Leased Lines London 2026 | Compare Prices, Providers & Installation Times Quick answer
In London in 2026 , leased line prices start from £90/month for basic 100 Mbps packages and range up to £1,000+ for 10 Gbps full-fibre connections. Top providers include BT Business, Virgin Media, TalkTalk Business, Vodafone, Colt, and Daisy Communications, all offering symmetrical speeds , 99.9% uptime , and dedicated business connectivity ideal for VoIP, cloud, and high-traffic offices.
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Authored by: Ally Cox (Business Technology & B2B Services Specialist 10+ Years’ Experience)
Reviewed by: James Ward (Telecoms Specialist, 12+ Years Experience)
Last Updated: January 2026
We’ve written all about leased lines, and you can read about our top providers here .
Contents:
London Leased Line Providers
Leased Line Costs in London
Installation Times for Leased Lines in London
Benefits of Leased Lines London
Leased Lines vs Fibre Optic Broadband
Installation Times for Leased Lines in London
Case Study: Herbal Hill Office Building
Leased Lines in London Conclusion
What Is a Leased Line? A leased line is a dedicated, private internet connection for your business, giving you guaranteed speeds , symmetrical bandwidth , and uncontended access (1:1 ratio). Y our connection is also not shared with other users, meaning you get no slowdowns during peak times, making it perfect for VoIP, large file transfers, remote access and much more!
Leased Lines London Providers
Leased Line Costs in London 2025
Speed Average Monthly Cost (£) Best For
100 Mbps £90 – £250 Small offices / SMEs
1 Gbps £250 – £600 Medium businesses & multi-site teams
10 Gbps £800 – £1,000+ Large enterprises, data-heavy industries
💡 Installation fees vary based on distance from fibre infrastructure- expect £0-£2,500 depending on ECCs (Excess Construction Charges).
Installation Times for Leased Lines in London Typical installation time: 30–90 days depending on:
Fibre availability in your postcode Permissions & wayleave approvals Need for civil works or duct access
💡 Wireless leased lines can be live within 5–10 days , ideal for businesses that need immediate connectivity.
Central areas (City, Canary Wharf, Westminster): usually faster due to existing fibre networks. Historic or residential zones (Soho, East/South London): may need permissions for cabling, increasing lead times.
Benefits of Leased Lines London Leased lines provide:
Symmetrical upload/download speeds which is perfect for VoIP, large data uploads, and streaming. No bandwidth sharing – performance stays consistent.Guaranteed uptime – backed by SLAs (99.9–100%). Scalable bandwidth – easily upgrade from 100 Mbps to 10 Gbps.Enhanced security – private connection, ideal for GDPR compliance.
Leased Lines vs. Fibre Optic Broadband: A Comparison for London Businesses
Feature Leased Line Fibre Broadband
Speed Up to 10 Gbps (symmetrical) Up to 1 Gbps (download only)
Bandwidth Dedicated (1:1 contention) Shared with others
Reliability 99.9% SLA uptime Best-effort
Security Private network Public network
Contract 12–36 months 12–24 months
Best For Business-critical use General office use
Case Study: Herbal Hill Office Building
Challenge: Highbridge Estates needed to modernise IT infrastructure to attract new tenants after a major downsizing.
Solution: Partnered with Modern Networks to install:
Centralised data centre with tenant-specific server racks. Upgraded metered electrical systems. Dedicated leased lines on each floor.
Result: Immediate high-speed connectivity for new tenants, increased property appeal, and reduced occupancy downtime.
FAQs About Leased Lines in London (2026) 1️⃣ How much does a leased line cost in London?
Prices start from £90/month for entry-level 100 Mbps and reach £1,000+ for 10 Gbps full-fibre business connectivity.
2️⃣ How long does installation take?
Typically 30–90 days . Central London sites with existing fibre are faster; heritage buildings may take longer.
3️⃣ Are leased lines faster than fibre broadband?
Yes! leased lines offer guaranteed symmetrical speeds , unlike broadband which slows at peak times.
4️⃣ Can I get a leased line for a small business in London?
Absolutely. Many providers (TalkTalk, Daisy, Colt) offer small-business packages starting under £200/month .
5️⃣ What affects leased line pricing?
Distance from the exchange Desired speed (100 Mbps – 10 Gbps)
Contract length (12–36 months) Extras like static IPs or managed routers
6️⃣ Is a leased line worth it for my London office?
If uptime, speed, and reliability directly impact productivity — yes. For lighter use, fibre broadband may be more cost-effective.
Our Thoughts on Leased Lines in London For London-based businesses requiring secure, consistent, and scalable internet , leased lines remain the gold standard in 2025. They offer guaranteed performance, uptime SLAs, and symmetrical speeds unmatched by traditional broadband.
We recommend researching all available options, comparing quotes from different providers in London, and considering your specific requirements before making a decision.
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Looking for high-speed, London leased lines? Our leased lines deliver unmatched performance and dedicated bandwidth tailored to your needsv so contact us now to learn more about our services or get a free, no-obligation quote in minutes. Let’s find the perfect solution for your business!
Leased Lines London – Other useful links about leased lines include: Hi, I’m Ally Cox , a senior copywriter and blogger at CompareYourBusinessCosts.co.uk, the UK’s trusted platform for comparing business services.over a decade of experience in the B2B sector, I specialise in simplifying complex topics like leased lines, VoIP, business energy, HR and payroll solutions, accounting software, and EPOS systems .HR, copywriting, and business operations- from clocking-in systems to card machines and office technology .informed, confident decisions when choosing products and services that improve efficiency and save money.