How Much Does a Leased Line Cost? UK Price Guide 2025

What Is a Leased Line?

A leased line is a dedicated, uncontended fibre connection running directly to your business premises. Unlike standard broadband, the bandwidth is not shared with other users — your 100Mbps or 1Gbps circuit is yours alone, available consistently 24 hours a day. Leased lines also deliver symmetrical speeds: upload and download are equal, which matters for businesses running VoIP, video conferencing, cloud backup, and hosted servers simultaneously.

UK Leased Line Pricing in 2025

Leased line pricing in the UK has fallen consistently over the past decade as full-fibre infrastructure has expanded. The following ranges reflect current realistic market pricing for a 36-month contract:

100Mbps Leased Line

• City centre and well-connected areas: from £69–£350/month
• Suburban and edge-of-town: from £69–£500/month
• Rural and remote: from £69–£700+/month

500Mbps Leased Line

• City centre: from £139–£500/month
• Suburban: from £139–£650/month
• Rural: from £139–£900+/month

1Gbps Leased Line

• City centre: from £129–£700/month
• Suburban: from £129–£900/month
• Rural: from £129–£1,200+/month

These figures represent the monthly rental cost. Installation charges vary: many providers waive installation for standard contract terms, but sites requiring significant civil works may face charges of £500–£3,000+ depending on the extent of the build required to reach the premises.

What Drives the Cost of a Leased Line?

Location

Location is the single biggest pricing variable. A business in central Manchester or Birmingham can often get a 100Mbps leased line for under £250/month because multiple providers have active fibre infrastructure in the area, creating genuine competition. The same business in a rural village may face costs two or three times higher simply because the nearest fibre infrastructure is farther away and fewer providers have networks in the area.

Speed

Higher speeds cost more, but the price-per-Mbps decreases as you move up the speed tiers. A 1Gbps circuit is typically not ten times the cost of a 100Mbps circuit at the same location — it is closer to two to three times the cost. This means upgrading from 100Mbps to 500Mbps or 1Gbps is often better value per megabit than it appears.

Contract Length

Standard contracts are 36 or 60 months. A 60-month term typically reduces monthly cost by 10–20% compared to a 36-month term. However, a longer commitment requires confidence that the premises and the bandwidth requirement will remain stable.

Provider and Network

Multiple providers serve the same postcode in many urban areas, running circuits over different physical networks (Openreach, CityFibre, Virgin Media Business, Zayo, and others). Where genuine choice exists, competitive pricing is available. Where a single provider has a monopoly at a specific location, the price reflects that.

SLA Tier

Higher SLA tiers — faster fault response, lower MTTR, greater uptime guarantees — carry a premium. Standard leased lines offer 99.99% uptime and an MTTR of 5–20 hours. Enhanced SLA packages offering 99.95% uptime and 4-hour fix guarantees cost more but are appropriate for sites where downtime carries significant financial consequences.

Installation Lead Times

Standard leased line installation takes 45–90 working days from order. This timeline covers the site survey, wayleave processes (if applicable), civil works, and network provisioning. Sites close to existing fibre infrastructure may complete faster; sites requiring significant new duct runs take longer. Plan well in advance if you are currently on contract with another provider and need the new circuit live before your existing contract expires.

How to Get an Accurate Quote

The only reliable way to get an accurate leased line price is a postcode-level availability check combined with a site survey. Prices quoted before a survey are estimates; the firm price comes after the survey confirms the distance and nature of any civil works required.

AMVIA runs availability checks across multiple UK providers simultaneously, compares the results, and manages the quoting and survey process on your behalf. This approach identifies which networks can realistically serve your site and removes the risk of receiving an artificially low estimate that increases after the survey.