Welcome to TomKat
ACS gas training and assessment made clearer.
ACS reassessments, initial assessments, managed learning programmes and practical tools for gas engineers across the UK.
- Small classes
- Family run
- Practical training

Trusted by gas engineers across Greater Manchester
Not sure which course you need?
Find your route without guessing.
Training and assessment
Choose your route
Tap a card for prices, course details and the next available route.
ACS ReassessmentRenew your existing gas qualifications.CCN1 · CPA1 · CKR1 · HTR1 · CENWAT
Initial AssessmentTaking ACS for the first time.Packages include VAT and certification
Additional QualificationsExtend your skills and categories.LPG · G3 · Water RegulationsAir Source Heat Pump pathway →
Managed Learning ProgrammeNew to the gas industry.Training · Portfolio · ACS route
Award-winning innovation
LCL Innovation Award 2026
Recognised for developing innovative digital tools and learning solutions for the gas industry.
Testimonials
What our customers say
“Just wanted to say a great big thank you to you both for training me up and achieving my ACS. I can’t stop smiling.”
“TomKat is the best place to train. Derek is always kind and helpful, and all the staff treat you like family.”
“TomKat Gas Training has been a major part in my gas training and continued support.”
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