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ACS Domestic Gas Re-assessment Level 3 - Course

GCS Training
Level 3
Tycoch
Two to three days

Telephone: 01792 284400   Email: training@gcs.ac.uk

Overview

This course is designed for existing Gas Safe engineers who need to resit their qualifications.

This is a mandatory five year renewal, which if not completed will result in removal from the Gas Safe register.

The categories on offer for renewal are:

  • CCN1
  • CENWAT
  • CKR1
  • HTR1
  • MET1

The categories can also be delivered as a single unit, please contact us for more information. 

Key information

Potential candidates must hold an existing ACS certificate for the categories they wish to renew.

The assessment can be taken up to six months prior to the expiry date on the certificate, and still honour the original expiry date.

If more than 12 months have lapsed after the expiry date, the candidate will have to resit the initial ACS assessment.

Candidates can decide whether to carry out only the assessment, which will be two days, or an optional day’s training which is available if requested.

Candidates have the opportunity to upskill in other areas of the gas industry and add categories they currently do not hold. This could include LPG and Commercial Gas qualifications.

Holding an ACS qualifications allows an opportunity to transfer skills into the OFTEC oil industry.

ACS Re-asessment £750

Funding opportunities available subject to meeting criteria.

PLA: Free if earning less than set salary cap (please contact for details)

Skills and Talent: £75 per category. Example CCN1 and CENWAT £150

ACS Assessment Domestic Re assessment - Umbrella Code - S and T
Course code: SG1101 ST4
08/12/2025
Tycoch
3 days
8.30 - 17.00
£375
ACS Assessment Domestic Re assessment - Umbrella Code - S and T
Course code: SG1101 ST5
05/01/2026
Tycoch
3 days
8.30 - 17.00
£375
ACS Assessment Domestic Re assessment - Umbrella Code - S and T
Course code: SG1101 ST6
02/02/2026
Tycoch
3 days
8.30 - 17.00
£375
ACS Assessment Domestic Re assessment - Umbrella Code - S and T
Course code: SG1101 ST7
02/03/2026
Tycoch
3 days
8.30 - 17.00
£375
ACS Assessment Domestic Re assessment - Umbrella Code - S and T
Course code: SG1101 ST8
30/03/2026
Tycoch
3 days
8.30 - 17.00
£375
ACS Assessment Domestic Re assessment - Umbrella Code - S and T
Course code: SG1101 ST9
27/04/2026
Tycoch
3 days
8.30 - 17.00
£375
ACS Assessment Domestic Re assessment - Umbrella Code - S and T
Course code: SG1101 ST10
18/05/2026
Tycoch
3 days
8.30 - 17.00
£375
ACS Assessment Domestic Re assessment - Umbrella Code - S and T
Course code: SG1101 ST11
08/06/2026
Tycoch
3 days
8.30 - 17.00
£375
ACS Assessment Domestic Re assessment - Umbrella Code - S and T
Course code: SG1101 ST12
13/07/2026
Tycoch
3 days
8.30 - 17.00
£375