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Minor works

Sometimes standard maintenance approaches may not be optimal for our customers. Where this is the case the Minor Works Agreement can enable parties to agree different maintenance approaches through a bilateral contract with directly connected customers. Customers can pay the incremental costs of working flexibly outside normal working practices where we are able to accommodate these requests. For example:

  • Customer-initiated requests for us to change our planned maintenance to a non-standard arrangement, such as requesting planned maintenance during non-standard hours (e.g., weekend or bank holiday).

  • Customer-initiated requests for NGG work, including the isolation of their supply to facilitate the customer's works.

If you would like more information, please take a look at our standard Minor Works Agreement.


The Minor Works Agreement covers non-routine works facilitated for third parties, which includes isolations. 

This form is only to be used to request planned works on National Grid’s gas transmission sites. It is not to be used in the event of an emergency situation.  

Please provide at least 40 days notice, to allow us to plan the work and raise or gain approval for the necessary Non-Routine Operation (NRO) procedure for the work. If an NRO is not required, then this timescale may be reduced. 

Please note that this pro-forma form does not constitute a contract. See Terms and Conditions (link to open PDF). 

The process has 4 steps: 

  1. the customer completes and submits the form
  2. We will provide a quote, based on the information in the form, and other information provided by the relevant Operations Team 
  3. Once the customer accepts the quote, the relevant Operations Team will plan and complete the work 
  4. National Grid will invoice your company for the work 

If you would like more information, please email [email protected]id.com 

All fields marked with “*” are mandatory
Invoicing details
Details of work
Note: All valves etc. must be clearly identified
Eg: purging
Write “N/A” if not needed 
Customer's site contact details