Gas Installation Cost

Written by Samantha Jones
Samantha Jones
Editor-in-Chief
I have a degree in English & Writing. I have been working as a content developer for three years now and have also been freelance writing for three years. I have been focussing my freelance writing within the home improvement and DIY sector.
10th September, 2025
How we get our data
We gather our data from real quotes given by UK tradespeople to UK homeowners on the MyJobQuote platform.
At a glance
  • Cost to connect a new gas supply is £2,000 to £4,000.
  • The cost of a gas supply reconnection is £400 to £700.
  • A new gas connection will take approximately 8 - 12 weeks to complete.
In this guide:
  • Cost breakdown for a new gas supply.
  • Factors that affect gas installation costs and what's involved in a gas installation.
  • How to find and hire a qualified gas installer.

Want to discover the cost of a new gas supply?

If you do, this guide covers everything you need to know. We break down typical costs related to installing a gas mains supply including gas installer fees, how different factors affect the price you're quoted, and what you need to do to get started.

If you're refurbishing an old property and want to connect to mains gas, or you're a developer who want to install a new gas supply, it's advised to get quotes as early as possible so you can properly cost the project.

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Average Cost of Running a Gas Supply to a Property:

Depending on the work required, the job can take between 8 – 12 weeks.

£650

How Much Does a New Gas Supply Cost?

Typical costs for a new gas supply connection in the UK range from £2,000 to £4,000.

However, the prices you're quoted will depend on the property's distance from the mains, property type, and whether you're using a Gas Distribution Network (GDN) or an Independent Gas Transporter (IGT).

Many homeowners consider installing a mains gas supply for several reasons.

You might have just moved into a property that's never been connected before, you may be building a new home, or you could be switching from electric heating to a gas boiler and radiators.

While the upfront cost of a new gas connection can seem high, mains gas is generally far more cost effective than electricity in the long term.

Connecting to the gas network is a complex process, so it must be carried out by qualified specialists.

If your property is not already connected, you'll need to apply through a Gas Distribution Network (GDN) company, which manages the mains supply in your region.

Alternatively, you may choose an Independent Gas Transporter. These smaller companies can often provide the same service at a lower cost and with more flexibility.

Gas Connection Prices

Job Description Duration Typical Cost
Reconnection to existing mains supply 2-4 weeks £400-£700
New connection within 23m of mains 6-8 weeks £500-£1,000
New connection – over 23m from mains 8-12 weeks £2,000-£4,000
Additional trenching/reinstatement varies £500-£1,500
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Factors Affecting Gas Connection Costs

  • Distance From Mains. Longer distances require more piping and trenching, increasing costs.
  • Ground Type. Digging through roads or concrete is more expensive than soil or grass.
  • Provider Choice. IGTs can often offer lower costs for contestable work.
  • Additional Work. Reinstatement, internal pipework and appliance installation such as a gas boiler add to the total cost.

Connecting Gas to Mains

If you're wondering what the process is for connecting a property to the mains gas supply, here's a summary of how it works:

  • Check if property has previously been connected to the gas supply.
  • Identify Regional Gas Distribution Network (GDN) and request a survey.
  • Alternatively, compare quotes from Independent Gas Transporters (IGTs) for contestable work.
  • GDN/IGT carries out connection works according to regulations.
  • Hire a Gas Safe registered engineer to install pipework, radiators and a combi boiler in the property.
  • Final inspection and gas supply activation.
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Things to Consider When Running Gas to a Property

Connecting a house to mains gas supply is a major decision, and could require a lot of work, depending on your property and the location.

Reconnecting Gas vs. New Gas Supply

To have a gas connection to your property, you must be connected to the main gas grid. If your property was once connected to mains gas, it's a simple task of reconnecting to the existing mains gas supply.

Reconnections to the gas network shouldn't cost too much money, with an average cost of around £500.

For a brand new connection, the cost is much higher. Running a new supply from the gas grid can cost several thousand pounds, particularly if the property is far from the nearest mains.

Contestable and Non-Contestable Work

Some parts of the job such as connecting to the gas mains can only be carried out by the local GDN. This is called contestable work.

Other parts of the process such as laying pipework on private land, are contestable, meaning you can hire an IGT or independent contractor for the work which can reduce costs.

Property Location and Cost to Run Gas to a Property UK

Your property's proximity to the nearest mains supply will be one of the biggest cost factors.

If neighbours already have gas, you're likely close to a main gas supply line and the costs should be lower.

In rural or remote areas, costs rise because new pipes may need to be laid over long distances.

If your property is within 23 meters of a mains supply, then cost of connection will be quite low, if not then new piping will have to be laid which will increase the cost of the project to the thousands.

There are currently eight gas companies, responsible for eight regions. They include Wales and West, Northern Gas Networks and SGN – to name a few.

You must identify which one of these companies operate in your area, you can easily do this online in a matter of minutes. There are also smaller companies or IGTs that operate in these regionalised areas. IGTs own and operate a number of smaller gas networks in these regions.

Hiring an IGT will serve you well if you are looking at ways to keep costs to a minimum. Because the regional GDNs hold a monopoly on gas and network connections, OFGEM has introduced regulations to encourage competition and choice for consumers, allowing IGTs to offer their services.

Checklist for Running Gas to Your Property

  • Identify your regional GDN and enquire with them about the job you want doing and request a quote.
  • Do some research into local IGTs who can do some aspects of the job at a lower cost.
  • The cost of the job will be based on your location and the type of property you have.
  • A gas supply will be costly in the short term, but you will see savings over the coming years.
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FAQs

Who do I need to contact get a gas supply to my property?

To start running gas to your property, you will need to contact the regional Gas Distribution Network to evaluate the job and carry out the work for you. GDNs own and are responsible for most of the utilities and networks in the region, therefore will have authority to complete the work.

Can I hire a different company to connect my property to a gas supply?

Yes, you can - instead of going to a GDN, you can go to an Independent Gas Transporter. IGTs are allowed to operate within the regions due to OFGEM regulations for competitors and consumer choice as GDNs hold a monopoly on this service.

IGTs can offer much more competitive prices. However, they are only authorised to carry out some aspects of the job, the work will have to be completed by the GDN.

Can I run a gas supply to my house without hiring a specialist?

Unfortunately, you cannot undertake this work as a DIY project. Running a gas supply to a property requires access to the gas supply in your area, and you are not authorised to do that. You will have to contact the regional GDN.
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