What SLA’s are provided on a leased line?

We offer an enhanced SLA (Service level agreement) on our Fibre Ethernet Leased Line service that provide 100% up time fix to major service outage within 6 hours regardless of peak times. Make downtime a thing of the past.

What is the lead time for a Fibre Ethernet Leased Line Installation?

If you have existing fibre connection in your premises 90% of our circuits are delivered within 35 working days subject to site survey.

What is the typical response time to your core network?

For services provided within the UK our typical response time is 1-2ms to our core network.

What support is provided on a Fibre Ethernet Leased Line?

We provide proactive monitoring with telephone and email support 24x7x365. If the service is hard down an engineer will be despatched and on site within 6 clock hours.

Business Connectivity

Fibre Ethernet Leased Lines

Dedicated, uncontended full-fibre circuits with guaranteed symmetrical speeds and rapid-response SLAs.

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Part of Business Connectivity

Dedicated fibre, all to yourself.

A leased line is a private, uncontended fibre connection reserved entirely for your business — no sharing, no slowdowns at peak times. It is the gold standard for organisations that simply cannot afford to be offline.

Symmetrical speeds

Matching upload and download from 100Mbps to 100Gbps, so cloud, backup and video all perform.

Guaranteed uptime

Backed by carrier-grade SLAs with rapid-response fault resolution, in writing.

Fully managed install

We handle survey, provisioning and configuration end to end, then support it 24/7/365.

Resilient backup

Stay online whatever happens — add RO2 diverse-fibre resilience, a fibre broadband failover or 4G/5G backup.

Fixed IP addresses

A block of static public IP addresses as standard — ideal for hosting, VPNs, remote access and business-critical applications.

Fast cloud peering

Direct, low-latency peering into the major cloud platforms, so Microsoft 365, Azure, AWS and Google Cloud all feel local.

See what's available at your site

Run a free, instant availability check and get a quote for a dedicated fibre leased line at your exact business address.

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Always watching

Proactive network monitoring

Your leased line is monitored around the clock from our UK Network Operations Centre. We watch performance and availability in real time, so issues are often spotted and resolved before you would ever notice them.

It is the difference between waiting for something to break and having a team already on it — proactive, not reactive.

24/7 NOC oversight

Our Network Operations Centre keeps eyes on your circuit every hour of every day.

Automatic fault detection

Performance and availability are checked continuously, flagging issues the moment they appear.

Rapid response

Alerts go straight to our engineers, who act fast to keep you connected.

Full visibility

See the status of your services any time through our Cascade customer portal.

Why businesses choose Stream

One trusted partner

From connectivity to communications, security and cloud — one team that knows your business.

24/7/365 UK support

Real experts on our own monitored network, on hand whenever you need them.

Carrier-grade & accredited

Built on infrastructure accredited to ISO 9001 and ISO 27001 for peace of mind.

Built-in DDoS protection

Always-on DDoS scrubbing across our network keeps your connection online and protected from attack, 24/7/365.

Never lose connection

Resilient internet backup

Even the best circuit can be affected by a cable break, router, firewall or ISP failure. Our RAO2 diverse-fibre backup automatically switches your traffic to a secondary circuit the moment a fault is detected — keeping your business online without interruption.

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Diverse RAO2 fibre

Diversely routed circuits to separate exchanges and datacentres, protecting against fibre breaks.

Automatic failover

24/7/365 monitoring with seamless, automatic switchover between circuits should one fail.

Dual routers & firewalls

High-availability router and firewall pairs mean a device or port failure never takes you offline.

100% service availability

Combine diverse fibre with active-active or active-passive resilience for continuous uptime.

FAQs

Fibre leased lines, answered

What is a fibre leased line?

A leased line is a dedicated, private fibre connection reserved entirely for your business — never shared with anyone else. That means consistent, symmetrical speeds and reliability you can count on, whatever the time of day.

How fast are Stream's leased lines?

We provide symmetrical speeds — matching upload and download — from 100Mbps up to 100Gbps, and you can scale bandwidth up as your business grows without replacing the circuit.

How long does installation take?

Lead times depend on your location and the fibre infrastructure already in place, but typically fall between 45 and 90 working days. We manage the full survey, provisioning and install, and keep you updated at every stage.

What uptime and SLA do you guarantee?

Every leased line comes with carrier-grade SLAs — guaranteed uptime and rapid-response fault resolution, backed in writing and delivered over our own monitored network.

Leased line or broadband — which do I need?

If your business can't afford downtime or needs guaranteed speeds for cloud, voice or large data transfers, a leased line is the right choice. Broadband can suit smaller or less critical sites. Our team will help you decide what fits.

Can I add a backup connection?

Yes. We can add a fully resilient RO2 diverse-fibre backup, a fibre broadband failover, or 4G/5G failover — so your business stays online even if the primary line is ever disrupted.

Ready to talk about Fibre Ethernet Leased Lines?

Our team will help you scope the right solution for your business — with support that's always on.

Talk to our team 01635 884 170