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Course overview

Our 25-week gas engineer course is the UK’s most comprehensive and in-depth gas gas safe course for adults.

We go the extra mile for all our students, ensuring that they’re not only fully qualified but the most employable as well. Our expert learning and development team have identified skill shortages within the industry through their years of experience. We have incorporated this knowledge into our training syllabus making you a valuable asset for employers.

With a blend of classroom and workshop-based learning, we believe that ‘hands-on’ learning is essential to train for a career in the gas industry.

Qualification Overview

CCN1 – Core Domestic Gas Safety

CPA1 – Combustion Performance Analysis

CENWAT – Domestic Gas Central Heating Boilers & Water Heaters

CKR1 – Domestic Gas Cookers

HTR1 – Domestic Gas Fires & Wall Heaters

Safe Electrical Isolation

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student undertaking gas boiler service training

Stage 1 - Core Gas Safety Training - 7 Weeks

Core Gas Safety training is mandatory content for any gas engineer training course and covers all the elements required to pass your final ACS assessments, allowing you to join the Gas Safe Register. These skills are the minimum criteria for becoming a gas engineer and form the foundations of our training programme.

Core Gas Safety Training Content:

  • Safety, Legislation and Standards
  • Gas Emergency Actions and Procedures
  • Products and Characteristics of Combustion
  • Ventilation for Domestic Gas Burning Appliances
  • Installation of Pipework and Fittings
  • Tightness Testing and Purging
  • Checking and/ or Setting Meter Regulators
  • Unsafe Situations, Emergency Notices and Warning Labels
  • Operation and Positioning of Emergency Isolation
  • Controls and Valves Checking and Setting
  • Appliance Burner Pressures and Gas Rates
  • Operation and Checking of Appliance Gas Safety Devices and Controls
  • Chimney Standards
  • Chimney Installation, Inspection and Testing
  • Re-establish Existing Gas Supply and Re-light Appliances
  • Domestic Pipework Installation
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student being trained on gas boiler fault finding

Stage 2 - Core Practical Skills – 9 Weeks

Our Core Practical Skills takes your heating engineer training to the next level. These topics provide you with the skills and confidence to carry out practical tasks for employers – a key aspect that some training courses may skim over. We believe in training you to be employable as well as qualified, and this module will empower you with the skills and confidence to go out and complete jobs at the end of your course.

Core Practical Skills Content:

  • Installation, Service and Repair of Domestic Ducted Air Heaters
  • Installation, Service and Repair of Domestic Gas Cooking Appliances
  • Installation, Service and Repair of Domestic Gas Fires
  • Installation of Domestic Gas Meters
  • Boiler Manufacturer Specific Training
  • Gas Appliance Component Replacement
  • Specific Electrical Controls Training
  • Electrical Testing of Gas Appliances and System Controls
  • Principles and Procedures of Fault Diagnosis
  • Intelligent Heating Controls
  • Safe Systems of Work
  • Sequence of Operation of Gas Appliances and Systems
  • Central Heating System Design
  • Landlord Gas Safety Certificates
  • Doorstep Protocol and Customer Journey
  • Unvented Hot Water Storage Systems
  • Basic Plumbing Skills
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student being trained on gas pipe bending

Stage 3 - Work Placement and Portfolio – 7 Weeks

All new entrants to the field must complete a portfolio of verified gas work. You are required to record a variety of topics in your portfolio.

Your gas portfolio is your opportunity to stand out from other new heating engineers. A high-quality portfolio demonstrates to potential employers that you have gained the gas safety skills necessary to work in the industry and become a productive member of their team, whilst working safely and effectively. We can’t give you years and years of experience, but we can offer you the best foundation knowledge and practical skills required to build a great career as a gas engineer.

 A completed portfolio is your access to your final ACS assessments.

As part of your course, we will guarantee you a work placement with a Gas Safe registered company. We are one of the few companies in the UK who can offer this to our students. 

One of the major benefits of the work placement companies we use is that many of them lead to our candidates being offered full-time employment after training.

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Stage 4 - ACS Assessment – 2 Weeks

The final part of your gas engineer course involves sitting your ACS assessments. On successful completion of your ACS assessments, you will be eligible to work under the Gas Safe Register, either for yourself or for an employer.

The first week will focus on making sure your portfolio has been completed along with revision for your ACS assessment. The second week will be your final ACS assessment, which takes around five days to complete and contains a mixture of multiple-choice theory papers and practical tasks covering core gas safety.

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some of the best employers from this course

What are your career prospects at the end of this course

When students complete our heating engineer course, they enter a well-established field that offers:

A Competitive Salary

Depending on your experience level and area of expertise, typical salaries for gas engineers range from £30,000 to up to £50,000 a year. By working overtime or running your own business, these figures can increase dramatically.

A Secure Career

Because of the many regulations that require people to hire registered ‘Gas Safe’ engineers, your skills will always be in demand, offering access to a range of career prospects and opportunities. As you gain experience, new opportunities will become available. It’s so much more than just a job – it’s a lifetime career.

Once qualified you could:

  • Install, service and repair gas central heating boilers, water heaters, fires, cookers and meters.
  • Work for gas engineering companies, insurance companies, housing associations and much more.
  • Complete Landlord Gas Safety Certificates.
  • Complete maintenance work for letting agents.
  • Provide boiler cover plans.
  • Apply to work as a subcontractor for British Gas, Boxt, Corgi Homeplan and many other companies.
  • Provide out of hours emergency call-outs at premium rates.
hydrogen gas boiler
air source heat pump

What does the future hold for gas engineers?

The future for gas heating engineers is extremely exciting and lucrative. The UK Government has committed to green alternatives to replace natural gas heating which is certain to create a vast amount of work in our industry.

The two primary technologies for reducing emissions to zero by 2050 are Air Source Heat Pumps and Hydrogen Gas boilers.

The important thing to remember here is although natural gas will eventually be phased out, Hydrogen gas is still gas, and it will still need to be regulated similar to natural gas by a governing body, such as Gas Safe. Also, both Hydrogen boilers and air source heat pumps will need to be installed and maintained by qualified heating engineers, so regardless of the new technologies, heating engineers will still be massively in demand, even more so than they are right now.

When talking to the Daily Mail about the Government deadlines, Charlie Mullins, CEO of Pimlico Plumbers who employ over 400 staff said, ‘The massive effort it would take to get the UK’s 30 odd million dwellings swapped out from old gas to green energy on the government’s timetable would keep the country’s current crop of heating engineers busy for a hundred years.

‘We already have a massive skills shortage in this area as a result of decades of undertraining and sending everyone to university to study English or sociology rather than signing up more apprentices in the building trades. So my message to ministers is – get real if you want anything to change.’

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What to expect on the course

Skills Training Group’s 25-week gas engineer course focuses on high quality, employer-led training that focuses on making you employable. Our training curriculum is designed to not only teach you the requirements to pass your course, but also to be competent enough to confidently use your new skills.

Our gas workshops are well equipped with all the latest technology, but also with older appliances that you will come across in the workplace. To date, we’ve invested over £250,000 to create the best possible training facilities, incorporating real-life practical scenarios to prepare you for the workplace.

Furthermore, all of our expert training staff are fully qualified industry experts with a minimum of 15 years experience working with some of the UK’s most accomplished gas engineering employers.

Key Learning Areas

The key learning areas for our gas engineer course focus on both practical and theory training on the industry recognised qualifications below.

CCN1 & CPA1 – This is the core gas safety certificate that all gas operatives must have to work in the domestic gas industry.

CENWAT – Installation, servicing, repair and commission of domestic central heating boilers and water heaters.

CKR1 – Installation, servicing and repair of domestic gas cooking appliances.

HTR1 – Installation, servicing and repair of gas fires and wall heaters.

Unvented Hot Water Storage Systems – Installation, servicing and maintenance of unvented hot water systems from 15 to 500 litres.

System Design and Fault Finding – Our own system design and fault-finding course aimed at giving you a better understanding of how to repair central heating systems and boilers.

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Some pictures of our gas safety training facilities, students and teachers.

student being trained on gas boiler fault finding
Combi Boiler
System Boiler

Very positive feedback from all staff who were on the training, great trainers and they made the topic interesting and easy to understand.


Due to our UK-wide reputation and contacts, many of our students choose to travel from all over the UK to attend training at one of our centres. Listed below are a couple of accommodation providers you can contact. There are many hotels and B&B's local to us and some students use websites such as to keep accommodation costs to a minimum.

b&b in paisley

Ardgowan House (Paisley Centre)

0141 561 4294

Ardgowan House, bed and breakfast in Paisley, offers a wide variety of accommodation for you to choose from, shared or en-suite facilities, single and double rooms and family rooms available too.

Location Pin
Ardgowan House (Paisley Centre)

92 Renfrew Road

5 minute drive to training centre

1.2 Miles

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hotel in dunfermline

Holiday Inn Express (Dalgety Bay Centre)

01383 748220

Holiday Inn Express Dunfermline, 3 star family-friendly budget hotel in Fife with free wi-fi & free parking.

Location Pin
Holiday Inn Express (Dalgety Bay Centre)

Halbeath Dunfermline
KY11 8DY

12 minute drive from venue

4.4 Miles

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Frequently Asked Questions

Is your course Accredited?

Yes, our course is accredited by LCL Awards.
LCL Awards is one of the Building Services Engineering (BSE) sectors foremost certification bodies, offering qualifications via a network of approximately 200 approved centres located nationwide.

Do you offer any distance learning courses?

No - We don’t believe that you can be trained sufficiently on a self-learning or self-study course within the heating industry because there will be many topics that are too complex to pick up from simply reading a book. There is also a huge amount of practical training required to become a gas engineer, which is not available doing distance learning.

Am I eligible to join the Gas Safe Register after successfully completing the course?

After you have passed your assessments you will be eligible to join the Gas Safe Register and hold the mandatory qualifications to work within the domestic gas industry.

How much does it cost to join the Gas Safe Register?

If you are working for an employer, they will pay this for you. If you start your own company this initial cost will be around £400 and requires to be renewed every year for approximately £120.

Will I gain any hands-on experience during this course?

Of course. Our gas safe course is one of the longest courses available for new entrants. This gives us plenty of time to spend in our practical workshop concentrating on skills that are going to make you employable. You will also spend 7 weeks with a Gas Safe Registered company where you will build up a portfolio of work which is a mandatory requirement before you can be assessed.

Am I guaranteed a job?

Unfortunately, we cannot guarantee you a job. Just like a university degree, there is no guarantee of employment after completing your training, however, by completing your training with us you will have an advantage over other students entering the industry due to our reputation in this sector.

What is the industry standard salary for a gas engineer?

The industry standard salary for a gas engineer ranges between £27,000-£35,000. If you include overtime & standby allowance, it is not uncommon for an engineer to earn well over £45,000 per year. This, however, can be significantly higher if they decide to work as a self-employed gas engineer. Please, read more here.

Do you think I would be able to go self-employed right away?

Many of our students have gone self-employed. It would be much easier if you already come from a technical background as naturally you will pick things up much quicker. If you aren’t from a technical background, you can still go self-employed but we would recommend working with an employer for at least 6 months first to build up your experience.

Do I need to buy anything?

We will supply you with all your PPE, Workwear and tools while in the centre. When on placement you will share your engineer’s tools, however, once you gain employment an employer will expect you to have your own basic tool kit which could cost around £200.

How do I book?

Call one of our customer service team on 0808 164 2780 and they will walk you through the booking process.

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Download your free course information pack today and find out how you can become a fully qualified gas safe engineer.

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