Required certification · Ireland
RGI (Registered Gas Installer)
Ireland's legal register of gas installers; domestic and, from 1 September 2026, non-domestic gas works
Market position
The Registered Gas Installer (RGI) Scheme is the register the Commission for Regulation of Utilities (CRU) requires for gas installers in Ireland, under the Electricity Regulation Act 1999 as amended by the Energy (Miscellaneous Provisions) Act 2006. The CRU has appointed Safe Energy Ireland, owned by SGS Ireland Limited, as the Safety Supervisory Body that runs it. From 1 September 2026 it is illegal for anyone who is not an RGI to carry out domestic or non-domestic gas works (S.I. No. 106/2026).
Ireland-specific note
RGIs need at least a GID qualification or equivalent, valid insurance and a paid annual subscription, and carry a yearly ID card numbered Rxxxx. They must issue a Declaration of Conformance (Completion) Certificate for gas works. Installers doing non-domestic or LAV gas work must add those categories to their registration.
Pros
- + Registration is the legal requirement for gas work in Ireland, so it opens the whole market
- + Public register lets customers check an installer
- + Published fees and a clear route for non-domestic and LAV categories
Cons
- − Annual subscription plus a once-off application fee
- − Qualification and insurance requirements must be met and kept up
- − Non-domestic work since 1 September 2026 needs the extra category on your registration
Typical Ireland pricing
Application fee €119.37 once-off; annual subscription €334.25 per RGI, €95.51 per trainee and €124.14 for company registration; all plus VAT, annual fee due by 31 January
Why this matters for Ireland trades
Since 1 September 2026 it is illegal for anyone who is not a Registered Gas Installer to carry out domestic or non-domestic gas works (S.I. No. 106/2026), and the CRU says Safe Electric registration for electrical contractors is the law; Safe Energy Ireland runs both schemes for the CRU. Principal contractors deduct RCT at 0%, 20% or 35% from subcontractors’ payments and file through ROS. The Irish payroll tools listed here say they send payroll submissions to Revenue and handle My Future Fund auto-enrolment. The statutory Construction Industry Register Ireland (CIRI) is not yet mandatory: the CIF says applications open during 2027, and its Voluntary Construction Register runs until then.
Irish trades vendor selection is shaped by statutory registration (RGI for gas, Safe Electric for electrical contractors), Revenue payroll reporting under PAYE Modernisation, the My Future Fund auto-enrolment pension scheme that started on 1 January 2026, Relevant Contracts Tax (RCT) on payments to construction subcontractors, and SEAI’s Registered Contractor List for grant-funded home energy upgrades.
Frequently asked
Is RGI (Registered Gas Installer) a good fit for Ireland trades?
The Registered Gas Installer (RGI) Scheme is the register the Commission for Regulation of Utilities (CRU) requires for gas installers in Ireland, under the Electricity Regulation Act 1999 as amended by the Energy (Miscellaneous Provisions) Act 2006. The CRU has appointed Safe Energy Ireland, owned by SGS Ireland Limited, as the Safety Supervisory Body that runs it. From 1 September 2026 it is illegal for anyone who is not an RGI to carry out domestic or non-domestic gas works (S.I. No. 106/2026). RGIs need at least a GID qualification or equivalent, valid insurance and a paid annual subscription, and carry a yearly ID card numbered Rxxxx. They must issue a Declaration of Conformance (Completion) Certificate for gas works. Installers doing non-domestic or LAV gas work must add those categories to their registration.
What does RGI (Registered Gas Installer) cost in Ireland?
Application fee €119.37 once-off; annual subscription €334.25 per RGI, €95.51 per trainee and €124.14 for company registration; all plus VAT, annual fee due by 31 January. Pricing and availability can change by region; confirm current Ireland pricing on the vendor's site before committing.