100Mbps | 1Gbps | 10Gbps | Ethernet First Mile

We explore the latest leased line costs from across 100Mbps and 1Gbps circuits.

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In addition to BT Business Leased Line pricing, we've launched NU Connect. Want to see which of 9 major service providers is a good fit against your postcode with network reach maps to understand where you would connect?

We'll send you a great report with a breakdown of costs including diverse Ethernet, EFM failover or 4G failover.

What are the average leased line costs?

  • In 2019, the current standard leased line costs begin anywhere from £220 for 10Mbps on a 100Mbps circuit through to £290 for 100Mbps on a 1Gbps circuit. Pricing varies depending on the distance to the local service provider PoP.


How we can help with your leased line search? You can check live by calling 0333 202 1011 or get in touch via this page. 

We've created Network Union Connect to help IT teams understand how their locations are situated across 9 major service providers including BT Business, BT Wholesale, COLT, Level 3, TalkTalk, SSE, Virgin Media, Vodafone and Virtual1.

The network reach map, featured above, allows potential buyers of leased line services to understand how they are positioned against serving nodes together with which provider is offering the lowest cost.

All quotations are available with or without a managed router together with a number of failover options including Broadband, 4G and Ethernet over FTTC depending on availability. We are able to specifically analyse options for your business to understand whether certain failover options may not be available.

Where maximum uptime is required, resilient access products allow us to design Ethernet capability with no single point of failure, subject to survey. And, we'll also provide the option to include Security and Cloud access with hosted voice packages or SIP where required.

How we work?

We're known for our work as an Authorised Partner for BT, we've helped numerous organisations buy UK and Global connectivity. We've launched NU Connect in recognition that BT is not a good fit for every client. In this respect, our Connect platform allows any business to really understand which of the major service providers is a good fit from a reach perspective but also pricing.


"We'd like to know which service provider is a best fit for our office."

It take us 30 seconds to search your postcode vs 9 major service providers. If you are interested in obtaining more detail about your surrounding network infrastructure, we can deliver network reach reports to show where connecting nodes are in regards to your office. Call 0333 202 1011 or click the button.
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"We have a current BT account or we would like options from BT Business."

As an Authorised Partner for BT Business, we have access to the complete portfolio of business services. If BT is of interest, we can request current offers and deals directly from our Partner resources with Cisco Meraki WiFI including optional security. Call 0333 202 1011 or click the button.
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Leased Line Costs Search-1

Above. Our NU Connect team will provide a free report on how your office location is situated vs. 9 major servicer providers.

BTNet Leased Line Offers

Example BTNet Leased Line Offers.



What is the typical SLA for Ethernet leased line services?

  • 4 hour support response time and 5-hour target fix.
  • Flex bandwidth quickly up to the the 100Mbps or 1Gbps limit.
  • Delivery SLA: Beyond 7 days of CDD (Committed Delivery Date).
  • Leased lines provide 100% availability, reduction of rental charges if an outage occurs
  • Core network guarantees a latency of 20ms or less between core nodes.
  • Transatlantic leased line latency is guaranteed at 95ms of less between transit hubs.
  • All managed hardware should covered for 4-hour change where required. (based on the typical Cisco fix time)

What are the resiliency and diversity options to improve SLA uptime?

Adding resilience to your leased line requires the addition of a diverse secondary circuit, RA02 Secure Plus. We will primarily design a solution which avoids any single point of failure (subject to survey). The success of any resilient and diverse solution surrounds the ability to connect into diverse building entry points, dual routers and dual tail circuits routed to separate exchanges.

Again, this is a real plus point regarding the discussion of network coverage since larger network providers can provision/route your traffic into diverse points within the network. With managed services, two managed routers are deployed configured as an HSRP pair. If one managed route fails, the failover would automatically re-route your Internet traffic.

As you would expect when connecting a second circuit, the overall costs will increase.

Services are also available with load balancing - the traffic is shared across two physical access which, again, may be diversely routed. The second circuit could be a lower bandwidth than the primary circuit depending on the traffic profile. With leased line bandwidth connection speeds available from 10MBits Ethernet through to 10Gbps within hosting sites, there's a little risk of congestion. Available managed (with router) or unmanaged.

The majority of leased lines offer a 1:1 performance guarantee, uncontended to ensure applications and data perform with a consistent level of speed and uptime. These features provide a competitive edge to your business. As an example, 35% of UK broadband consumers use BT's Internet services with peering agreements which mean 75% of users connecting to the Internet are only a hop away.

Flexing of bandwidth is easy: you're able to flex within 72 hours, so you only pay for what you need. With circuits typically based on 100MB Ethernet, you'll get plenty of bandwidth to avoid congestion.

Ethernet circuits are supported 24/7/365 with a 4 hour response time and 5 hour fix. The only exception if copper-based Ethernet First Mile (EFM) where the support fix time is typically around 7 hours.

In the corporate environment, it is important to protect users and your web presence. We ask about security to prevent illegal downloading of content - including  optional services which safeguard your web presence against attacks.

BGP Multihoming

A further more complex design is available called BGP multihomed architecture. This is where two ISPs are used to provide diversity and resiliency. Customers purchase their own AS (Autonomous System) number and essentially become part of the Internet.

BTNet Failover design

Above. Leased Line failover.


Leased line IP Addressing and DNS (Domain Registration System).

  • ISP's include a set of IP addressing and DNS management
  • The DNS element covers where the ISP points your traffic for web, email and other hosts. 
  • For example, if you host your own web or email server, DNS resolves the hostname to the IP address - e.g. Wikipedia to an IP address.

Firewall Security, DDoS, IP Addressing and DNS.

All public Internet services require Firewall security to protect your userbase from external threats. With the addition of Cisco Meraki, BT (as an example) now offer the security licence to negate the need for an additional Firewall. In addition to general security, how your business intends to use the leased line from the perspective of applications must also be considered. If, for example, voice (VoIP) is to be used, the users traffic is typically segregated.

In the corporate environment, it is important to protect users and your web presence. Leased line services offer security to prevent illegal downloading of content. Selected ISP capabilities also offer optional services which safeguard your web presence against attacks.

The Internet Watch Foundations managed blacklist to prevent users from downloading illegal content. Providers also proactively monitor and protect the core network against denial of service attacks. There is also security accredited to BSI 7799 / ISO 17799 with optional distributed denial of service protection. Essentially, the service mitigates against traffic DDoS attacks, DoS floods, Protocol misuse, works and behaviour anomaly based attacks. If you're unsure about these terms, we'll explain over coffee.

DDOS (Distributed Denial of Service) is an additional option available to clients. 

Example PDF attached - BT Assure DDoS

IP Addressing is available - both IPv4 and IPv6 - but all applications must be justified to RIPE. In other words, let us know as soon as possible the amount of hosts on your network requiring a static IP address.

With regards to DNS, the typical email system is based on the Simple Mail Transfer Protocol (SMTP). SMTP allows the transmission of messages from one server to another.

Multiple mail servers may be used (if you have your own mail server) an SMTP outgoing mail service and a 2nd preference incoming mail service. This is based on standard SMTP protocols.

The services supported by the Mail platform are:

  • Outgoing Mail (SMTP Relay) – customer can configure email server to send via the ISP mail server
  • Incoming Mail (2nd preference Mx) - Provides a back-up mail service to the customer’s primary mail server. The customer would configure their DNS settings so that in the event their primary mail server is down their mail gets sent to the Incoming Mail servers. Servers hold the mail for 3 days and will attempt to re-deliver this mail to the end customer’s primary mail servers when they become available. This is a backup mail service.
  • Access to the SMTP outgoing mail relay service is controlled by adding the Customer’s domain name to an access list. The customer must have a matching forward (A record) and Reverse DNS12 entry that should be provided at time of order.
  • The Incoming and outgoing mail relays both use the Spamhaus blacklist and will not relay or accept mail for IPs on this list. Customers managing their own mail servers must ensure they are NOT configured to allow open mail relay. Failure to enforce this could lead to the ISP blocking all customers mail as open relays are used for SPAM.

Discuss your requirements with a leased line Ethernet expert?

  • If you need to speak about specific requirements such as diversity, we'll arrange a web conference or face to face meeting.
  • We're able to add Cloud and Security as optional extras, e.g. Microsoft ExpressRoute or Cloud Voice / SIP.

How we technically account manage your account?

We’ve taken the time to become Leased Line pricing and product experts.

We work with both Global & UK Enterprise clients helping them to implement the right Business Ethernet connectivity and maintain good practice throughout the contract. All sales are covered by our WAN architecture diagnostic approach (WADA): Enterprise level consultancy built in at no extra cost.

Our workflows will allow you to design a solution which will meet requirements. Whether you're looking for a single leased line circuit or a dual approach with diversity and resilience, Network Union will perform the work to ensure you conclude with a fit for purpose design together with the best possible leased line costs.


What else is there to know?

  • Since your traffic is best served when sent over a single provider (rather than effectively hopping from provider to provider) certain networks have a significant advantage vs. most of the competition.
  • And perhaps this is the key critical area to be aware of since smaller providers may be offering Internet access out of a single data centre using wholesale providers such as Open Reach and Virgin to connect your business.

Some final thoughts on obtaining leased line costs?

Providers range from the very small through to medium sized providers and then onto larger tier 1's such as BT. With the word 'premium' you might expect the line pricing to be significantly higher than the lower cost smaller providers. However, BT is typically never the lowest cost, but the pricing is not far out considering the scale and breadth of their leased line network.

A step away from broadband technology

One of the reasons dedicated leased lines have become competitive surrounds a couple of critical areas. The first is the limitations of broadband Internet speeds, in particular, upload. Even with some significant advances in fibre to the cabinet based services, the upload speed is still an issue for some organisations.

Also, with exception of FTTP, broadband is a copper based service which does not pose the same attributes as an end to end fibre based leased circuit. With clients suffering issues with poor quality copper, variable speeds and a higher incidence of downtime, a leased line has become more compelling than ever.

A further reason of why Ethernet is a great option for applications which are deployed over corporate Internet circuits. These apps range from delay-sensitive voice and video conferencing, cloud computing through to extranet and remote users requiring Citrix or SAP access to the network on a global basis.

How much does a leased line cost?

If your budget is limited, the overall Ethernet 100MB leased line fibre pricing vs. FTTC broadband may well be an issue. We see pricing from £150 to around £1000 per month depending on the distance from the providers network. When you consider Business Broadband ranges from £20 to £50 per month, leased lines are a significant cost uplift depending on the size of your business.

Is the 100Mbps Ethernet leased line still the best option vs 1Gbps?

The pricing of 1Gbps Ethernet is becoming significantly lower due to the increasing demand for this level of bandwidth. We have witnessed the demise of the 10Mbits circuits as 100Mbits speeds are now the lowest entry level within the marketplace. Readers should note that tiered circuits are the standard - for example; you could opt for 100Mbps tiered at 10Mbps. When using our quotation service, let our team know your preferred option.


Outside of BT Leased Line, what other capabilities are offered?












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