The GT1 Gas Survey

If you are moving into new premises, there are numerous regulatory hoops you have to jump through in order to ensure a smooth transition.

Many people seem to be a little in the dark as to quite how many hoops there are, as well as how to jump through them…

If you are moving into new premises and have to fill out a GT1 gas survey request – keep reading to equip yourself with all of the necessary tools needed.

What is a GT1 gas survey and how do I submit an application?

If you are moving into a new property or business premises that does not have a gas meter (or if you aren’t sure if the meter will be adequate for your purposes), then a GT1 survey is an absolutely essential test.

The Gas Transporter 1 test provides all of the essential information about the gas supply before organising a meter installation. All of the information provided will be used to determine if the current infrastructure in place is able to handle the volume of gas needed for your business, or even if a new or upgraded gas connection is needed, as well as confirm the pressure of the gas.

Why would I need a GT1?

There are multiple reasons why someone may need to submit a GT1 survey. For example, if you need to find out whether a particular gas pipe can supply gas to your property, or if you’re installing new equipment and have to know if your gas supply can withstand the increased demand, or even if you’re removing a gas pipe and would like to know if there is still live gas inside.

How does a GT1 survey gas pipe pressure test work?

It is not too uncommon when moving into new premises to find there is no longer a meter connected to the gas pipes. There may be known gas pipes on-site and throughout the property, but whether there is a live gas supply or not is unclear. It is essential to apply for a GT1 to get to grips with the current condition of the supply, as well as what it will take to get the gas flowing again.

If you have moved into a commercial premises and propose increasing the volume of gas to the property or need a gas meter fitted, a GT1 test is crucial.

GT1 Surveys will let you know…

It is possible for GT1 surveys to be completed remotely, but it is more common to require an engineer visit to the site. A successful GT1 survey will tell you:

  • The capacity of the gas pipe in kilowatts (kW)
  • The size and type of the Emergency Control Valve (ECV) – these come in many different sizes and can be screwed or threaded, and either metric or imperial, depending on the age
  • The pressure in the gas main. This can be Low Pressure (LP), Medium Pressure (LP), Intermediate Pressure (LP), or High Pressure (HP)
  • A live-dead test to find out whether the gas connection is still live and connected to the pipe or not

How long does a GT1 take?

It is incredibly difficult to provide a general estimation for completion of a GT1 as it depends on the availability of engineers, as well as being influenced by adverse weather conditions. For most properties, an estimation of between 10 and 15 working days from the date of submission holds mostly true.

The GT1 Application Guide – Everything you need to know (by Section)

Section 1: Details of Person/Organisation requesting information

Date of Request: Provide the date of the request.

Requester’s Reference Number: If you have a known reference number for the project, please enter. If not, it is acceptable to leave this box blank.

Requester Organisation: If you are filling out the form on behalf of a 3rd party then you will need to provide the organisation’s name. If it is a request for personal property then this box is acceptable to leave blank.

Requester’s Address and Postcode: The address where correspondence should be sent to.

Contact Name, Email, and Phone Number: If there is a query about the GT1 request, then the person this should be directed to should have their name and contact details on the form.

Section 2: Site Details

Site Name, Address, and Postcode: The site address for the gas service being tested.

Contact and Phone Number: Most GT1 requests will require a site visit from a surveyor – who should be met on-site by a representative. Contact details of the person who will meet the surveyor should be put here.

O.S Grid Reference Number: Precise location information is important in avoiding any potential mistakes with addresses, as well as being helpful when looking at gas pipework plans and locations.

MPRN: A meter point reference number is found on most gas bills, but if you are having trouble finding it then you should contact your supplier. They will let you know the unique identification number.

Connections Quotation Reference Number: If you have had a recent quotation from a utility infrastructure provider (UIP), then there will be an associated reference number with this. Please put this in if you have it, if not then it is acceptable to leave blank.

Status Report from Requester: Tick the most relevant box(es). If you already know that there is no gas at the emergency control valve (ECV) or there is no ECV at the end of the service, then it is acceptable to leave these boxes blank.

Energy Required: If you know your Service Pipe Energy Value (SPEV) in kWh then put it here. SPEV is the maximum hourly gas load with all appliances working at the same time. If this is not known, then you will need to consult with a Gas Safe registered engineer.

Section 3: Information Required

Smart Metering: Is this request being made as part of a smart metering installation – if so, you must tick yes. You must also tick yes if a smart meter has been, or is due to be installed on the service. Tick no if there is no meter on the service and you have also not approached a gas supplier to provide one.

Pressure Information Required: If you would like to know the pressure of the service tick yes or no accordingly. If you plan on providing this information to a gas supplier or meter asset manager then tick yes.

Capacity Information Required: If you would like to know whether a specific gas load can pass through your existing service tick yes or no accordingly.

Available ECV Details Required: If you require the emergency control valve size, tick yes or no accordingly.

Service Pipe Status Live/Dead Check Undertaken: If a live/dead check has been undertaken recently, tick yes or no accordingly.

Live/Dead Reference Number: If you have requested a live/dead test for the gas transporter prior to submitting the GT1 submission, then the reference number should be provided. If no such check has taken place or been requested, then it is acceptable to leave blank.

New Service:  If a new service has been installed recently, then tick yes or no accordingly. If yes, provide the UIP reference in section 2 in the ‘Connections Quotation Reference’ box.

Existing Service: If there is a known existing service to the property, tick yes or no accordingly.

Niccolo Gas – For all your gas products

Many businesses are (astonishingly) still in the dark as to how hiring a business gas specialist could benefit their company. Further to this, many still believe that flexible contracts are inherently ‘risky’. 

Well, those businesses who had partnered with a reliable energy supplier like Niccolo Gas on flexible energy contracts will have been left much less exposed to current events than others. 

How’s that for risky? 

By partnering with Niccolo Gas as your commercial gas customer, you instantly gain extensive industry knowledge and reliable service, access to a range of business gas products that are suited to businesses of all types, dedicated services from one of our local teams. 

All of this is on top of a huge reduction in your business costs. 

Unlike some suppliers, we actually want to talk to you – so get in contact today! 

Call us: 0131 610 8868

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We look forward to hearing from you!

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