ACS GAS TRAINING COURSE | BECOME A GAS SAFE ENGINEER
Tutors with decades of experience in the industry deliver a complete, three-step ACS Gas Training Course. With a mixture of theoretical knowledge and practical skills making up the course, students learn everything they need to know to go onto become a qualified gas engineer. On-site experience is a mandatory part of the course and it is invaluable to gas trainees.
Here at Options Skills, we provide you with support and the best platform possible from which to gain your ACS qualifications and become a gas safe registered gas engineer.
- Step One - Centre Led Training
- Step Two - Portfolio Building
- Step Three - ACS Initial Training And Assessment
Available for those who are complete beginners, as well as those with existing industry experience, initial training to become a gas engineer will be tailored to suit your needs.
Stage one of the ACS Gas Training Course is delivered in small groups at one of the Options Skills training centres. You will be taught a mixture of theoretical information and practical skills, ranging from health and safety instruction to gas cooker installation and servicing.
This part of your gas training is designed to be an in-depth introduction to gas work and installation, preparing you to move onto stage two where you will undertake on-site work experience with a qualified gas engineer.
Centre led training can be undertaken on either a full-time or part-time basis and you will be tutored by gas engineers who have years of experience in the industry.
Stage two of training is a legal requirement for anyone training to become a gas engineer.
During this stage, you will spend a minimum of 100 days working with a qualified gas engineer. Under their supervision, you will undertake a range of gas work, documenting this to complete a portfolio.
Your portfolio acts as evidence of the work you have undertaken as a trainee and must be of an acceptable quality to allow you progress to the next stage of training.
Options Skills can guarantee to provide students with a gas engineer with which to work if necessary.
The time taken to complete the portfolio will vary from trainee to trainee. There is a minimum duration of 100 days and a maximum duration of up to 2-years for you to complete this stage of your training.
Before moving onto stage three, you must pass a summative assessment. This includes; three written assessments, one practical assessment and portfolio evaluation. It is upon the completion and passing of this that you can go onto book your ACS Assessment.
In your final stage of the ACS gas training course, you will be invited back to the training centre to undertake your ACS initial training and qualifications.
Including a practical and verbal examination, you will cover Gas Core Safety, Central Heating and Boilers, Gas Fires, Gas Cookers and Flue Gas Analyser – otherwise known as the domestic suite of gas qualifications.
ACS gas qualifications must be renewed every 5-years, although the process just involves reassessment for existing registered gas engineers.
Once you have successfully passed your ACS Gas Assessment, you may now apply to the Gas Safe Register for membership in your own right. Membership of the Gas Safe Register is renewable annually and fees are payable directly to the Gas Safe Register.



Division | Gas Training Division |
Module | G1 - Centre Led Training |
Course Title | Domestic Gas Course |
- The acquisition of initial Nationally Accredited Certification Scheme for Gas Fitting Operatives (ACS) certificate(s) of Gas Safety Competence.
- The acquisition of a Regulated Qualifications Framework (RQF) in England, Wales and Northern Ireland or Scottish Credit and Qualifications Framework (SCQF) gas utilisation certificate.
- The issue of a Training Completion Certificate (TCC).
Division | Gas Training Division |
Module | G1 - Centre Led Training |
Course Title | Domestic Gas Course |
Duration | 300 guided learning hours plus structured self-study |
Location | Options Skills Training Centre |
Attendance Type | Full time (Monday to Friday) or part time week blocks |
Suitability | This programme is designed for new entrants to the gas industry |
Prerequisites | Candidate must be assessed for suitability prior to course attendance |
Candidate must be registered with awarding body 1 week before the start of the training course | |
Course Objective | To develop the candidates understanding and knowledge of gas regulations and critical practical skills required to work as a registered gas installer |
Course Content - Theory | Domestic Natural Gas |
Health & Safety, Personal Protective Equipment (PPE) and risk assessments | |
History of the gas industry | |
Gas legislation | |
Industry unsafe situations | |
Installation of gas supply in domestic premises (theory) | |
Installation and purge volume calculations | |
Calculating pipe sizing for domestic appliances | |
Combustion of natural gas and its properties | |
Primary safety devices and controls (theory) | |
Chimney standards and principle(s) of flues | |
Ventilation requirements and installation requirements | |
Electrical safe isolation (theory) | |
Central heating system design and hot water storage | |
Knowledge and understanding of "Y" plan and "S" plan wiring systems | |
Knowledge and understanding of gas appliance installations and their standards |
Course Content - Practical | Domestic Natural Gas |
The application of PPE and risk assessment | |
Bending and manipulation of copper tube | |
Installation and fabrication of steel pipe and fittings | |
Installing compression fittings on gas supplies | |
The use of a propane torch for soldering activities | |
Installation of pipe frames utilising a variety of jointing materials | |
Domestic gas meter installations | |
Internal pipe installation from gas meter to appliance point | |
Gas tightness testing following industry standard procedure | |
Purging of domestic gas supplies and installations | |
Gas pressure testing using water manometer (U gauge) | |
Conducting flue gas analysis on a variety of appliance types | |
Testing chimney performance and integrity | |
Measuring gas consumption and conducting gas rates on appliances | |
Hands on primary safety device and controls testing | |
Installation of gas cookers to required standards | |
Installation of gas fires to required standards | |
The service and commissioning of boiler cookers and fires | |
Applying electrical safe isolation techniques when working on installations | |
Basic central heating wiring exercises |
Assessment | Written and Practical Formative Assessments |
Qualifications | RQF Certificate of Completion of Managed Learning Programme (Gas) |
Accreditation | LCL Awards |
Next Step | G2 - On-site Portfolio Building |
Division | Gas Training Division |
Module | G2 - On-site Portfolio Building |
Course Title | Domestic Gas Course |
Duration | Open - minimum 100 days |
Location | In the workplace (on-site) |
Attendance Type | N/A |
Suitability | For new entrants to the gas industry |
Prerequisites | Completion of G1/Step 1 - Options Skills Managed Learning Programme (MLP) |
Course Objective | This is a legal requirement to enable the candidate to gain valuable on-site experience with a practising and Registered Gas Safe Installer. The trainee will work under supervision using skills gained at the training centre, building confidence, knowledge and experience |
Course Content - Practical | A suitable portfolio of evidence must be built under the supervision of a registered Gas Safe installer. This will include a variety of tasks such as those listed below. The portfolio isn’t limited to this list, it is intended as a guide. |
Gas pipework installation up to and including 35mm | |
Re-installing and up-dating gas meter installation to current standards | |
The installation of gas cookers, ovens and hob units | |
The installation of gas fires and space heaters | |
The installation of boilers (heat only, combi and system) and central heating systems | |
Core gas safety activities and commissioning procedures, including:
|
|
The service/maintenance and break down of cookers, ovens and hob units | |
The service/maintenance and break down of gas fires and space heaters | |
The service/maintenance and break down of central heating boilers and heating systems | |
Conduct and complete Landlord Safety Checks |
Prerequisites | On completion of an on-site portfolio, the portfolio will be assessed and verified by Options Skills to industry standard awarding body criteria. |
Content - Practical and Theory | Summative practical and theory assessments |
Assessment | Conduct a series of summative written papers and complete an hour long summative practical assessment in a designated training/assessment centre. |
Qualifications | DNGA1-5 MLP Certification |
Accreditation | LCL Awards |
Next Step | G3 - ACS Initial Training and Assessment |
Division | Gas Training Division |
Module | G3 - ACS Initial Training and Assessment |
Course Title | Domestic Gas Course |
Duration | 80 guided learning hours |
Location | Training Centre |
Attendance Type | Full time (Monday to Friday) |
Suitability | For people that wish to gain ACS Gas Qualifications |
Prerequisites | For candidates that have completed G1 Managed Learning Programme, then G2 on-site portfolio and summative assessments. Candidate will only be assessed for appliances/ qualifications listed below if he or she has built sufficient evidence within their portfolio. |
Course Objective | Train and assess learner’s knowledge and understanding of domestic gas core gas safety. If successful the candidate will obtain ACS Gas Qualifications that will allow them to apply for Gas Safe Registration in their own right or work as an approved operative for a Gas Safe Registered organisation |
Content - Theory and Practical | Refresher training and preparation for assessment |
Assessment | Written and practical assessment in Core Gas Safety. Gas Safety for domestic appliances; boilers & water heaters, gas fires (space heaters) and gas cookers) |
Qualifications | Domestic Suite of Gas Qualifications
|
Accreditation | LCL Awards |
Next Step | Apply for Gas Safe Registration |
- Why Train As A Gas Engineer?
- What Will You Get?
- How Will I Find A Gas Mentor?
- What Happens If I Fail?
- Will I Get A Refund If I Fail?
- What If I Already Have Experience?
- Am I Guaranteed To Pass The Exam?
- Will I Be Taught How To Pass The Exam?
In the industry, you also get the benefit of variety. No working day will be the same, you’ll be working on different jobs, for different people and in various locations.
With a shortage of skilled workers across the board and an increase in housing being built, tradespeople such as gas engineers are in high demand. Those already in the trade are earning an average annual income of £32,500, but there is great potential for an even higher amount.
For more information, read Why Become A Gas Engineer and How Much Can I Earn As A Gas Engineer.
Throughout training, you will have a student liaison manager ensuring everything is going smoothly and who you can talk to if ever necessary. We continue to offer support even after you’ve completed your ACS gas training course and qualified.
During your time here, you will be taught by tutors with years of industry experience, who really know the ins and outs of the industry. You will also undertake on-site training, ensuring you’re fully introduced to the industry and have sufficient experience before you begin working independently.
However, if you don't, here at Options Skills, we guarantee to find you a qualified gas engineer to act as your mentor during step two of your ACS gas training course.
Due to years of experience in the industry, Options Skills have built up an impressive network of gas engineers, meaning we will be able to place you with someone local to allow you to complete your gas portfolio.

Guaranteed
Gas Mentor
We guarantee a local mentor
near you for your portfolio building.

UK
Training Centres
We Have Centres in London
Manchester, & Birmingham.

Build Staff
In-house recruitment
services available to students.

Full Time or
Part Time Courses
Courses available on a
part-time or full-time basis.

Nationwide Student
Job Opportunities
Major Companies
Looking For Our Students

Centre Led
Learning
We don't believe that
home study courses are viable