A leased line with 1 GB bandwidth aims to deliver a speed of 1 Gbps, along with additional promising features such as an uncontended network, equal download and upload speeds, and more. It is an ideal connectivity solution for businesses upgrading their lower bandwidth leased lines (50 MB and 100 MB) or simply switching from their outdated broadband connection to something more reliable.
In this blog, we will focus on the 1 GB leased line and explore its related costs in detail. We’ll also highlight the types of businesses that most benefit from this option, its advantages, features and what to look for in a provider to simplify your search.
Key Takeaways
- A 1 GB leased line typically costs between £220 and £1,200+ per month in the UK, depending on your location, contract length, and provider.
- Businesses in major cities like London and Manchester pay lower monthly rates, while those in rural areas pay higher rates.
- Unlike 1 GB FTTP broadband, a leased line is uncontended and symmetrical, meaning your 1 GB speed is dedicated solely to your business.
- The final price you are quoted is rarely the final figure; hidden costs such as ECCs, early termination fees, hardware costs, and SLAs can add thousands to your final costs.
- 1 GB leased line installation takes 45 to 90 working days, so businesses with time-sensitive connectivity needs should plan well in advance.
- 1 GB leased lines come with a contractual SLA, usually guaranteeing 99.9% uptime and a fault fix target of 4 to 6 hours.
What is a 1 GB leased line?
A 1 GB leased line provides a dedicated connection of 1 gigabit per second for small to mid-sized businesses, delivered through a fibre glass network laid underground. A bandwidth of 1 GB lies perfectly in the middle of the available speed options, neither as low as 50 MB nor as high as 10 GB. It has become one of the most sought-after leased line choices in the UK corporate sector.
Businesses typically use it to connect a site to an ISP network or link two or more premises directly (point-to-point leased line). It provides a more advanced and reliable alternative to traditional landline broadband connections.
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Why choose a 1 GB leased line?
A 1 GB leased line is the perfect match for businesses dealing with data-heavy tasks, such as hosting a website, using VoIP, using a large number of devices at a time, and communicating between multiple locations for remote work. Here are the features provided by a 1 GB leased line:
Equal download and upload speeds
A broadband connection can also provide a bandwidth of 1 GB, so why choose a 1 GB leased line? That is because it provides equally high upload speeds. Broadband connections are specifically designed for independent users who use the internet mainly for downloading and less for uploading purposes. But businesses that upload large amounts of data to the cloud daily need competitive upload speeds of 1 GB, which broadband networks can’t provide.
Dedicated connection
A 1 GB leased line provides a dedicated, private connection for its users with no bandwidth sharing. As a result, users experience consistent speeds without any interruption caused by network congestion or peak usage times.
SLAs
1 GB leased line contracts are legally protected with service-level agreements. Providers highlight their service metrics in their contracts so users know exactly what features to expect. If any of the SLA criteria are not met, for example, a user experiencing more downtime than expected is entitled to compensation, as backed by the contract.
Maximum connection uptime
After setting up the connection, the leased line provider consistently monitors it to stay ahead of any issues. That is why the minimal downtime is expected with many leased line contracts, offering an uptime of 99.99%.
Scalability
As the business grows, the same 1 GB leased line can be upgraded to 10 GB to match future needs. In many cases, businesses are already upgrading to a 1 GB leased line from their previous connections of 100 MB.
Minimal resolution times
A 1 GB leased line provides resolution times as low as a few days in case of issues with the infrastructure. These expected minimum and maximum resolution times are also outlined in the SLAs.
Reliability
Leased lines offer high reliability with their uncontended connections, equal upload and download speeds, minimal resolution times and maximum uptime, all legally supported by SLAs. They also provide multiple speed options, starting from as low as 50 Mbps, 100 Mbps, 1 Gbps, and 100 Gbps.
Cost breakdown of a 1 GB leased line
We have divided the leased line associated costs of 1 GB into two main types, based on the frequency of payment. Let us take a closer look at this cost breakdown along with its average price ranges in the market.
Installation costs
| Condition | Installation charges |
|---|---|
|
Type of leased line |
|
|
Degree of digging |
|
|
Type of provider |
|
Installation costs are one-time charges paid at the initial stages of the contract for establishing the infrastructure. You’ll find that these charges mostly remain similar for different bandwidth connections, whether that be 50MB, 100 MB, or 1 GB. That is because it depends on factors other than the speed of connection.
In general, you can expect to pay installation charges in the range of £0 to £20,000. The factors that decide the exact amount payable for installing a 1 GB leased line are:
- Your chosen provider: Different providers have different evaluation criteria and cost structures for installation charges. Each provider takes different factors into account and provides a quotation accordingly.
- Contract length: Generally, providers waive the full installation fee or provide discounts if you sign up with them for a longer term (more than 24 months).
- Wireless or wired: Wireless leased lines require less complicated infrastructure than wired leased lines (consisting of fibre leased lines), which require two points of connection to be physically connected.
- Area survey: It refers to the analysis of the surroundings in which the connection is required. Providers take into account if the area is rich in existing infrastructure, whether they have a data centre nearby and calculate the amount of digging required to bury the leased lines.
Monthly costs
The monthly costs of a leased line connection directly vary with its bandwidth; a 1 GB leased line has higher charges than a 100 MB leased line. Typically, the average monthly charges of a 1 GB leased line are in the range of £300 – £650/ per month. In addition to connection bandwidth, the monthly charges of a 1 GB leased line also depend on:
- Type of leased line: Fibre leased lines are most commonly referred to as just “leased lines”, so it’s the most common type, which uses fibre optic cables for its complete connection. However, other options like EFM and EoFTTC offer closer alternatives with varying prices.
- The extent of SLAs: Leased line contracts with extensive service level agreements are pricier than those with basic SLAs. Businesses that opt for comprehensive contracts with maximum SLA coverage typically pay above the industry-standard rates.
Monthly cost comparison with other speed options
50 MB leased line: Monthly prices range from £135 to £200.
100 MB leased line: Monthly charges fall in the price range of £185 to £270.
1 Gb leased line: Monthly charges are expected to be £300 – £650.
10 GB leased line: Average monthly charges start from £650 per month.
Location-By-Location Cost Breakdown Of 1 GB Leased Line
A 1 GB leased line in the UK will cost a whole variety of different amounts depending on where your business is located; it isn’t just one number. In general, the nearer your premises are to existing fibre infrastructure, the more competitively priced your options will be.
Businesses in rural or remote areas face dramatically higher monthly costs and installation charges, largely due to the civil works needed to run a fibre connection to their sites.
The table below shows the estimated pricing ranges by location for a 1 GB leased line on a standard 36-month contract in 2026. All figures estimate industry average costs in the UK; your precise quote will depend on your postcode, preferred provider, and existing infrastructure.
| Location | Estimated Monthly Price | Installment Fee | Key Highlights |
|---|---|---|---|
|
Central London |
£450 to £700 |
Often free |
The fibre infrastructure is dense, and there is more carrier competition, so prices are lower |
|
Manchester and Birmingham |
£500 to £800 |
Often free |
Decent fibre coverage and competition |
|
Leeds, Bristol and Edinburgh |
£550 to £850 |
Often free |
Good fibre infrastructure availability |
|
Suburban Commercial Areas |
£650 to £950 |
£500 to £5,000 |
Prices are based on the distance to the nearest fibre infrastructure |
|
Semi-Rural Areas |
£800 to £1,100 |
£2,000 to £10,000+ |
Limited carrier competition and higher civil works costs are common |
|
Rural Areas |
£1,000 to £1,200 |
Up to £20,000 |
Additional charges apply for additional fibre infrastructure construction |
Important Note: Above prices are market estimates for 2026 over a 36-month contract term. You can also save around 10% to 15% of monthly expenses by opting for a 60-month contract. Installation fees are often waived on longer contracts for well-connected sites. Make sure to ask for a postcode-level quote, since this is how pricing will be calculated based on your specific location.
1 GB Leased Line Vs 1 GB FTTP Broadband: Side-By-Side Comparison
As companies consider gigabit connectivity, a familiar question emerges: is the high cost for a 1 GB leased line over 1 GB FTTP broadband worthwhile?
Both services, on paper, only provide speeds up to 1 GB. But, in practice, they are quite different products designed for different needs.
The comparison table below outlines these differences to help you choose the option best for your business:
| Feature | 1 GB Leased Line | 1 GB FTTP Broadband |
|---|---|---|
|
Download Speed |
Guaranteed 1 GB |
Up to 1 GB (Not Guaranteed) |
|
Upload Speed |
1 GB symmetrical (the same as download) |
Usually 50 to 115 Mbps (slower than download) |
|
Contention (Sharing) |
Uncontended; solely dedicated to your business |
Shared with nearby homes and businesses |
|
Speed Consistency |
100% consistent, even at peak times |
Tends to fluctuate during peak hours |
|
Service Level Agreement (SLA) |
Yes, the uptime target of 99.9% |
No guaranteed fixed time for fixes or uptime SLA |
|
Installation Time |
45 to 90 working days |
10 to 30 working days |
|
Estimated Monthly Cost |
£220 to £1,200 depending on location |
£30 to £80 |
|
Installation Cost |
Free to £20,000 depending on the civil work required |
Usually free or low cost |
|
Contract Length |
36 to 60 months |
12 to 24 months |
|
Scalability |
Easily scalable to 10 GB on same hardware |
New line or full upgrade required for more bandwidth |
|
Security |
Private, dedicated and secure connection |
Shared network, basic consumer-level security |
|
Best For |
Medium and large businesses with heavy cloud usage |
Small businesses with low basic internet requirements and budgets |
In Short: If you run a small business with relatively simple internet requirements, 1 GB FTTP broadband could make economic sense. However, a 1 GB leased line is designed for businesses that cannot afford to compromise on consistent performance, guaranteed uptime, or fast resolution times, especially if they run cloud-heavy operations, use VoIP systems, or transfer large packets of data daily.
Hidden Costs Of 1 GB Leased Line
The monthly rent quoted for a 1 GB leased line is rarely the complete picture. There are a handful of surcharges that can sneak up on businesses, particularly if you’re comparing providers without knowing what features to look for. Here are the top hidden costs to watch for before you sign a contract:
1. Excess Construction Charges (ECCs)
There are several surprises with leased line pricing, but ECCs tend to be some of the most common and costly. They kick in when your premises are not currently part of the provider’s fibre network, and new infrastructure must be created to provide access.
It’s estimated that most, if not all, leased line quotes contain ECCs which aren’t clearly marked before you pay for them, ranging anywhere from £1,000 to £10,000. In rural or industrial locations where excavation, ducting, and wayleave agreements are necessary, costs can rise to £20,000 or more.
So, before signing a contract, always check with your provider and confirm whether ECCs apply to your site.
2. Early Termination Charges
The majority of 1 GB leased line agreements are for a term of 36 or 60 months. Leaving early almost always requires paying that amount in full. As an example, if you were to exit a £500/month contract with 12 months left, you would have to pay £6,000 in termination fees.
If your business is experiencing rapid change due to growth, relocation, or restructuring, it may be worth negotiating flexibility into your contract terms before signing, even if that means agreeing to a slightly higher monthly rate.
3. Hardware and Equipment Costs
The circuits are rented on leased lines over a fixed period of time, and this is where many leased line quotes can be misleading; they are based purely upon the circuit rental. But you might also want to factor in the following:
- A managed router, which is either immediately bought or rented every month through the provider.
- A firewall (if not included with your package).
- Cabling or internal network upgrades for gigabit speeds.
If you rent the equipment and terminate the contract, you will usually have to return it at your expense. If you’re on a rent-to-own model, there could also be a buyout payment at the end that’s not included in the initial quote.
4. SLA Upgrade Premiums
In a standard leased line contract, the service level agreement would be a 99.9% uptime SLA and a 4- to 6-hour fault fix target. But if your business needs a high-tier SLA, like a 4-hour fix guarantee with a dedicated account manager or improved response times, then you can usually expect such a service to incur an extra monthly fee.
Before you assume that your quote includes the kind of support level you need, read the SLA terms closely and ask about what compensation is provided in case those targets are not met.
5. Installation Fees on Short-Term Contracts
Many providers waive the installation fee completely with contracts lasting 36 or 60 months. Yet, if you take a shorter 12-month term, which would appear lower risk, you will probably pay an upfront installation fee that can be between £300 and £800 for uncomplicated sites.
When comparing quotes, always look at the total cost of the contract (monthly rental times the length of the contract, plus any installation or ECC charges) rather than just comparing the monthly costs.
6. Price Increases Mid-Contract
It may also be worth checking if your contract has any clauses for yearly price increases. Some providers will apply a Consumer Price Index (CPI) or Retail Price Index (RPI) uplift every year, as that can gradually compound your costs over a 36- or 60-month term.
Ask your provider if your rate is fixed for the contract’s entire length or if increases are included in writing.
Ideal businesses for 1 GB leased lines
Leased lines are beneficial for all types and sizes of businesses, but some especially benefit from them because of their nature of work (remote or cloud-based businesses) or operations (businesses centred around technology). These are:
Software and IT companies
For software and IT companies, a 1 GB leased line is the framework for efficient working. It allows software engineers and developers to back up piles of data with its high upload speed and zero contingency. Businesses can keep up with internal communication and backup, along with making sure their websites and applications continue to run smoothly to provide top-level services to their customers.
Telecommunication businesses
A 1 GB leased line provides maximum reliability and uptime to call and telecommunication centres. Mostly, such businesses work remotely and need smooth communication to and from each location. This dedicated connection can handle data-intensive VoIP calls to provide the highest service quality to their customers without any jittering, low signals, bad quality or dropping calls.
Financial businesses
In finance, it is critical to make the right decision at the right time with no chance to lose an opportunity. A 1 GB leased line offers the lowest possible latency to track the real-time market and stay ahead of your competitors. The private nature of the connection allows for maintaining maximum security of client privacy and the sensitive nature of large-scale transactions.
Media businesses
Media companies constantly work with large-scale videos and media files. A 1 GB leased line allows teams to upload 100 GB+ files in minutes and speed up the whole process of sending and receiving files. In addition to higher speeds, the data quality also remains consistent over large distances with minimal interruptions.
How to choose a 1 GB leased line provider?
Choosing the right leased line provider for your 1 GB connection is one of the most important parts of the process. The success of your connection and how it plays in the long term depends on how well your provider provides services. We have listed down some factors that you should look for in your provider before finalising your option:
Competitive prices
It is crucial to get transparent and competitive pricing from the provider you’d be working with in the long term. Look for a provider that offers a clear breakdown of costs, including the installation fee, monthly charges and potential additional prices. The goal is to find a balance of fair pricing and competitive services, rather than simply the cheapest option.
Flexible contract terms
If you are unsure about long-term contracts of up to 36 months, look for other options. Find providers who offer flexibility, such as 12 or 24-month terms to match your business’s needs. A reliable provider will make it easy to scale your bandwidth with minimal changes.
Infrastructure coverage
Before finalising your provider, make sure that their fibre network reaches your specific building in your area. Always confirm whether they have existing infrastructure in your area. Such a provider typically offers faster installation with affordable charges than one that has to lease lines from another company.
Available speed options
A 1 GB leased line is the only bandwidth option. Think about your future needs and scaling possibilities. A competitive provider should offer speeds up to 10 GB so your leased line connection can grow with your business.
Extensive SLAs
The service level agreements define your provider’s commitments and legally oblige them to provide the same service as advertised. Carefully read the agreement to analyse the extent of SLAs covered, along with the compensation you receive if these targets are missed.
Quality customer service
When your connection goes down, you need immediate support. Search providers known for their 24/7 customer service. You want to work with a leased line provider that provides practical support to solve your problems promptly.
Compare providers
Lastly, compare leased line providers which work with businesses like yours. This will help you compare pricing, features, customer support and SLAs in real time to choose the most suitable provider for your business.
Explore reliable 1 GB leased line providers in the UK with ComparedBusiness UK
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The monthly cost of a 1 GB leased line typically ranges between £300 and £650 per month. The exact cost depends on factors such as contract length, provider, and the type of SLA included. Installation charges can range from £0 up to £20,000, though many providers waive or reduce these fees for longer-term contracts.
All businesses can benefit from reliable connectivity, but industries such as IT and software companies, telecom centres, financial institutions, and media organisations often find a 1 GB leased line essential due to their data-heavy operations and need for high reliability.
Broadband shares bandwidth with multiple users, but a 1 GB leased line provides a dedicated and uncontended connection with equal download and upload speeds. This provides consistent performance, minimal downtime, and maximum security to businesses.
