Understanding 2025 Leased Line Price for 100Mb, 1Gb, 10Gb, and 100Gb Speed in the UK
Choosing the right leased line for your business is like picking the perfect car – you need to balance speed, reliability, and cost. But unlike buying a car, most business owners find leased line price confusing and hard to compare. That’s why we’ve created this simple guide to help you understand what each speed tier costs and which one makes the most sense for your business.
2025 UK Leased Line Pricing Breakdown
Let’s break down the costs for each leased line, so you can see exactly what you’re paying for:
100Mb Leased Lines: The Starter Option
Monthly Cost Range: £63 – £175
A 100Mb leased line is perfect for small to medium businesses that need reliable internet but don’t require massive bandwidth. This speed can handle:
- 20-30 employees working simultaneously
- Basic cloud applications
- Video calls and file sharing
- Standard business operations
Real-World Example: A small accounting firm with 15 employees uses a 100Mb line to access cloud accounting software, send emails, and conduct client video calls. They pay around £120 per month and never experience slowdowns during busy periods.
1Gb Leased Lines: The Popular Choice
Monthly Cost Range: £175 – £350
1Gb leased line prices start from around £175 per month and represent the sweet spot for many growing businesses. This speed tier handles:
- 50-100 employees working comfortably
- Heavy cloud application usage
- Large file transfers and backups
- Multiple simultaneous video conferences
Real-World Example: A marketing agency with 40 employees upgraded from 100Mb to 1Gb when they started creating video content. The extra speed cut their file upload times from hours to minutes, making their team 50% more productive.
10Gb Leased Lines: The Enterprise Solution
Monthly Cost Range: £450 – £2,500
10Gb leased lines are designed for data-heavy businesses that can’t afford any slowdowns. This speed supports:
- 200+ employees
- Real-time data processing
- Large database operations
- Mission-critical applications
Real-World Example: A software development company with 150 employees uses a 10Gb line to sync code repositories, run automated testing, and deploy applications. The reliable high-speed connection saves them approximately 3 hours of productivity per day.
100Gb Leased Lines: The Future-Proof Option
Monthly Cost Range: £2,000 – £20,000
100Gb leased lines typically cost between £2,000 – £20,000+ per month, making them suitable for large enterprises with massive data requirements. This speed handles:
- 500+ employees
- Big data analytics
- High-frequency trading
- Media production and broadcasting
Real-World Example: A financial services company processing millions of transactions daily uses a 100Gb line to ensure zero latency in their trading systems. The cost is easily justified by preventing even one second of downtime that could cost thousands in lost trades.
The Hidden Costs You Need to Know
When comparing leased line prices, don’t just look at the monthly fee. Here are the additional costs to consider:
Installation Costs:
- 100Mb to 1Gb: Usually free with 3-5 year contracts
- 10Gb: £0 – £2,000 (depending on location)
- 100Gb: £0 – £5,000+ (often waived for longer contracts)
Contract Length:
- Shorter contracts (1-2 years): Higher monthly costs
- Longer contracts (3-5 years): Better pricing but less flexibility
Distance from Exchange:
Your location affects pricing significantly. Prices can vary substantially based on how far you are from the exchange. Urban areas typically have lower costs than rural locations.
ROI Calculations: Is the Upgrade Worth It?
Let’s look at some real numbers to help you decide if upgrading makes financial sense:
Scenario 1: Small Business (20 employees)
Current Setup: Slow broadband causing 2 hours of lost productivity daily
Upgrade: 100Mb leased line at £120/month
Calculation:
- Lost productivity cost: 20 employees × 2 hours × £25/hour × 22 days = £22,000/month
- Leased line cost: £120/month
- Monthly savings: £21,880
- ROI: 18,233%
Scenario 2: Growing Agency (50 employees)
Current Setup: 100Mb line causing occasional slowdowns
Upgrade: 1Gb line at £250/month (£130 increase)
Calculation:
- Current productivity loss: 1 hour/day × 50 employees × £30/hour × 22 days = £33,000/month
- Additional cost: £130/month
- Monthly savings: £32,870
- ROI: 25,284%
Scenario 3: Tech Company (200 employees)
Current Setup: 1Gb line limiting development workflows
Upgrade: 10Gb line at £1,500/month (£1,200 increase)
Calculation:
- Developer time saved: 30 minutes/day × 200 employees × £50/hour × 22 days = £183,333/month
- Additional cost: £1,200/month
- Monthly savings: £182,133
- ROI: 15,178%
Business Case Scenarios: Which Speed is Right for You?
Choose 100Mb if:
- You have 5-25 employees
- You use basic cloud applications
- Your business isn’t heavily dependent on internet speed
- Budget is a primary concern
Choose 1Gb if:
- You have 25-75 employees
- You regularly transfer large files
- You use multiple cloud applications simultaneously
- Video conferencing is essential to your business
Choose 10Gb if:
- You have 75-250 employees
- You run data-intensive applications
- Downtime costs you significant money
- You’re in tech, finance, or media industries
Choose 100Gb if:
- You have 250+ employees
- You process massive amounts of data
- You need ultra-low latency
- You’re future-proofing for significant growth
Money-Saving Tips for Leased Lines
- Negotiate Contract Length: Longer contracts often reduce monthly costs by 20-30%
- Bundle Services: Many providers offer discounts for combining leased lines with other services
- Consider Wayleaves: If you can provide building access rights, some providers offer better rates
- Compare Multiple Quotes: Prices can vary significantly between providers, so always get at least 3 quotes
- Time Your Upgrade: Plan installations during less busy periods to avoid rush charges
The Bottom Line: Making the Right Choice
Choosing the right leased line speed isn’t just about technical requirements – it’s about understanding your business’s growth trajectory and calculating the true cost of slow internet.
For most small businesses, a 100Mb line provides excellent value and reliability. Growing companies typically find that 1Gb offers the perfect balance of speed and cost. Larger enterprises should consider 10Gb or 100Gb lines as investments in productivity and competitive advantage.
Remember, the cheapest option isn’t always the most economical. When you factor in productivity losses, customer satisfaction, and business growth opportunities, investing in the right speed tier often pays for itself many times over.
Take Action: Get Your Custom Quote
Every business is unique, and your exact costs will depend on your location, requirements, and chosen provider. The prices in this guide are indicative – your actual leased line costs may be lower or higher depending on your specific circumstances.
Don’t let slow internet hold your business back. With leased line prices becoming more competitive in 2025, there’s never been a better time to upgrade your business connectivity. At Connect2, we help you compare quotes from different providers, and choose the speed that will power your business forward.
The question isn’t whether you can afford a faster leased line – it’s whether you can afford not to have one.
