A 100Gb leased line represents the highest tier of business connectivity currently available — delivering symmetrical speeds of 100 gigabits per second through a dedicated, uncontended line. It’s designed for enterprises that rely on continuous, high-volume data transfer, cloud computing, or real-time communications at scale.
But how much does a 100Gb leased line actually cost? In this guide, we’ll break down what you can expect to pay in 2025 and the factors influencing 100Gb leased line pricing.
What is a 100Gb Leased Line?
A 100Gb leased line is a private internet connection that offers guaranteed bandwidth, symmetrical upload and download speeds, and enterprise-grade performance. Unlike standard broadband, it’s not shared with other users — ensuring consistent, ultra-fast speeds at all times.
Average 100Gb Leased Line Pricing in 2025
100Gb leased line costs can vary significantly depending on your location, infrastructure availability, contract terms, and service level. Here’s a general estimate for UK businesses in 2025:
- Installation Fees: £0 – £5,000+ (often waived for longer contracts)
- Monthly Rental Costs: £2,800 – £7,000+
These figures apply to locations where fibre infrastructure is readily available. More remote or under-serviced areas may incur higher delivery fees.
Key Factors That Affect Pricing
- Location
Urban areas like London, Manchester, Birmingham, and Glasgow typically have better fibre coverage, which reduces installation costs. Rural or industrial zones may require bespoke installations, raising the total price. - Contract Length
Longer contracts (usually 3 to 5 years) often come with lower monthly costs and free setup. Shorter contracts may incur higher fees. - Bandwidth Commitment
Some providers offer flexible pricing based on how much of the 100Gb bandwidth you use. Committing to full capacity costs more but delivers maximum performance. - Service Level Agreements (SLAs)
Premium SLAs with guaranteed uptime, 24/7 support, and rapid fault resolution come at a higher cost — but provide peace of mind for critical operations. - Additional Features
Managed routers, security services, and traffic analytics can be bundled in or offered as optional extras.
Why Businesses Invest in 100Gb Leased Lines
High Bandwidth Demand
For businesses handling large volumes of cloud data, video conferencing, backups, or remote collaboration, a 100Gb connection ensures smooth, uninterrupted performance.
Cost-Effective at Scale
While the initial price may seem high, it’s more efficient than managing multiple lower-speed lines — and reduces costs associated with downtime and performance issues.
Future-Proofing
With technology advancing and data usage increasing, investing in a 100Gb line now means you won’t need a major infrastructure upgrade in a few years.
Better Security
Dedicated leased lines are inherently more secure than shared broadband, reducing the risk of data breaches or service interruptions.
Is It Worth It?
For small businesses or startups, 100Gb connectivity may be excessive. But for medium to large enterprises with heavy digital operations, the cost is justified by the performance and reliability benefits.
Sectors such as tech, finance, healthcare, media, education, and logistics often view it as a necessary investment — especially when downtime can result in lost revenue or service disruption.
Get an Accurate 100Gb Leased Line Quote
Prices vary by location and needs, so it’s essential to get a tailored quote for your business.
Request an instant quote today from Connect2 and find out exactly what a 100Gb leased line will cost your organisation in 2025.
