Is a Leased Line Faster Than Business Broadband?
A clear, direct answer to this question — written for UK business owners and IT decision-makers.
Direct Answer
A leased line provides dedicated, symmetrical speeds guaranteed to your business alone — typically 100Mbps to 10Gbps up and down. Business broadband shares capacity with other users, so speeds vary. For cloud-heavy businesses, VoIP users, or those with SLA requirements, a leased line's consistency matters more than peak speed. AMVIA recommends leased lines for businesses running mission-critical applications or handling high call volumes.
Key Points
What you need to know.
The Short Answer
Total FTTP coverage reached 79.5% of UK premises (approximately 26.7 million premises) in Q3 2025.
For UK Businesses
Gigabit-capable broadband now covers 87% of the UK, up from 84% in 2024 (Ofcom Connected Nations 2025).
Cost Considerations
Openreach is investing up to £15 billion to expand full fibre coverage to 25 million premises by December 2026.
Next Steps
Fixed leased line connections dominate the UK business internet market with a share exceeding 39%.
Quick Comparison
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Frequently Asked Questions
Business broadband is typically asymmetric — download speeds far exceed upload. But cloud applications, VoIP, video conferencing, and file sharing all depend on upload performance. UK broadband average download speed is 69.4 Mbps (Ofcom Connected Nations 2024), yet upload speeds on many connections are a fraction of that. A leased line provides identical upload and download speeds, which is why it outperforms broadband for cloud-dependent businesses.
Not necessarily faster peak speeds — FTTP can deliver up to 1Gbps download. The difference is consistency and symmetry. Broadband speeds fluctuate with contention, especially during peak hours, and upload is typically much slower than download. A leased line guarantees the full contracted speed in both directions at all times. A leased line typically delivers 99.99% uptime SLA (industry standard), whereas broadband carries no such guarantee.
Broadband suits offices with fewer than 15 users running standard cloud applications. Once you add VoIP telephony, regular video conferencing, large file transfers, or SLA-dependent services, a leased line becomes the better choice. The decision point is often around 15–20 concurrent users or when your business cannot tolerate variable speeds and occasional outages during the working day.
Related Questions
Leased Line vs Broadband
A full comparison of dedicated leased lines and business broadband on speed, reliability, and cost.
Leased Lines
AMVIA's managed leased line service — dedicated connectivity with SLA-backed uptime for UK businesses.
Business VoIP
VoIP call quality depends on consistent upload speeds — a leased line is the recommended foundation.
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