FAQs, Emergencies, Timescales, Jargon


Here is a list of our more frequently asked questions. If you cannot find the information you are looking for please contact us.

What Should I Do If I Have A Gas Emergency Or Pressure Problem?
Your first call of action should be to telephone the gas emergency service on 0800 111 999 to rule out any safety or leakage issues (an engineer will normally attend within one hour of your phone call). Next open every door and window to aerate the location with an immediate supply of fresh air. Then proceed with turning off the appliance and the main gas feed. Before reusing the appliance ensure it is checked by a “Gas Safe” qualified engineer. Do not smoke or turn on any lights or electrical appliances.

Who Will My Gas Supplier Be?
If we are organising a gas meter to be installed on your behalf, you are free to choose the gas supplier you desire. 1Gas are independent from the gas supplier so you are in complete control to choose whichever supplier of gas you are most comfortable with.

How Do I Apply For Gas Installation With 1Gas?
To apply for gas connections and gas installations with 1Gas, please complete the relevant quote request form on our ‘quote request’ page. Please note that for any customers wanting new pipework installations we will require a scaled map, with local geography and a North indicator, showing preferred meter positions marked with a ‘X’.

How Much Do You Charge For Your Gas Services?
Gas metering charges can vary, depending on the size of gas meter and if the mains pressure is low, medium, high or intermediate. A standard-size gas meter will normally be charged at a fixed cost. For gas connections, gas pipes are bespoke and involve much longer timescales and complexity – no two jobs are the same. Costs for gas connection pipes typically start at around £750 but can, on occasion, be much higher.

1Gas focus on providing competitively priced quotes that are sourced independently for specific jobs including gas meter / gas pipe connection installation and removal, through to gas supplier pricing. We are aware that shopping around can generate considerable savings when searching for gas connection requirements. We therefore carry out all your work and our “no obligation” quotes guarantee you have piece of mind when using our services. In fact we can say with confidence that you will be so pleased with our services, that you will use us time and time again as well as recommending our services.

How Long Does It Take To Get A Quote From 1Gas?
At 1Gas, gas connection and gas installation quotes normally take between 11-20 working days, calculated from when all the necessary information and maps needed have been provided to us. Gas meter quotes can typically be provided within 5 working days from your request but can be before this.

What Are The Lead Times For Work To Start?
Gas meters can normally be installed within 5-20 working days, depending on the size of the gas meter, and payment and acceptance of our quote has been made. Gas connection pipe works usually commence within 6-8 weeks but, depending on complexity and engineering availability, this could take longer, especially if there are any unforeseen technical difficulties


Your first action should be to call the gas emergency service on 0800 111 999 to rule out any safety or leakage issues. An engineer will normally attend within one hour. Open all doors and windows to ventilate the room. Get fresh air immediately. Switch off the appliance and do not reuse it until it has been checked by a Gas Safe registered engineer. Shut off the gas supply at the mains (if you know where this is). Do not smoke or turn on any lights or electrical appliances.


Leadtimes for works to be completed after payment and acceptance vary depending on the scope of works, UK location, council permissions, size of gas pipe / meter required, contractor availability, and engineering difficulties.
Gas meter quotes normally can be issued in 1-3 days. Gas pipe quotes take around 1-4 weeks.
Gas pipe installations typically take 6-8 weeks to complete after acceptance. Meter installation lead times vary from 5 days to 15 working days for large industrial meters. From time to time there will be unavoidable delays because unexpected problems can occur.
Please note that leadtimes unfortunately cannot be guaranteed but we will work with you to try and meet you requirements. We work hard on your behalf to ensure and delays that do occur are minimised and communicated effectively.


Required on some larger gas meters to make meter readings more accurate. Most customers will notice, on their bill, standard conversions which take into account the temperature and pressure which affect the amount of gas which can go through a meter with every digit change on the meter. Sometimes less or more gas is going through and so a converter doesn’t use average local temperature and pressure data, but uses exact information at the meter location to make bills more accurate.

Automated Meter Reading requires a device to sit on a meter and counts ‘heartbeats’ on the meter resulting in data being sent to a gas supplier, removing the requirement to physically read a gas meter. A gas supplier can also sometimes provide access to data and graphs so a customer can monitor energy usage.

AQ = Annual Quantity
This is the estimated annual usage of gas, over a year, in kWh. National Grid normally estimate for customers based on previous usage and this is part of the basis of a supply contract agreement where a customer has to agree to use, e.g. 80-120% of their AQ or they may be charged for under- or over-usage. Gas suppliers buy gas up front to secure prices, consequently a gas supplier may be out of pocket if significantly more or less gas is used, causing the supplier to want to recoup their costs.

MPR = Meter Point Reference Number
This is a unique reference National Grid uses to identify gas connection pipes.

MSN = Meter Serial Number
This is a unique reference to identify a gas meter.

kWh = Kilowatts per hour
This is the most common energy usage requirement format. To ensure a gas meter is adequately sized, the maximum hourly load is required in kW/h.

MAM = Meter Asset Manager
This is the company which owns a gas meter and are asked by gas suppliers to fit meters, they then charge a rental to suppliers which is how they make their money.

ECV = Emergency Control Valve
This is normally a valve with a lever or wheel which allows gas to be turned off before the gas meter on the gas connection pipe. Sometimes problems can occur when the ECV is a different size compared to the inlet size of the meter.

Meter Inlet
The meter inlet is the entry to the gas meter on National Grid’s side of the meter or the terminus of the gas connection pipe.

Meter Outlet & Outlet Pipework
The exit of the gas meter and pipework downstream of the gas meter that connects from a gas meter to a customers own equipment and appliances.

GT1 / Service Check
A check where an engineer comes on site and confirms if a gas connection pipe can deliver a customer’s required maximum hourly load. The ECV size and service pressure are normally confirmed too.