Fibre FTTP installation requires engineer visit and takes 2-4 weeks to schedule, with 2-4 hour installation appointment. Engineer runs fiber optic cable from street to home, installs ONT (optical network terminal), connects Smart Hub, and tests speeds. Self-install option available for FTTC upgrades (£0 vs £60-80 engineer install fee).

Can I use my own router with BT?

Yes, BT allows using your own router with Full Fibre or FTTC. For Full Fibre, connect router to the ONT (white box) via ethernet instead of Smart Hub. For FTTC, replace Smart Hub with your router connected to phone line. Compatible routers include Asus, Netgear, TP-Link with VDSL2 modem (FTTC) or gigabit ethernet WAN (Full Fibre). Using own router saves £0 (BT includes Smart Hub free, no rental fee) but allows advanced features (VPN, parental controls, QoS).

What is BT Stay Fast Guarantee?

BT Stay Fast Guarantee applies to Fibre 1 and Fibre 2 FTTC plans. BT guarantees minimum speeds (Fibre 1: 29 Mbps, Fibre 2: 52 Mbps). If speeds fall below 80% of guaranteed minimum for 3+ consecutive days, BT must investigate and fix the issue. While issue persists, you receive £20/month compensation automatically applied to bill. If BT cannot fix within 30 days, you can exit contract without early termination fees.

Why is my BT upload speed so slow?

BT FTTC (Fibre 1/2) has maximum 15-20 Mbps upload due to VDSL2 technology limitations - inherently asymmetrical. For fast uploads (30+ Mbps), upgrade to Full Fibre which offers 30-110 Mbps upload depending on tier (Full Fibre 100: 30 Mbps, Full Fibre 500: 75 Mbps, Full Fibre 900: 110 Mbps). Check availability at BT.com. If Full Fibre unavailable, consider Virgin Media (52 Mbps upload) or alt-nets like Hyperoptic (900/900 symmetrical) if available.

Is BT available in my area?

BT Openreach coverage reaches 98% of UK premises with at least FTTC (50-74 Mbps). Full Fibre FTTP is available to 40% of UK premises (12 million homes) as of 2026, expanding to 25 million (80% coverage) by end 2026. Check availability at BT.com/broadband by entering your postcode. Rural areas may only have ADSL (10-24 Mbps) or limited FTTC. Northern Ireland has slower Full Fibre rollout (25% coverage vs 40% GB).