Gas metering ACS covering installation, exchange, removal and commissioning of domestic and commercial meters, plus the conversion route to full gas competence.
Gas Metering ACS Training Courses
For gas engineers specialising in meter work, from domestic exchange through to full commercial metering competence.
Choose which gas metering course you'd like to complete

Domestic Natural Gas Meter Installer Course for ACS competencies CMA1 & MET1 Training Course

CMA/CESP to CCN1 with CENWAT Managed Learning Programme

CMA1 / 3 With MET1 Gas Meter Exchange Initial Training Course

CMA1 / 3 with MET1 Gas Meter Exchange Reassessment Course

Non Domestic Diaphragm Gas Meter Training Course (MET4)

Domestic Gas Meter Installation Training Package (limited scope)
Compare the gas metering courses.
Not sure which metering route fits your role? Compare the initial assessments, renewals and conversion programmes.
Still unsure which course is right for you?
Speak to an adviserBuild a career on the meter.
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Metering Courses
New to gas?
Start with our new entrant gas engineer packages.
View new entrant gas courseRenewing your core ACS?
Book your domestic ACS renewal alongside LPG.
View domestic ACS coursesSpecialise in meters. Qualify. Renew. Progress.
Metering is a career in its own right, and it connects back to the wider gas trade. We deliver initial assessment, five-yearly renewal, and the conversion programme that takes metering operatives through to full CCN1 competence.
- CMA1/3, MET1 and MET4 assessment
- Conversion route to full domestic gas competence
- Metering rigs at our training centres
Gas metering courses explained.
Working on meters? These answers explain the metering routes and how they connect to full gas competence.
Both are core elements but they need to be paired with the relevant appliance module, most commonly MET1 for domestic meters. CMA1 is the broader option if your work takes you into non-domestic premises, and it is also accepted as an underpinning qualification for other modules such as MET4 non-domestic diaphragm meters.
Our CMA1/3 with MET1 course can be delivered against either core, so you take the one that matches the work you do.
Smart meter installation is a separate route with its own qualifications and registration, so see our smart meter courses if you are installing communicating meters for an energy supplier.
It is a managed learning programme rather than a single assessment, so it is delivered over a longer period.
Which route you take depends on timing. If your certificate is still in date or expired less than 12 months ago, you can take the CMA1/3 with MET1 reassessment. If it expired more than 12 months ago, you must take the initial assessment route instead.
You can be reassessed up to six months early without losing any validity, as the remaining time carries over onto your new certificate. Bring your existing ACS certificates with you as evidence on the day, and if you are unsure which route applies, speak to our team before booking.
Which categories you need depends on whether the meters are domestic or non-domestic. Operatives working for a supplier or a meter asset manager usually work under their employer's registration rather than their own.
For example, the Non Domestic Diaphragm Gas Meter Training Course (MET4) is priced at £310 + VAT.
We also offer finance and pay-in-instalments options, so speak to our team about the best route for you.
Need help choosing the right gas metering course?
Speak to our team and we'll help you choose between initial assessment, five-yearly renewal and the conversion route to full gas competence.