Do I have to use one of these companies to get the grant?

Yes. SEAI only pays a grant on work done by a company on its register, and the company claims it on your behalf. Work done by anyone else is not covered, however good it is.

How many quotes should I get in Monaghan?

Three, from companies registered for the same job, and ask each for a written breakdown. Quotes for the same house often differ by thousands because they include different work, not because one is dearer.

Is this list in any order of merit?

No. Companies based in Monaghan come first, then the ones that travel to it, then One Stop Shops, then alphabetical. Being on the register means the paperwork is in order, not that the work is good.

Attic insulation installers in Monaghan

213 companies on the SEAI register are based in or serve Monaghan for attic insulation (register as of 8 September 2026).

Gloved hands pressing mineral-wool insulation between the timbers of a roof. — Unrecognizable worker insulating with stone wool · Erik Mclean · Pexels License · Photo credits

Based in Monaghan

12 of them. Sorted by what they are registered for, then by name — this is not an order of merit.

OHK Energy LTDOne Stop Shop
Attic insulationCavity wall insulationExternal wall insulationHeat pumpHeating controlsInternal wall insulationSolar hot waterSolar panelWindow and door
Nationwide · SEAI no. 11118 · Website
Based in Monaghan.
Cunningham Mechanical Services Ltd
Attic insulationHeat pumpHeating controlsInternal wall insulationSolar hot water
Based in Monaghan · serves Dublin, Leinster and Ulster · SEAI no. 11190
Based in Monaghan.
Damien Babington & Sons Ltd
Attic insulationInternal wall insulation
Based in Monaghan · serves Dublin, Leinster and Ulster · SEAI no. 18180
Based in Monaghan.
Ds Fallon
Attic insulationExternal wall insulationInternal wall insulation
Based in Monaghan · serves Dublin, Leinster, Connacht and Ulster · SEAI no. 17872
Based in Monaghan.
Gray Construction & Design Ltd
Attic insulationInternal wall insulation
Based in Monaghan · serves Ulster · SEAI no. 17979
Based in Monaghan.
Ian Clarke
Attic insulationInternal wall insulation
Based in Monaghan · serves Dublin, Leinster and Ulster · SEAI no. 16936
Based in Monaghan.
McArdle Building Contractors Ltd
Attic insulationInternal wall insulation
Based in Monaghan · serves Dublin, Leinster and Ulster · SEAI no. 11109
Based in Monaghan.
Meegan Insulations
Attic insulationCavity wall insulationExternal wall insulationInternal wall insulation
Based in Monaghan · serves Dublin, Leinster and Ulster · SEAI no. 11511
Based in Monaghan.
Noel Kilpatrick Contruction Ltd
Attic insulationInternal wall insulation
Based in Monaghan · serves Leinster and Ulster · SEAI no. 18040
Based in Monaghan.
Oriel Insulations
Attic insulationInternal wall insulation
Nationwide · SEAI no. 12831
Based in Monaghan.
P Shannon Building & Civil Engineering Ltd
Attic insulationInternal wall insulation
Based in Monaghan · serves Dublin, Leinster and Ulster · SEAI no. 11043
Based in Monaghan.
P.T.M Carpentry & Building Ltd
Attic insulationInternal wall insulation
Based in Monaghan · serves Dublin, Leinster and Ulster · SEAI no. 18139
Based in Monaghan.

Also cover Monaghan from elsewhere (201)

These told SEAI they cover the province Monaghan is in, or listed it among the counties they serve. Ask how far they travel before you go any further. Names only here; each one's full register row is on its own county page. OSS = One Stop Shop.

Activ8 Energies (OSS) · Ashgrove Engineering Ltd T/A Ashgrove Renewables (OSS) · Bayview Contracts Ltd (OSS) · Bord Gais Energy Ltd (OSS) · Breffni Insulation Ltd (OSS) · Churchfield Home Services (OSS) · Cooper Insulation Ltd. (OSS) · Electric Ireland Superhomes (OSS) · Energyfix (OSS) · Envirobead Ltd. (OSS) · Greenwatt Ltd (OSS) · House 2 Home Retrofit Ltd (OSS) · Kingdom Installation Ltd (OSS) · Kingspan Insulation Ltd (OSS) · Kore Retrofit Ltd (OSS) · Moston Construction Ltd (OSS) · Retrofit Design Ltd (OSS) · Retrofit Energy Ireland (OSS) · SSE Airtricity Energy Services Ltd (OSS) · A1 Plumbing & Heating · AB Teague Enterprises Ltd · Abbey View Construction Lmited · Abhaile Carpentry And Construction Ltd · AC Insulation · AGI Construction Ltd · Airpacks T/A Kore Insulation · All In Insulation · Allied Irish Property Ltd · Anthony Brady Plumbing Limited · Anthony Coughlan Heating & Plumbing TA C&S Construction Services · Anthony Quinn Construction Ltd · Antone Briody Construction Ltd · AO Electrical And Solar Ltd · Apex Engineering · Asyl Insulation Limited T/A Foam Pro · Attic Floors and Ladders · Auro Naes Ltd T/A Roesavin Construction · Aurora Construction Ltd · B. Donaghey & Sons · Baker & Co Ltd Insulations · Barry Kiernan Construction Ltd · BCBAL Ltd T/A McGee Insulation · Bio Insulate Ltd · Blackwell Consultancy T/A Blackwell Contracts · Bluebuild Renewables Ltd · Braecon Construction Ltd · Breen Heating and Plumbing Ltd · Brendan Mcgrenaghan Construction · Brendan Sammon Aughnasheelin Ltd · Breslin Construction And Renovation Ltd · Bunnroad Construction · C.D.M. Contracts Ltd · Cando Engineering Ltd · Carl Byrne · Carolan Murphy Ltd · Carrickmaquigley Construction Ltd · Cellulose Insulation Ltd · Ciocan Construction Ltd · Clar ICH Ltd · Clioma House Ltd · Clonmany Builders Limited · Cloonagh Construction Ltd · CMH Carpentry And Construction · Cs Drylining Ltd · CW Xterior Solutions Ltd · D Monagle Drywall Ltd · Daask Build Ltd · Dabrena Properties Ltd · David Kelly Ta East Mayo Energy Solutions · DC Energy Solutions · Decarb Contracts Ltd · Derchil Limited t/a CosiHomes · Derryveagh Contracts Ltd · DMT Renewables Ltd · Donegal Drylinning Ltd · Duey Brothers Ltd · Eamonn Finn · Eco Home Insulation · Eco Pro Insulation · Eco Smart External Insulation Ltd · Eco Thermal Homes · Ecotec Insulation Ltd · Ecotech Contracts IRI Ltd · Ecowise Insulation Ltd · Edward Eccleston · Eiremaintenance.Ie · Eitas · Elem Construction Ltd T/A Inish Contracts · Enda Sean Construction Ltd · Evertherm Ltd T/A Annalee Energy Ltd · Ferm Eng Ltd · Floelen Construction Ltd · Forma Design & Build Ltd · FS Plumbing & Heating Ltd · Galbraith Construction Ltd · Gallen Insulation Ltd · Gavin Tinney Limited · George Gill & Sons Construction Ltd · Gmd Contracts Limited · Gmg Contracts Ltd · Green - Lux Construction Ltd · Green Air Technologies Ltd · Hamkel Holdings Ltd / Soltherm · Home Building Solutions T/A HBS Elegant build Ltd · Inish Mica Repairs Ltd · Inish Stone · Innovate Insulation Ltd · Insulate Ireland · J Shaw Carpentry Ltd · J.Russell Construction Ltd · James Keenan Eco Limited T/A Keenan Eco · JJR Insulation Ltd · JMD Contracts Ltd · John Doherty Construction Ltd · John Grant Construction Ltd · John O'Loughlin & Son Ltd · K K Home & Building Services Ltd · Kelly Construction · Kelly Insulation Heating & Plumbing · Kilsarn Warmer Homes · Kingscourt Insulation Ltd · Laghey Construction Ltd · Laurence Doherty Building Services Ltd · Laurence Mc Colgan Construction Ltd · Leitrim Warmer Homes CLG · M&W Fire Solutions Ltd · MacKessy Construction Ltd · Madden Developments Ltd · Mal Property Maintenance · Mannion Passive House Builders Ltd · Marcalla Limited · Marcoy Ltd · Markaye Contracts Ltd · Masterway Enterprises Ltd · May-Ard Developments Ltd · Mc Elligott Heating & Plumbing Limited · Mc Menamin Building Contractors Ltd · Mc Namee Fabrication & Building Systems Ltd T/A Mc · McCaher Construction Ltd. · McCallion Construction · McGonagle Group Ltd · Mclaughlin Taylor Drylining Roi Ltd · McMorrow Renewables Limited · Melmc Construction Ltd · Metro Insulation Ltd · MG Insulation · Michael Kelly Glebe Builders Ltd · Michael Mc Colgan · Midland Warmer Homes Company Limited · MS Plastering Contractor · Multi Corp Construction Services Ltd · Multistructure Construction Ltd · National Retrofit & Construction Services Ltd · Niatara Construction Ta Apollo Insulation · North West Retrofit · O'Loughlin Construction · Ora Timber Frame · Ozone Insulation Ltd · P & A Drylining Ltd · P Mcgovern & Son Construction Ltd · Paddy Mc Hugh Building Ltd · Paddy Monagle Construction · Padraig Brady Carpentry Limited · Parker Construction Ltd · Paul Doherty Construction Ltd · Peter McKiernan Construction & Engineering · Philip Loughran Construction Ltd · Poly Coating and Sealing Ltd · Premier Insulations · Premier Solutions NW Ltd · Prestige Construction Ventures Ltd · Pro Walls Ltd · Reidy KDE construction Ltd · Rend Master Ltd · Renova · Retrofit Energy Ireland One Stop Shop Ltd · Rio Ents Ltd ta A-Rate · Rmn Developments Ltd · Rodney Brady Contracting Ltd · Romac Acoustics Ltd · S&S Rankin Ltd · SBN Solid Home Ltd · Seamus Friel & Sons Ltd · Seamus O'Reilly · Seamus Sweeney Drylining Ltd · Shamrock Insulation · SLP Westport · Solaregy T/A Sola · Solaris Green Energy · Solid Insulation Systems Ireland Ltd · Sovereign Finishes Limited · Ss Drylining & Plastering Ltd · Superior Insulations Ltd · Sustainable Warmth Ltd · T Insulations · Thermowise Insulations Limited · Tirconaill Contracts Ltd T/A Mc Taggart Insulation · TLI Group Ltd T/A Transmission Links Ireland Ltd · Tomasz Rulak T/A Tombet Building · Tuatha Construction · Verde Remediation Services Ltd

What it costs, and what the grant pays

The grant for a semi-detached house is €1,500. SEAI recorded a middle price of €2,000 for this work last year, which leaves about €500 for you to pay. These are national figures, not Monaghan ones — SEAI does not publish prices by county.

What it costs on a home like yours, and what you are left paying

Before you sign

Wait for your grant approval email before any work starts. SEAI does not pay for work that began before it was approved.
Get at least three quotes, and check each one covers the same job — the cheapest quote is often the one that leaves something out.
Check the company is on the register on the day you sign. Companies join and leave it, and this page is a copy taken on one day.
Get it in writing: what is being done, what it costs, when it starts and when it is finished.

How the application works

Ask up to five of them

Fill in one form, tick who you want to hear from, and we pass your details to those companies and nobody else. It costs nothing and you are under no obligation.

Get attic insulation quotes in Monaghan

Common questions

Do I have to use one of these companies to get the grant?: Yes. SEAI only pays a grant on work done by a company on its register, and the company claims it on your behalf. Work done by anyone else is not covered, however good it is.
How many quotes should I get in Monaghan?: Three, from companies registered for the same job, and ask each for a written breakdown. Quotes for the same house often differ by thousands because they include different work, not because one is dearer.
Is this list in any order of merit?: No. Companies based in Monaghan come first, then the ones that travel to it, then One Stop Shops, then alphabetical. Being on the register means the paperwork is in order, not that the work is good.

Other work in Monaghan

Listed on SEAI’s public registers on 8 September 2026. Being registered is not an endorsement by SEAI or by us. Check the current register on seai.ie before you sign anything. Not affiliated with SEAI.