City & Guilds Level 2 Diploma in Network Construction Operations - NCO2 GAS Service Layer

Course details

The City & Guilds NCO2 Gas Service Layer course is a Level 2 qualification for operatives responsible for the installation and maintenance of gas service pipes, which connect the main gas infrastructure to individual properties. This course develops the practical skills and safety knowledge required to work on low-pressure gas service networks.

Who Should Attend This Course?

This course is ideal for:

• Gas operatives working on service pipe connections
• NCO1-qualified individuals progressing into service layer roles
• Employers seeking recognised training for domestic gas connection teams
• Utility contractors needing formal certification for their workforce

Course Content

• Preparing and excavating for gas service pipe installation
• Installing low-pressure service pipes and making safe connections to mains
• Reinstatement techniques following installation
• Service pipe jointing methods and safety precautions
• Pressure testing and purging of new service installations
• Working near live gas with compliance to industry safety regulations
• Interpreting service drawings and documenting work on-site

This qualification offers two specialised pathways:​

1. Service Layer (Self Lay): This pathway focuses on the installation and maintenance of gas services up to 63mm in diameter. Learners will gain competencies in:​

• Creating efficient and effective work environments.​
• Maintaining safe and secure working conditions.
• Establishing and maintaining effective working relationships.​
• Installing equipment for safe operations on highways and construction sites.​
• Excavating and maintaining holes and trenches.​
• Operating powered tools and equipment.​
• Joining materials using electrofusion processes.​
• Conducting specified testing of gas services.​
• Performing connections to gas mains and commissioning.​
• Installing gas services up to 63mm.

2. Service Layer (Distribution): This pathway emphasizes the installation and maintenance of gas services, including those up to 63mm in diameter. Learners will develop skills in:​

• Creating efficient and effective work environments.​
• Maintaining safe and secure working conditions.​
• Establishing and maintaining effective working relationships.​
• Installing equipment for safe operations on highways and construction sites.​
• Excavating and maintaining holes and trenches.​
• Operating powered tools and equipment.​
• Joining materials using electrofusion processes.​
• Conducting specified testing of gas services.​
• Performing connections to gas mains and commissioning.​
• Installing gas services up to 63mm.​

Both pathways are delivered through a combination of classroom-based instruction, hands-on workshop training, and portfolio development. This blended approach ensures that learners not only acquire theoretical knowledge but also gain practical experience essential for effective performance in the field.​

Assessment & Certification

Assessment is by means of a portfolio evidence, written tasks, and on-site practical assessment.

Upon successful completion delegates will be awarded City & Guilds Level 2 Diploma in NCO2 – Gas Service Layer

This certification is recognised by the Energy & Utility Skills Register (EUSR), facilitating site access for service laying activities. ​

EUSR registration is valid for five years and is renewable upon completion of refresher training or demonstration of continued competence. Holding this qualification also opens pathways to advanced roles, such as supervisory positions or specialised technical roles within gas network operations.​

Prerequisites

• Must hold an in  date Network Construction Operations Gas Level 1 (NCO1 Gas  Assistant)

Why Choose This Course?

• Gain a nationally recognised gas service layer qualification
• Qualify to install and test gas service pipes to domestic and small commercial properties
• Improve compliance with health, safety, and utility standards
• Enables career progression within the gas network operations sector

Frequently Asked Questions

Q: What is the NCO2 Gas Service Layer qualification?
A: It’s a City & Guilds Level 2 Diploma that certifies your ability to install, connect, and test gas service pipes from mains to customer properties.

Q: Do I need to complete the Gas Main Layer course too?
A: No, this course is specifically for gas service layers. If you need to work on both mains and service pipes, you’ll need both qualifications.

Q: What are the prerequisites for this course?
A: You must hold an NCO1 Gas Assistant qualification or demonstrate equivalent field experience.

Q: How is the course assessed?
A: Through a combination of written knowledge tasks, practical on-site assessment, and a compiled portfolio of work-based evidence.

Other courses you might be interested in

• City & Guilds Level 1 Certificate in Network Construction Operations - NCO1 GAS Assistant
• City & Guilds Level 2 Diploma in Network Construction Operations - NCO2 GAS Main Layer
• City & Guilds Level 2 Diploma in Network Construction Operations - NCO2 GAS Conversion Main and Service Layer

If you have any questions about this or any other course, please get in touch on 01926 674340