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Dedicated Business Connectivity

Check Leased Lines
availability in your area

A leased line is a dedicated communication line rented for your exclusive use – delivering a private, secure and symmetrical connection for critical internet and data traffic between locations.

Dedicated & guaranteed bandwidth
Private, secure & SLA-backed
Designed for UK businesses & sites
24/7 UK-based specialist support
Check leased line availability

Tell us where you are – we’ll compare the market and come back with options.

Live quote desk
What are leased lines?

Dedicated connectivity built for business-critical workloads

A leased line is a private, fixed-bandwidth connection between your premises and the internet or another site. Unlike broadband, which is a shared service with fluctuating speeds, a leased line gives you dedicated, symmetrical bandwidth, ultra-low contention and rock-solid reliability – ideal for head offices, key branches, data-heavy applications and always-on operations.

Dedicated connection

Your line is not shared with other users in the area, so you get consistent performance at all times of day – even at peak business hours.

Ultra-fast, symmetrical speeds

Choose from Mbps to multi-Gbps circuits with matching upload and download speeds, so video, backup, VoIP and cloud applications all stay responsive.

Private & secure

Enjoy a dedicated, point-to-point connection for internet or site-to-site traffic, with improved privacy and easier compliance versus shared broadband.

Cost-effective at scale

While the monthly cost is higher than broadband, predictable performance, uptime and support make leased lines exceptional value for data-heavy and always-on businesses.

Guaranteed bandwidth & SLAs

Service Level Agreements (SLAs) cover uptime, latency and fix times, giving you confidence your connectivity will perform exactly as promised.

24/7 specialist support

Our UK-based network specialists monitor and support circuits around the clock, so issues are identified and resolved quickly – often before you notice.

Why leased lines for business?

Keep branches, teams and applications always-on

Leased lines are ideal wherever downtime is not an option. From connecting branch offices and data centres to powering VoIP, video, cloud applications and VPNs, a dedicated circuit keeps business traffic flowing smoothly and securely – without the unpredictability of shared services.

Connect HQ, branches and remote data centres with private point-to-point or point-to-multipoint connectivity.
Support VoIP, video conferencing and collaboration tools with consistent, low-latency performance.
Back up and replicate data to the cloud or secondary sites without saturating bandwidth for users.
Scale bandwidth from a few Mbps to multiple Gbps as your business and usage grow.
Why buy from us?

We design, deliver and support end-to-end

We compare the market, design the right connectivity for your sites and manage the full lifecycle – from survey and install to proactive monitoring and 24/7 support.

Superfast speeds
Vital high-speed data transfer

High-bandwidth options for demanding networks, heavy data transfer and latency-sensitive applications across your organisation.

Resilient & secure
Enterprise-grade security posture

24/7 monitoring of our network and systems, with designs aligned to ISO 27001 practices and defence-in-depth principles.

Ultimate reliability
Built to minimise downtime

Backup circuits, diverse routing and competitive SLAs help you keep mission-critical operations and customer services online.

Specialist support
24/7 access to experts

UK-based technical teams who understand both your network and your business, available around the clock.

Best prices
Market-wide comparison

We compare leading carriers on your behalf to find some of the most competitive leased line pricing available anywhere.

Trusted by SMEs
Thousands of UK businesses

SMEs across the UK rely on us for connectivity and communications all day, every day – from single sites to multi-branch estates.

Frequently asked questions

Your leased line questions, answered

Understand how leased lines compare to broadband, what affects speed and cost, and what to expect from installation and SLAs.

How does a leased line differ from broadband?
Unlike broadband, which is a shared connection with speeds that can fluctuate depending on other users, a leased line is a dedicated circuit just for your organisation. You get symmetrical upload and download speeds, guaranteed bandwidth and enterprise-grade SLAs – ideal for critical business traffic.
How is the speed of a leased line determined?
Speed is determined by the bandwidth you choose, typically ranging from a few Mbps to multiple Gbps. We’ll work with you to size the circuit based on how many users, sites and applications you need to support – and can scale bandwidth up as your requirements grow.
What is a Service Level Agreement (SLA) for leased lines?
An SLA is a contract that defines the minimum service levels you can expect – such as uptime, latency and target fix times. It ensures the provider delivers reliable performance and gives you clear recourse if targets are not met.
How long does it take to install a leased line?
Installation timelines vary depending on location, access requirements and local infrastructure. In most cases, you should expect lead times from a few weeks up to a couple of months, particularly where new fibre needs to be built.
Are leased lines suitable for residential use?
Leased lines are primarily designed for businesses with demanding connectivity needs. Some residential users do choose them for specialist requirements, but they are less common and more expensive than standard broadband connections.
How much does a leased line cost?
Pricing depends on bandwidth, contract term and location. While upfront and monthly costs are higher than broadband, leased lines deliver far better value in terms of reliability, performance and the business impact of reduced downtime.
Pricing & policy

Clear terms, monthly billing and flexible options

We provide transparent, business-ready pricing backed by clear policies, so you know exactly what you’re getting from your leased line service.

At IDSL, we’re your go-to partner for cutting-edge technology solutions in the UK – from CCTV and security systems to broadband and telecom connectivity. Our services are billed monthly per user (excluding VAT) with a standard 12‑month commitment. Promotional offers typically run for 6–12 months before reverting to standard pricing. Unlimited calling options are available, with specific terms applying.
Visit our main site for full pricing details and terms.

Please note: imagery may include IDSL CCTV cameras and other equipment features currently under development. For the latest information, detailed tariffs and policy documents, please refer to our primary website.

Need sales advice?

Speak to our leased line specialists today

Whether you’re upgrading from broadband, connecting new sites or reviewing your connectivity strategy, our team can help you choose the right leased line option and handle everything from design to install.