Monaghan gas installers
RGI Registered Gas Installers in Monaghan: From Monaghan Town to Ballybay
Every RGI registered gas installer in Co. Monaghan, drawn from the public register with registration numbers shown. Search by area, verify on rgi.ie, and contact one directly, no booking fees, no sign-up, no lead forms.
The directory
Browse RGI Gas Installers in Monaghan
All gas work in Ireland must legally be done by an RGI registered installer. Verify any registration number on rgi.ie before booking.
Mullagh Heating & Plumbing
Mullagh Heating Plumbing
Inniskeen, Monaghan
Murray Plumbing and Heating
Oliver Murray
Monaghan, Monaghan
OHK Energy Ltd
Oliver Hughes
Castleblayney, Monaghan
Solar Direct Ltd
Seamus Mooney
Castleblayney, Monaghan
Joseph Loughlin
Monaghan, Monaghan
G/2 Technical Services Ltd
Gerard McCrarren
Castleblaney A75 DY80, Monaghan
Raymond Duffy
Carrickmacross, Monaghan
Finnegan & O'Neill Ltd
Finnegan & Ltd
Castleblayney, Monaghan
Stephen O'Farrell
Castleblabey, Monaghan
Boiler Hub Ltd
Barry Ward
Monaghan, Monaghan
N McKenna Gas Contractors Ltd
N McKenna Ltd
Co. Monaghan, Monaghan
KMN Plumbing & Heating Ltd
Kieran McNally
Monaghan, Monaghan
Concra Heating & Plumbing
Fearghal Duffy
Castleblaney, Monaghan
Local knowledge
Gas in Monaghan: What to Know
Towns on the Gas Networks Ireland grid in Monaghan use natural gas, while rural areas off the grid rely on LPG or oil.
Homes in Monaghan moving off oil or an old gas boiler may qualify for SEAI support, including the heat pump grant of up to €12,500 where the home is suitable.
Whatever the fuel, any notifiable gas work in Monaghan must be carried out by an RGI registered installer, and oil work by an OFTEC registered technician. Line up a registered installer before you need one urgently.

Areas covered
Gas Installers in Every Part of Monaghan
5 towns and areas across Co. Monaghan, plus the surrounding areas. Open a town for local plumbers and gas work near you.
- Clones
- Castleblayney
- Carrickmacross
- Ballybay
- Monaghan Town
Gas installers listed here cover Monaghan Town and the surrounding towns, villages and townlands across Co. Monaghan.
Monaghan at a glance
RGI, Costs and Off-Grid Gas
RGI Registration
Every installer listed for Monaghan is on the RGI register. Gas work by an unregistered person is illegal and voids home insurance. Always confirm the number on rgi.ie.
What RGI coversWhat Gas Work Costs
- Combi boiler fitted€2,200–3,200
- Annual boiler service€80–120
- Emergency call-out€80–180
- Gas safety cert€80–150
Off the Gas Grid
5 installers in Monaghan are LPG certified as well as natural gas. For LPG, confirm the installer holds LPG certification, not just RGI registration.
Natural gas vs LPGCommon questions
Gas Installers in Monaghan: Common Questions
How do I find an RGI gas installer near me in Monaghan?
Browse the directory on this page and narrow it to your own town or area, then contact an installer directly. There are 13 RGI registered gas installers listed across Co. Monaghan, each with their registration number shown so you can verify it on rgi.ie before you book.
What is RGI registration and why does it matter?
RGI (Registered Gas Installer) is the statutory register for gas work in Ireland. Under the Energy (Miscellaneous Provisions) Act 2006 it is an offence for anyone who is not RGI registered to carry out notifiable gas work such as a boiler installation or a gas appliance connection. Registration is your assurance the installer is legally authorised and can certify the work.
How much does gas boiler work cost in Monaghan?
As a 2026 guide, a like-for-like gas combi replacement in Monaghan runs about €2,200 to €3,200, a boiler service €80 to €120, and an emergency call-out €80 to €180 depending on the hour. Always get the call-out fee and a written quote before the work starts.
Do I legally need an RGI installer in Monaghan?
Yes. Any gas boiler installation, gas appliance connection or gas pipework in Monaghan must legally be carried out by an RGI registered installer. Using an unregistered person is illegal, voids most home insurance, and means the work cannot be certified.
What is the difference between natural gas and LPG in Monaghan?
Towns on the Gas Networks Ireland grid use natural gas; rural areas off the grid typically use LPG or oil. 5 of the installers listed here in Monaghan are certified for LPG as well as natural gas.
How do I verify an installer's RGI number?
Ask for the RGI registration number and check it on the official register at rgi.ie, which lets you search by number. Confirm the entry is current rather than expired before booking. A genuine registered installer will have no problem giving you the number.
What is a Declaration of Conformance?
It is the completion certificate a registered installer must issue for notifiable gas work. You need it for insurance, a property sale or a mortgage drawdown, so ask for it on the day the work is completed rather than accepting that it will follow later.
What should I do if I smell gas in Monaghan?
Do not use switches or naked flames, open windows and doors, turn off the gas at the meter if safe, and ring the Gas Networks Ireland emergency line on 1800 20 50 50 before calling anyone else. Only an RGI registered installer should investigate and repair the fault.
Keep reading
Gas Guides for Monaghan Homeowners
Find a Gas Installer in Monaghan
Browse the full RGI register above, filter to your own area, and open a listing to verify the number and contact an installer directly. Free to use, no sign-up.
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