Guide
Cutting business overheads without cutting quality
Where UK SMEs typically overpay on telecoms, software and office contracts.
Read guideCompare leased lines
Compare dedicated leased lines with guaranteed symmetrical bandwidth, uncontended capacity and strict service level agreements.
Compare leased lines quotes TrustpilotTrustScore 4.7 | reviews
Ready to compare leased lines?
Run a full market comparison before you commit. It takes about five minutes and there's no obligation to apply.
How leased lines works
A leased line is a dedicated fibre circuit between your premises and the provider's network, not shared with any other business.
Bandwidth is symmetrical and uncontended, so a 200Mbps line delivers 200Mbps up and down at 4pm on a Friday as well as at midnight.
They carry the strongest SLAs in UK connectivity, typically with a guaranteed fix time of five to six hours and financial penalties if missed.
What affects the cost of leased lines
- Bandwidth and bearer size
- Distance from the nearest fibre aggregation node
- Excess construction charges at your site
- Contract length (36 and 60 months are cheapest)
- Resilience options and backup circuits
Why compare leased lines with us
Uncontended bandwidth
Capacity is yours alone — no peak-time slowdown.
Symmetrical speeds
Upload matches download, ideal for cloud and VoIP.
Guaranteed fix times
Typically 5 - 6 hours with service credits if breached.
Scalable bearer
A 1Gb bearer lets you increase speed without new cabling.
Typical leased line pricing
Indicative monthly costs excluding VAT on a 36-month term.
| Bandwidth | Bearer | Monthly cost |
|---|---|---|
| 100Mbps | 1Gb | £200 - £350 |
| 200Mbps | 1Gb | £250 - £420 |
| 500Mbps | 1Gb | £350 - £600 |
| 1Gbps | 10Gb | £500 - £950 |
Leased line vs full fibre broadband
How a dedicated circuit compares with a shared business connection.
| Feature | Leased line | Full fibre broadband |
|---|---|---|
| Contention | Uncontended | Shared |
| Upload speed | Symmetrical | Typically lower than download |
| Fix time SLA | 5 - 6 hours | Next business day or best effort |
| Monthly cost | £200+ | £35 - £110 |
Expert advice
Our team reviews UK business suppliers, contract terms and pricing models throughout the year.
“Ask for the excess construction charge survey before you fall in love with the monthly price. That's where leased line budgets die.”
leased lines: pros and cons
Pros
- Guaranteed bandwidth at all times of day
- Strongest SLA available in UK connectivity
- Symmetrical speeds suit cloud, VoIP and large file transfer
- Scales to 10Gbps on the right bearer
Cons
- Substantially more expensive than broadband
- Installation commonly takes 60 to 90 working days
- Excess construction charges can add thousands at difficult sites
How to choose leased lines
The cheapest headline price rarely wins. Check these points before you sign.
- 1
Get an ECC survey early
Excess construction charges are the main budget surprise — ask upfront.
- 2
Size the bearer, not just the speed
A 1Gb bearer lets you upgrade later with a config change, not a dig.
- 3
Compare SLA credits
Check what the provider actually pays out if they miss the fix time.
- 4
Consider resilience
A second diverse circuit or 4G/5G failover protects against cable cuts.
Compare leased lines
See what's available for your business today. It takes just minutes.
How to compare leased lines
It takes a few minutes and there is no obligation to switch.
1. Tell us about your business
Team size, sites and roughly what you spend today.
2. See matched suppliers
We shortlist UK providers who serve businesses like yours.
3. Compare the full package
Contract length, support levels and set-up costs, not just monthly price.
4. Switch when you're ready
Your chosen supplier handles onboarding and any migration.
Things to watch out for
Quoted lead times slip regularly where wayleaves or road works are involved.
Some quotes exclude the router — confirm whether managed CPE is included.
Breaking a 36 or 60 month term is expensive; the full remaining rental is usually due.
Our leased lines service
We compare leased lines from established UK suppliers so you can see pricing, contract terms and support side by side.
Comparing is free, and we will tell you plainly if your current deal already looks competitive.
Getting started
1
Gather your current bills
Your latest invoice shows spend, contract end date and notice period.
2
Map what you actually need
List must-haves versus nice-to-haves so you don't overbuy.
3
Check your exit terms
Most UK business contracts need 30 to 90 days' notice before renewal.
Why choose Grow Your Business?
Wide choice of providers
We compare a broad range of UK providers so you can find the option that actually fits how your business operates.
Exclusive offers
We work hard to bring you exclusive deals, switching incentives and cashback where they're available.
Simple and fast
It takes just a few minutes to compare with us — and the deal you find could be well below what you pay today.
Types of leased lines
The right option depends on your size, budget and how fast you're growing.
Ethernet over FTTC (EoFTTC)
Lower-cost part-fibre option with leased line style SLAs.
Full fibre ethernet
True dedicated fibre from 100Mbps to 10Gbps.
Wavelength services
Very high capacity point-to-point links for data centres.
Resilient dual circuits
Two diverse routes so a single cable cut doesn't take you offline.
Providers we compare
Logos are shown for identification. We are not affiliated with every supplier listed and do not compare the whole market.
BT Business
Virgin Media Business
Zen Internet
Colt
Gamma
Vodafone BusinessComparing with us is a no-brainer
“Since the leased line went in we've had zero connectivity complaints from a forty-person office.”
James, accountancy practice, Bristol
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Read guideleased lines FAQs
How long does a leased line take to install?
Typically 60 to 90 working days, longer if new ducting, wayleaves or road works are required.
What are excess construction charges?
Costs for civil engineering work needed to reach your building. They vary from nothing to several thousand pounds.
Is a leased line worth it for a small office?
If downtime or slow uploads cost you money, yes. Otherwise full fibre broadband is usually sufficient.
Can I get a backup circuit?
Yes. Diverse second circuits or 4G/5G failover are commonly added for business-critical sites.
Written by the Grow Your Business editorial team · Updated 26 July 2026