South Mark Plumbing: RGI registered gas installer in Waterford
South Mark Plumbing is listed on the Gas Networks Ireland register of Registered Gas Installers (RGI) in Waterford, based at Waterford. RGI registration is the legal certification required to carry out gas work in Ireland under the Gas (Interim) (Regulation) Act 2002. All gas installations, boiler replacements, appliance connections and gas pipe work must be carried out by an RGI registered installer.
South Mark Plumbing is certified for both Natural Gas and LPG work in Waterford, covering a wider range of properties than natural-gas-only installers. The registration number R2764 can be independently verified on the public Gas Networks Ireland register at rgi.ie at any time.
Waterford city and county has a growing gas installer base following Gas Networks Ireland's expansion of the network across the south east. Waterford city itself has good natural gas coverage, while outlying towns and rural areas of the county rely on LPG or oil. Demand for gas boiler installation and replacement is strong in the city, with a mix of domestic and light commercial work across the county.
Gas services in Waterford
Waterford city and nearby towns including Tramore and Dungarvan are connected to the natural gas network, while rural areas of the county use LPG or oil for heating.
As an RGI registered installer, South Mark Plumbing is legally authorised to carry out all notifiable gas work in Waterford. The following jobs require an RGI registered installer under Irish law:
- Gas boiler installation and like-for-like boiler replacement
- Gas boiler servicing and annual maintenance
- Gas cooker, hob and range connection and disconnection
- Gas fire and gas heater installation
- Gas pipework extension, modification and pressure testing
- New gas connections to Gas Networks Ireland supply
- Gas appliance repair and fault diagnosis
- LPG tank connection, regulation and appliance fitting
After completion of any notifiable gas work, an RGI registered installer is required to issue a Certificate of Completion. This document is essential for insurance purposes, property sales and mortgage drawdowns. Always request this certificate when gas work is finished.
LPG installation in Waterford
South Mark Plumbing holds LPG certification in addition to Natural Gas registration, making them suitable for properties in Waterford that are not connected to the national gas grid. LPG (liquefied petroleum gas) is the common alternative fuel in parts of Waterford and throughout Munster where mains gas is unavailable — particularly in rural townlands, off-grid farms and older housing stock outside the main towns.
LPG work requires separate certification from standard natural gas registration. If you are on an LPG supply in Waterford and need a boiler installation, appliance connection or tank fitting, confirm that the installer holds LPG certification as well as the standard RGI registration before booking.
Booking gas work in Waterford: what to check
Before any gas work begins in Waterford, there are three things every homeowner should do regardless of which installer they use:
- Verify the RGI registration number on rgi.ie. This takes under two minutes and confirms the installer is currently registered, not just previously registered.
- Get a written quote that breaks down labour, parts and VAT separately. Gas boiler installation in Waterford typically costs €2,200–€3,200 for a like-for-like combi replacement. Emergency call-outs in Munster range from €80–€180 depending on time of day.
- Request a Certificate of Completion when the job is finished. An RGI installer is legally required to provide this for all notifiable gas work. Do not accept that this will be provided later.
Gas work carried out by an unregistered person is illegal in Ireland. Unregistered gas work also voids most home insurance policies and cannot be certified, which creates serious problems when selling the property. Always use an RGI registered installer.
Other gas installers in Waterford
There are 27 RGI registered gas installers listed for Waterford on plumbersinireland.ie. Installers in Waterford typically cover Waterford city, Tramore, Dungarvan, Lismore, Kilmacthomas and Carrick-on-Suir. If you want to get multiple quotes before booking, browse the full list and use the quote cart to contact several installers at once.
Browse all 27 gas installers in Waterford →