RGI Registered Gas Installer · Co. Kerry
Brendan O'SullivanGas Installer in Co. Kerry
Brendan O'Sullivan is an RGI registered gas installer in Kerry, certified for Natural Gas work covering boiler installation, servicing, appliance connections and gas pipework across Co. Kerry.
Who they are
About Brendan O'Sullivan
Brendan O'Sullivan is a registered gas installer based at Kells, Kerry, listed on the public RGI register. RGI registration is the statutory requirement for gas work in Ireland under the Energy (Miscellaneous Provisions) Act 2006, which makes it an offence for anyone who is not a Registered Gas Installer to carry out designated gas works. Send an enquiry using the form on this page, or call directly, both are free to use.
Brendan O'Sullivan is RGI registered for Natural Gas work in Kerry, covering all notifiable gas installations and appliance connections. The registration number R3419 can be independently verified on the public register at rgi.ie at any time, and it is worth confirming the entry is current rather than expired before booking.
RGI registration R3419. Verify this number free on the public register at rgi.ie before any gas work begins.

Kerry is a predominantly rural county where mains gas coverage is limited largely to Tralee. Much of Kerry, including Killarney, Kenmare, Dingle, Listowel and the rural peninsula communities, relies on LPG or oil for space and water heating. This makes LPG certification particularly important for installers operating across Kerry, as a significant proportion of domestic gas work in the county involves LPG rather than natural gas.
Get in touch
Contact Brendan O'Sullivan
Describe the gas job once and it goes straight to Brendan O'Sullivan, free, with no sign-up and no middleman. Prefer to call? Use the number below.
Call 087 9385913RGI registered · Reg R3419 · Verify at rgi.ie
Send Brendan O'Sullivan an enquiry
Describe the job once. It goes straight to them, free.
Free, no sign-up. Sent directly to Brendan O'Sullivan.

What they cover
Notifiable Gas Work in Kerry
Tralee is the main centre with natural gas network access in Kerry. Killarney, Listowel, Kenmare, Dingle and most of the county rely on LPG or oil for domestic heating.
As an RGI registered installer, Brendan O'Sullivan is legally authorised to carry out all notifiable gas work in Co. Kerry. The following jobs require a registered installer under Irish law:
- Gas boiler installation and like-for-like boiler replacement
- Gas boiler servicing, annual maintenance and fault diagnosis
- Gas cooker, hob and range connection and disconnection
- Gas fire and gas water heater installation
- Gas pipework extension, modification and pressure testing
- New gas connections to the Gas Networks Ireland supply
- Gas appliance repair and safety checks
On completion of any notifiable gas work a registered installer must issue a Declaration of Conformance, the completion certificate. It is what you produce for insurance, a property sale or a mortgage drawdown, so ask for it on the day rather than accepting that it will follow.
On the ground
Gas Installers Across Co. Kerry
Gas installers based in Co. Kerry typically serve customers across the county, covering Tralee, Killarney, Listowel, Kenmare, Dingle, Cahersiveen, Killorglin and Castleisland. There are 25 RGI registered gas installers listed for Co. Kerry on this site.
For a boiler replacement or any larger gas job, it is worth getting two or three written quotes before committing. Browse all 25 gas installers in Kerry, or see boiler installation costs in Kerry for current price ranges.

Worth checking
What to Check First
Before any gas work begins, there are a few things worth confirming regardless of which installer you use.
Verify the registration number
On rgi.ie. It takes under two minutes and confirms the installer is currently registered, not simply registered at some point in the past.
Get a written quote
That breaks down labour, parts and VAT separately. Gas boiler installation in Co. Kerry typically runs €2,200 to €3,200 for a like-for-like combi replacement, and emergency call-outs €80 to €180 depending on the hour.
Confirm public liability insurance
And ask for the certificate before work begins.
Request the Declaration of Conformance
On completion. A registered installer is legally required to issue one for notifiable gas work.
If the job is an oil boiler rather than gas, note that oil sits outside the RGI scheme entirely, so ask about OFTEC oil-firing certification instead. More on what RGI registration covers.
Gas work carried out by an unregistered person is illegal in Ireland and voids most home insurance policies. If you smell gas, ring the Gas Networks Ireland emergency line on 1800 20 50 50 before calling anyone else.
More Gas Installers in Kerry
Browse the full RGI register for Co. Kerry, filter by area and gas type, and contact an installer directly.
See all gas installers in Kerry