Expert Gas Engineer Training & ACS Certification in Sheffield

We’re specialist in delivering Domestic and Commercial ACS Assessments

Gas engineer working on a boiler

We’re specialist in delivering Domestic and Commercial ACS Assessments

Are you ready to take a new career direction? Or are you already a gas engineer who needs ACS reassessment to renew your certificate of competence?

At Gas Training UK Ltd, we support both new entrants and experienced engineers with professional, hands-on training.

Expert Gas Engineer Training in our Sheffield Centre

We run all courses from our purpose-built training centre in Sheffield, designed specifically for gas, oil, LPG, and renewable energy training. Our fully qualified trainers and assessors create a relaxed, supportive learning environment, making it easier for you to build confidence and develop the skills you need to progress.

Gas Diploma Courses for New Starters and Career Changers

Our Gas Diploma Course suits both newcomers to the industry and learners with existing plumbing or heating qualifications who want to move toward Gas Safe registration. The programme combines practical training, theory, and portfolio development, giving you a strong foundation for your ACS assessments.

ACS Reassessment and Specialist Update Training

If you’re an experienced engineer who needs to renew your ACS qualifications, we offer tailored ACS refresher and reassessment training. Instead of coaching you just to pass the exam, we focus on updating your knowledge, strengthening your skills, and helping you meet all current industry requirements to stay Gas Safe registered.

Courses across multiple Gas and Heating Sectors

Alongside our domestic gas training programmes, we also provide specialist courses in:

  • Commercial and industrial pipework
  • Commercial heating
  • Catering and laundry gas systems
  • LPG and ESP
  • Oil-fired appliances
  • Renewable technologies

These options help you expand your expertise and open new opportunities in the wider heating and energy sector.

Our courses

Gas Training UK Ltd can offer diploma (foundation) gas courses for new  engineers and adults retraining into the gas, oil and LPG industry. Your skills  will develop under the guidance and  expertise of our experienced trainers, techniques and facilities.

OFTEC Oil Training Courses for engineers expanding into oil work; domestic and light commercial oil fired  boilers and heating systems and new  entrants with Oil work experience.

OFTEC Accredited solid fuel courses for  engineers expanding into the installation, commissioning and  servicing of solid fuel burning appliances.

OFTEC Air source heat pump course gives installers the skills and knowledge required to correctly design, install and maintain Air Source Heat Pump systems.

Whether you’re just starting out in plumbing or are an old hand, our comprehensive range of plumbing courses will get you where you want to  go, from basic training all the way up  to advanced Plumber.

The aim of this course is to provide gas operatives with information on legislation and training in both the  practical and theoretical aspects of domestic gas safety in preparation for their initial CCN1 assessments.

Our ACS Re-Assessment Gas Safety courses consist of refresher training and will provide candidates with  relevant up to date knowledge prior to completion of their re-assessments.

Become a Gas Engineer with Gas Training UK Ltd in Sheffield


As well as studying to become a gas engineer, Gas Training UK Ltd can also offer training in plumbing and electrical installation work. 

We are a Cert-ain Certification Ltd approved centre. We are located on the Holbrook Industrial Estate, easily accessed from the M1/M18 and Sheffield Halfway tram stop. 

Call us today to discuss our courses by using the phone number above or for more general enquiries use the form on the Contact us page and we will reply as soon as possible.

Gas Training UK place picture
5.0
Based on 210 reviews
powered by Google
Antony Cherry profile pictureAntony Cherry
15:00 11 Dec 25
Great set off guys from the reception stuff to the tutors, very professional, would recommend to anyone
Ian Reynolds profile pictureIan Reynolds
14:54 11 Dec 25
Brilliant and friendly Instructors
Scott Turtle profile pictureScott Turtle
14:51 11 Dec 25
Great, Friendly Staff
Timothy jones profile pictureTimothy jones
11:22 11 Dec 25
Great test centre would told advise going there staff very helpful traing excelent
Shane Parker profile pictureShane Parker
11:58 05 Dec 25
Renewed my acs with Craig and Steve. What a great team, completely put me at ease. The lady on reception who's name I didn't get was lovely too!
Will definetely be visiting again! 🙂
Sam Lawford profile pictureSam Lawford
08:47 27 Nov 25
I attended for my initial commercial gas training which was at first a bit daunting but I was met with a friendly and knowledgeable team which made the experience a lot easier. Will definitely be attending again and would highly recommend.
Dale nurse profile pictureDale nurse
14:24 25 Nov 25
Excellent training centre all staff very honest and helpfull, I will only use this place for my training and would highly recommend.
Ash Muntaquim profile pictureAsh Muntaquim
14:27 21 Oct 25
Attend my ACS re-assement for the 2nd here as well as other courses over the years. Brilliant training centre and amazing staff. Can't recommend it more. Thanks again guys
Peter profile picturePeter
14:04 24 Sep 25
Been going here for around 15 years, Craig and the team know their stuff, it's a really welcoming and relaxing centre, will be attending again when ready.