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 Dublin?

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 Dublin 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.

Internal wall insulation installers in Dublin

455 companies on SEAI's register say they do internal wall insulation in Dublin. Only work by a registered company gets the SEAI grant.

187 are based in Dublin; the other 268 cover it from elsewhere.
The grant for a semi-detached house is €3,500. SEAI’s middle price last year was €9,843.
Get SEAI’s grant approval before any work starts. SEAI does not pay for work that began first.
Get three written quotes for the same job. This list is not a ranking.

Insulation boards fixed to the outside walls of a terrace mid-job, meter boxes hanging clear of the wall. — Insulation boards fixed to the walls of a terrace mid-job. Photographed in Hull, England.
Garrick Close, Kingston upon Hull: bungalow renovations, November 2023 · Hullian111 · CC BY-SA 4.0

See your grants for wall insulation, and what you’d pay

Check my home

About 10 seconds. See your numbers first, then get quotes if you want them.

Based in Dublin

187 of them, from SEAI's register (read 25 September 2026). Not an order of merit. Published figure

Bord Gais Energy LtdOne Stop ShopAttic insulationCavity wall insulationExternal wall insulationHeat pumpHeating controlsInternal wall insulationSolar hot waterSolar panelWindow and doorNationwide · SEAI no. 14183 · WebsiteBased in Dublin.
House 2 Home Retrofit LtdOne Stop ShopAttic insulationCavity wall insulationExternal wall insulationHeat pumpHeating controlsInternal wall insulationSolar hot waterWindow and doorNationwide · SEAI no. 15918 · WebsiteBased in Dublin.
Lough ProjectsOne Stop ShopAttic insulationCavity wall insulationExternal wall insulationHeat pumpHeating controlsInternal wall insulationSolar hot waterWindow and doorBased in Dublin · serves Dublin and Leinster · SEAI no. 17674 · WebsiteBased in Dublin.
Moston Construction LtdOne Stop ShopAttic insulationCavity wall insulationExternal wall insulationHeat pumpHeating controlsInternal wall insulationSolar hot waterWindow and doorNationwide · SEAI no. 16068 · WebsiteBased in Dublin.
Absolute Acrylics LtdAttic insulationExternal wall insulationInternal wall insulationBased in Dublin · serves Dublin, Leinster, Munster and Connacht · SEAI no. 10542Based in Dublin.
AGI Construction LtdAttic insulationInternal wall insulationWindow and doorNationwide · SEAI no. 19843Based in Dublin.
Alan Bramble Construction LtdAttic insulationInternal wall insulationBased in Dublin · serves Dublin and Leinster · SEAI no. 18166Based in Dublin.
All Gas Heating and Plumbing ServicesAttic insulationHeating controlsInternal wall insulationSolar hot waterBased in Dublin · SEAI no. 10022Based in Dublin.
All Water Services & Plumbing LtdAttic insulationHeat pumpInternal wall insulationBased in Dublin · SEAI no. 17847Based in Dublin.
Allied Irish Property LtdAttic insulationInternal wall insulationWindow and doorBased in Dublin · serves Dublin, Leinster, Munster and Ulster · SEAI no. 20162Based in Dublin.
Allwood Carpentry & Construction LtdAttic insulationInternal wall insulationBased in Dublin · SEAI no. 16131Based in Dublin.
Alphamac Limited T/A Platinum ServicesAttic insulationInternal wall insulationBased in Dublin · serves Dublin and Leinster · SEAI no. 17161Based in Dublin.
Alpine Sunrooms LtdAttic insulationExternal wall insulationHeating controlsInternal wall insulationBased in Dublin · serves Dublin and Leinster · SEAI no. 14112Based in Dublin.
ANEIS Ltd T/A AN External Insulation SpecialistAttic insulationExternal wall insulationInternal wall insulationBased in Dublin · serves Dublin and Leinster · SEAI no. 15718Based in Dublin.
Ap Eco Building & RenovationExternal wall insulationInternal wall insulationNationwide · SEAI no. 20076Based in Dublin.
Arkwood Construction LtdAttic insulationInternal wall insulationBased in Dublin · serves Dublin and Leinster · SEAI no. 13752Based in Dublin.
Arnon ConstructionAttic insulationExternal wall insulationInternal wall insulationBased in Dublin · SEAI no. 12720Based in Dublin.
Asendia Ltd T/A Cascade GroupAttic insulationInternal wall insulationBased in Dublin · SEAI no. 15323Based in Dublin.
Atfar Construction LtdAttic insulationInternal wall insulationBased in Dublin · SEAI no. 13388Based in Dublin.
Auro Naes Ltd T/A Roesavin ConstructionAttic insulationInternal wall insulationNationwide · SEAI no. 15820Based in Dublin.
AVM Construction LtdAttic insulationExternal wall insulationInternal wall insulationBased in Dublin · serves Dublin and Leinster · SEAI no. 18142Based in Dublin.
AVP Building Services LtdAttic insulationInternal wall insulationBased in Dublin · serves Dublin and Leinster · SEAI no. 14074Based in Dublin.
Bearcon Industrial LimitedAttic insulationInternal wall insulationBased in Dublin · serves Dublin and Leinster · SEAI no. 18315Based in Dublin.
Big Partitions And Ceilings LtdAttic insulationInternal wall insulationBased in Dublin · serves Dublin and Leinster · SEAI no. 20163Based in Dublin.
Bluebuild Renewables LtdAttic insulationExternal wall insulationHeat pumpHeating controlsInternal wall insulationWindow and doorBased in Dublin · serves Dublin, Leinster and Ulster · SEAI no. 17110Based in Dublin.
Borcon LtdAttic insulationInternal wall insulationBased in Dublin · serves Dublin and Leinster · SEAI no. 19401Based in Dublin.
Brannock Construction LtdAttic insulationInternal wall insulationBased in Dublin · SEAI no. 17491Based in Dublin.
Brian O Sullivan Building Contractor LtdAttic insulationInternal wall insulationBased in Dublin · SEAI no. 15390Based in Dublin.
Brickwell Building LtdAttic insulationInternal wall insulationBased in Dublin · serves Dublin and Leinster · SEAI no. 15847Based in Dublin.
Brookmont Construction & DesignAttic insulationInternal wall insulationBased in Dublin · serves Dublin and Leinster · SEAI no. 19893Based in Dublin.
Buildit Home Builder LtdAttic insulationInternal wall insulationBased in Dublin · serves Dublin and Leinster · SEAI no. 18222Based in Dublin.
Butler Contractors LtdAttic insulationInternal wall insulationBased in Dublin · serves Dublin and Leinster · SEAI no. 13574Based in Dublin.
C Clarke Construction Ltd T/A Clarke Home ImprovemAttic insulationHeating controlsInternal wall insulationBased in Dublin · serves Dublin and Leinster · SEAI no. 16221Based in Dublin.
C.A.C Plumbing LtdAttic insulationHeat pumpHeating controlsInternal wall insulationBased in Dublin · serves Dublin and Leinster · SEAI no. 13229Based in Dublin.
Caracon LimitedAttic insulationExternal wall insulationInternal wall insulationBased in Dublin · SEAI no. 17711Based in Dublin.
Castlestone Construction BV LtdAttic insulationExternal wall insulationInternal wall insulationWindow and doorBased in Dublin · serves Dublin and Leinster · SEAI no. 17513Based in Dublin.
CCB Building Company Ltd T/A Oak Ridge BuildersAttic insulationInternal wall insulationBased in Dublin · serves Dublin and Leinster · SEAI no. 10217Based in Dublin.
Cedarwalk ConstructionAttic insulationInternal wall insulationBased in Dublin · serves Dublin and Leinster · SEAI no. 10931Based in Dublin.
Charwood Developments LtdAttic insulationInternal wall insulationBased in Dublin · SEAI no. 13192Based in Dublin.
Ciocan Construction LtdAttic insulationExternal wall insulationHeating controlsInternal wall insulationSolar hot waterNationwide · SEAI no. 16609Based in Dublin.
Cjk Building & Maintenance Contracting LtdAttic insulationInternal wall insulationBased in Dublin · serves Dublin and Leinster · SEAI no. 18297Based in Dublin.
CKF Interiors & InsulationAttic insulationExternal wall insulationInternal wall insulationWindow and doorBased in Dublin · serves Dublin and Leinster · SEAI no. 13815Based in Dublin.
Clancon Build LtdAttic insulationHeat pumpInternal wall insulationBased in Dublin · serves Dublin and Leinster · SEAI no. 13440Based in Dublin.
Clanforce LimitedAttic insulationInternal wall insulationBased in Dublin · SEAI no. 15091Based in Dublin.
Comfort Living LimitedAttic insulationExternal wall insulationInternal wall insulationNationwide · SEAI no. 16909Based in Dublin.
Conex Development LtdAttic insulationInternal wall insulationBased in Dublin · serves Dublin and Leinster · SEAI no. 17214Based in Dublin.
Constructive Attic Conversions LtdAttic insulationInternal wall insulationBased in Dublin · SEAI no. 11588Based in Dublin.
Creative Builders LtdAttic insulationInternal wall insulationBased in Dublin · SEAI no. 11773Based in Dublin.
D Donohoe Construction LimitedAttic insulationInternal wall insulationWindow and doorBased in Dublin · serves Dublin and Leinster · SEAI no. 10941Based in Dublin.
D.M.C. ElectricalAttic insulationInternal wall insulationBased in Dublin · serves Dublin and Leinster · SEAI no. 19788Based in Dublin.
Dabrena Properties LtdAttic insulationInternal wall insulationBased in Dublin · serves Dublin, Leinster and Ulster · SEAI no. 14822Based in Dublin.
Dalmoy LimitedAttic insulationInternal wall insulationBased in Dublin · serves Dublin, Leinster, Munster and Connacht · SEAI no. 18206Based in Dublin.
Dampco Services LtdAttic insulationInternal wall insulationBased in Dublin · serves Dublin and Leinster · SEAI no. 17616Based in Dublin.
Darcy Bros. LtdAttic insulationInternal wall insulationBased in Dublin · serves Dublin and Leinster · SEAI no. 12590Based in Dublin.
Della InteriorsInternal wall insulationBased in Dublin · serves Dublin and Leinster · SEAI no. 20155Based in Dublin.
Delta Build DevelopmentAttic insulationExternal wall insulationInternal wall insulationBased in Dublin · serves Dublin and Leinster · SEAI no. 20170Based in Dublin.
Derek Griffin LTD T/A A-rated building servicesAttic insulationExternal wall insulationInternal wall insulationWindow and doorBased in Dublin · SEAI no. 15196Based in Dublin.
Dkm Build Ltd Trading As MoebuildAttic insulationInternal wall insulationBased in Dublin · SEAI no. 18281Based in Dublin.
Docon Developments LtdAttic insulationHeat pumpInternal wall insulationWindow and doorBased in Dublin · SEAI no. 19419Based in Dublin.
Dorsull Construction LtdAttic insulationInternal wall insulationBased in Dublin · serves Dublin and Leinster · SEAI no. 17675Based in Dublin.
DP Building and Carpentry LtdAttic insulationInternal wall insulationBased in Dublin · SEAI no. 14731Based in Dublin.
Dublin All Trades Building ServicesAttic insulationExternal wall insulationInternal wall insulationBased in Dublin · serves Dublin, Leinster, Munster and Connacht · SEAI no. 14090Based in Dublin.
Dunluce ConstructionAttic insulationInternal wall insulationBased in Dublin · SEAI no. 18295Based in Dublin.
Eco Pro InsulationAttic insulationExternal wall insulationInternal wall insulationNationwide · SEAI no. 19384Based in Dublin.
Eco Thermal HomesAttic insulationExternal wall insulationInternal wall insulationNationwide · SEAI no. 15726Based in Dublin.
Efficient Building Upgrades LtdAttic insulationInternal wall insulationBased in Dublin · SEAI no. 17698Based in Dublin.
EitasAttic insulationHeat pumpHeating controlsInternal wall insulationWindow and doorNationwide · SEAI no. 18336Based in Dublin.
EMM Construction LimitedAttic insulationInternal wall insulationBased in Dublin · SEAI no. 13166Based in Dublin.
Energy Upgrade Home Improvements LtdAttic insulationHeat pumpHeating controlsInternal wall insulationBased in Dublin · serves Dublin and Leinster · SEAI no. 18122Based in Dublin.
Equinox Construction LtdAttic insulationExternal wall insulationInternal wall insulationBased in Dublin · serves Dublin and Leinster · SEAI no. 17729Based in Dublin.
Expert Residential PropertyLtd T/A Expert PropertyAttic insulationExternal wall insulationHeat pumpHeating controlsInternal wall insulationWindow and doorBased in Dublin · serves Dublin and Leinster · SEAI no. 17866Based in Dublin.
EZ BuildAttic insulationHeating controlsInternal wall insulationBased in Dublin · serves Dublin and Connacht · SEAI no. 14960Based in Dublin.
Fior Insulation & Fire ProtectionAttic insulationExternal wall insulationInternal wall insulationWindow and doorBased in Dublin · SEAI no. 17564Based in Dublin.
Fitzsimons InsulationsAttic insulationInternal wall insulationBased in Dublin · serves Dublin and Leinster · SEAI no. 10117Based in Dublin.
Forma Design & Build LtdAttic insulationInternal wall insulationNationwide · SEAI no. 19954Based in Dublin.
Frank Murphy Construction LtdAttic insulationInternal wall insulationBased in Dublin · SEAI no. 15655Based in Dublin.
G & D Construction Projects LtdAttic insulationExternal wall insulationInternal wall insulationBased in Dublin · serves Dublin and Leinster · SEAI no. 17487Based in Dublin.
Gavin Design & Build LtdAttic insulationInternal wall insulationBased in Dublin · serves Dublin and Leinster · SEAI no. 14457Based in Dublin.
GB Plumbing & HeatingAttic insulationHeating controlsInternal wall insulationSolar hot waterBased in Dublin · serves Dublin and Leinster · SEAI no. 15106Based in Dublin.
Gen 6 Projects LtdAttic insulationInternal wall insulationBased in Dublin · SEAI no. 20097Based in Dublin.
GK Building ServicesInternal wall insulationSolar hot waterWindow and doorBased in Dublin · SEAI no. 15240Based in Dublin.
Glebelands Construction LtdAttic insulationInternal wall insulationBased in Dublin · SEAI no. 13266Based in Dublin.
Green Haven Contracts LtdAttic insulationInternal wall insulationBased in Dublin · SEAI no. 12963Based in Dublin.
Green Sheep Insulation LtdAttic insulationInternal wall insulationBased in Dublin · serves Dublin and Leinster · SEAI no. 16133Based in Dublin.
GT Buran Buildings LtdAttic insulationInternal wall insulationBased in Dublin · SEAI no. 20120Based in Dublin.
Hamkel Holdings Ltd / SolthermAttic insulationExternal wall insulationInternal wall insulationNationwide · SEAI no. 16587Based in Dublin.
Harrington Hbrs LtdAttic insulationInternal wall insulationBased in Dublin · serves Dublin, Leinster, Munster and Connacht · SEAI no. 17683Based in Dublin.
High Modern Construction LtdAttic insulationInternal wall insulationBased in Dublin · serves Dublin and Leinster · SEAI no. 17648Based in Dublin.
High Spec Contracts LtdAttic insulationInternal wall insulationBased in Dublin · serves Dublin and Leinster · SEAI no. 20110Based in Dublin.
Hoar Rock Construction LtdAttic insulationExternal wall insulationInternal wall insulationBased in Dublin · serves Dublin and Leinster · SEAI no. 19967Based in Dublin.
Home Insurance Repairs LtdAttic insulationInternal wall insulationBased in Dublin · SEAI no. 14023Based in Dublin.
House Proud Unique (HPU)Attic insulationExternal wall insulationInternal wall insulationBased in Dublin · serves Dublin and Leinster · SEAI no. 17735Based in Dublin.
Hurley Building Contractors LtdAttic insulationHeating controlsInternal wall insulationBased in Dublin · SEAI no. 12022Based in Dublin.
Iclever ConstructionAttic insulationInternal wall insulationWindow and doorBased in Dublin · serves Dublin and Leinster · SEAI no. 17497Based in Dublin.
Inglotherm LtdAttic insulationExternal wall insulationInternal wall insulationBased in Dublin · serves Dublin and Munster · SEAI no. 17081Based in Dublin.
Inline Construction and Custom Carpentry LtdAttic insulationExternal wall insulationInternal wall insulationBased in Dublin · serves Dublin and Connacht · SEAI no. 17395Based in Dublin.
Innovate Insulation LtdAttic insulationCavity wall insulationInternal wall insulationNationwide · SEAI no. 17635Based in Dublin.
Ion Building Contractors LtdAttic insulationInternal wall insulationBased in Dublin · serves Dublin and Leinster · SEAI no. 16698Based in Dublin.
Iroko Events And Construction LimitedAttic insulationInternal wall insulationBased in Dublin · SEAI no. 18071Based in Dublin.
J Callanan Construction LtdAttic insulationInternal wall insulationBased in Dublin · serves Dublin and Leinster · SEAI no. 17129Based in Dublin.
J Dunphy Carpentry & Construction LimitedAttic insulationHeating controlsInternal wall insulationBased in Dublin · SEAI no. 10247Based in Dublin.
J Sheeran Building LimitedAttic insulationInternal wall insulationBased in Dublin · SEAI no. 20074Based in Dublin.
J&R Renovation Services Ltd T/A Equip-It InteriorAttic insulationHeating controlsInternal wall insulationBased in Dublin · SEAI no. 11898Based in Dublin.
James QuigleyAttic insulationInternal wall insulationWindow and doorBased in Dublin · SEAI no. 17663Based in Dublin.
JK Home Improvements LtdAttic insulationInternal wall insulationBased in Dublin · serves Dublin and Leinster · SEAI no. 16204Based in Dublin.
Joe Kelly T/A Nationwide Window ServicesInternal wall insulationWindow and doorBased in Dublin · serves Dublin and Leinster · SEAI no. 20202Based in Dublin.
John Punch ConstructionAttic insulationInternal wall insulationBased in Dublin · serves Dublin and Leinster · SEAI no. 17758Based in Dublin.
Jonathan Reilly Construction LimitedAttic insulationInternal wall insulationBased in Dublin · serves Dublin and Leinster · SEAI no. 17523Based in Dublin.
Kapa Management Services LtdAttic insulationHeat pumpHeating controlsInternal wall insulationSolar hot waterBased in Dublin · SEAI no. 12414Based in Dublin.
Karl Gray Construction LtdAttic insulationInternal wall insulationBased in Dublin · serves Dublin and Leinster · SEAI no. 13845Based in Dublin.
Keane Insulation Contractors LimitedAttic insulationInternal wall insulationBased in Dublin · SEAI no. 17827Based in Dublin.
Kieron McGrath ConstructionAttic insulationHeating controlsInternal wall insulationBased in Dublin · SEAI no. 14198Based in Dublin.
Kieron O Connell Building Services LtdAttic insulationInternal wall insulationBased in Dublin · SEAI no. 15040Based in Dublin.
Kokoon Insulation LtdAttic insulationExternal wall insulationInternal wall insulationWindow and doorBased in Dublin · serves Dublin and Leinster · SEAI no. 15835Based in Dublin.
Kyne Construction Building ContractorsAttic insulationInternal wall insulationBased in Dublin · SEAI no. 16126Based in Dublin.
Machiavelli Holdings LtdAttic insulationInternal wall insulationBased in Dublin · SEAI no. 18106Based in Dublin.
Mark Downey Developments Ta Rosewood ConstructionAttic insulationInternal wall insulationBased in Dublin · serves Dublin and Leinster · SEAI no. 19958Based in Dublin.
Mark Mckenna Carpentry & Building LtdAttic insulationInternal wall insulationBased in Dublin · SEAI no. 18224Based in Dublin.
Martin Moore & Sons LtdAttic insulationInternal wall insulationBased in Dublin · serves Dublin and Leinster · SEAI no. 17801Based in Dublin.
Mc Glynn Construction LtdAttic insulationHeating controlsInternal wall insulationBased in Dublin · SEAI no. 14026Based in Dublin.

The other 67 based in Dublin

Mccabe Construction Dublin Ltd · Mijaro Developments Ltd · Miller And McGovern Construction Ltd · Morrin Building Services Ltd · MSVI Ireland Building Contractors Ltd · MTOB Construction Ltd · Multi Corp Construction Services Ltd · Mz Carpentry And Construction · Narod Insulation Contractors Ltd · Net Zero Design & Build Limited · NewSpace Building Services Ltd · Nicolae Rus · Notrom Ltd · Nuhaus Ltd · O B Contractors Ltd · O S Construction Ltd · Old Court Construction · Omnia Retrofit Construction Ltd · Pat Nolan Building Services · Paul Collins Construction Ltd · Paul O Reilly Builder Ltd T/A Top Build · Philip Loughran Construction Ltd · Piaras Enterprises Ltd T/A Green Energy Homes · Powell Insulations Ltd · Primabuild Ltd · Principal Construction LTD · Pro Walls Ltd · Professional Carpentry Solutions · Property Repair Guys 365 Ltd · R & U Company Ltd. · Rennova Construction Ltd · RH Construction Ltd · Rio Ents Ltd ta A-Rate · Robert Doyle Eco Build Ltd · Rock Construction Ltd · Rocnua Limited · Rosehill Construction Ltd · Salix Construction Ltd · SBN Solid Home Ltd · Scanform1 Ltd · Sean Haughton Ltd · Sean Paul Construction Ltd · Sema Construction Limited · Sirius Construction Ltd · Smart Carpentry Ltd · Solid Build Construction · Sovereign Finishes Limited · Star Construction · Stephen Slater · Stonewave Construction Ltd · STS Building Services · Supreme Window Installation Co. Ltd · TDEM Construction Ltd · Ted & Lloyd Ltd T/A Tell Construction · Temple Woods Construction Ltd · Timahoe Construction T/A Leinster Property Service · Togala Construction Limited · Townlink Construction Ltd T/A Ecolink · Tsm Contracting Limited · Tus Nua Building Services Ltd · Ultimate Vision Building Services T/A Ultra Build · Usher Insulations Ltd · Vital Construction Limited · Vitas And Company Ltd · Warm Walls Insulation Ltd · WCB Construction Ltd · WDJ Construction Ltd

Also cover Dublin from elsewhere (268)

These told SEAI they cover the province Dublin 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’s page. OSS = One Stop Shop.

Activ8 Energies (OSS) · Ashgrove Engineering Ltd T/A Ashgrove Renewables (OSS) · Aspen Eco Power (OSS) · Bayview Contracts Ltd (OSS) · Breffni Insulation Ltd (OSS) · Churchfield Home Services (OSS) · Cooper Insulation Ltd. (OSS) · Electric Ireland Superhomes (OSS) · Energlaze Home Energy Upgrades (OSS) · Energyfix (OSS) · Envirobead Ltd. (OSS) · Greenwatt Ltd (OSS) · Home Comfort Retrofits Ltd (OSS) · Integrate Home Energy Upgrades Limited (OSS) · Kilgobbin Castle Holdings Ltd t/a Insulex (OSS) · Kingdom Installation Ltd (OSS) · Kingspan Insulation Ltd (OSS) · Kore Retrofit Ltd (OSS) · Larkrock (OSS) · Munster External Wall Insulation T/A SE Systems (OSS) · OHK Energy LTD (OSS) · Retrofit Design Ltd (OSS) · Retrofit Energy Ireland (OSS) · SSE Airtricity Energy Services Ltd (OSS) · WiEnergy (OSS) · Abc Construction · Absolute Insulation Ltd · Airpacks T/A Kore Insulation · Alc Construction Limited · Alex Building Services · All In Insulation · All Weather External Insulation Ltd · All Weather Insulation · Anthony Brady Plumbing Limited · Anthony Coughlan Heating & Plumbing TA C&S Construction Services · Antone Briody Construction Ltd · AO Electrical And Solar Ltd · Apex Engineering · Athena Enterprises LTD T/A The Power House · Aurora Construction Ltd · Ballinderry Developments Ltd T/A Rebuild · Ballyhogan Plumbing Services Ltd · BCD Contracting Ltd · Bernard McKeown Plastering · BF Construction & Blackwater Developments LTD · Blackwell Consultancy T/A Blackwell Contracts · Bnm Construction Services Ltd · BOC Building And Carpentry Ltd T/A BOC Build · Bradfields Developments Limited · Brayton Homes · Breen Brothers Builders Ltd · Breen Heating and Plumbing Ltd · Brian Clancy Building Services · Bromur Energy Ltd · Budget Renovations · Bunclody Insulations · Byrne Power Construction Ltd · C.D.M. Contracts Ltd · C&G Wall Construction Ltd · CAG CAE Ltd T/A Green Oak Energy Solutions · Cando Engineering Ltd · Capital Building Services · Carew Construction Ltd · Castelfield Construction Limited · Castlebawn Construction · Cellulose Insulation Ltd · CJH Construction · CK Energy Management Solutions (EMS) Ltd t/a ENCON · Clane Building Works · Clar ICH Ltd · Cleary Carpentry & Building Contractors · Colm And Michael Dunne · Conneally Painting & Sons Trading As Conneally Group · Cool To Be Warm Insulation T/A Kevin Hoey Carpentr · Corbally Homes Ltd · Creedon Construction · Crystal Complete Building Ltd · Cunningham Mechanical Services Ltd · CW Xterior Solutions Ltd · D Carry Construction · DADN Construction Ltd · Dalvac Systems Limited · Damien Babington & Sons Ltd · Damien Ryan Contracts Ltd · David Flaherty Construction LTD · DBS Project Management Ltd · DC Energy Solutions · Decarb Contracts Ltd · Declan Buggy LTD · Declan O Brien Construction Limited · Derchil Limited t/a CosiHomes · Des Somers Construction Limited · DL Carty Ltd · DMT Renewables Ltd · Dncf · Drumore Construction Ltd · Ds Fallon · Duey Brothers Ltd · Dunne Drylining Ltd · Eco Home Insulation · Eco Smart External Insulation Ltd · Eco Warmer Homes · Ecoinsulationplus.Ie · Ecowise Insulation Ltd · Edward Eccleston · Eirgreen · EJP Concrete Structures Ltd · Elem Construction Ltd T/A Inish Contracts · Elitetherm · Emerald Coatings Ltd · Energy Retrofit Ireland · Energysmart Construction Ltd · Evertherm Ltd T/A Annalee Energy Ltd · Finlay EcoFit Tullamore Ltd · Finnegan & O'Neill Limited · Floelen Construction Ltd · Forristeen Construction · FS Plumbing & Heating Ltd · Gar Insulation Ltd · Gary Smyth Construction And Services Limited · Gavin Slattery Cons. · Gcf Investments Limited · Grainger Energy Solutions Ltd · Grangeboyne Property Developments Ltd · Green - Lux Construction Ltd · Green Air Technologies Ltd · Greenland Eco Construction Ltd · Harrington Insulations Limited · Heco Construction Ltd · Holden Brothers Insulations · Home Building Solutions T/A HBS Elegant build Ltd · Home Works Insulation · Homeology Ltd · Hometherm Insulation Ltd · Horvath Developments Limited · Hugh Nevin · Hughes and Co External Insulation · J & J Builders Ltd · J Shaw Carpentry Ltd · Jacob Insulation Limited · Jager Construction Ltd · James Doran & Son Ltd · James Phelan Construction & Carpentry Ltd · JC Mellon Building Contractors Ltd · JJR Insulation Ltd · JMC Wood Design Ltd · Jody Davis Building LTD · Joe Dunican Plumbing And Heating Ltd · John Dunne Construction Ltd T/A Dunne Better Build · John Ryan Construction Ltd. · Johnathan Timoney T/A Rendpro Ltd · JWDC Ltd T/A JW Construction · K K Home & Building Services Ltd · K&D Developments (Sligo) Ltd. · Kanto Property Services · Kcj Management Ta Build57 Carpentry And Construction · Kelly Insulation Heating & Plumbing · Kg Future Homes Limited · Killincarrig Developments Limited · Kilmallock Developments Ltd · Kilsarn Warmer Homes · Kingscourt Insulation Ltd · Kiwi Construction · L&D Eco Building Limited Ta Buildeco Ltd · LDS INTERIORS LTD · Leech Brothers Builders Ltd · Leetherm Insulation Ltd. · Leitrim Warmer Homes CLG · Leonard Price Developments Ltd · Lewins Construction · Luca Line Limited TA Luca Line Services · M&W Fire Solutions Ltd · Madden Developments Ltd · Mardoc Holdings Limited · Mark Charles Construction And Carpentry · Mark Gilleece · Markaye Contracts Ltd · Matthew Rice T/A Mattie Rice Carpentry · Mc Menamin Building Contractors Ltd · McArdle Building Contractors Ltd · McCaher Construction Ltd. · Mcgarrell & Florin H Construction Ltd · Mclaughlin Taylor Drylining Roi Ltd · McMorrow Renewables Limited · Meegan Insulations · Melmc Construction Ltd · Metro Utilities Ltd T/A Metro Developments · Michael O Reilly Plastering & Wall Insulation · Midland Suspended Ceilings Ltd · Midlands East Construction · Milltown Passive Builds Ltd · MJ Burke Construction Ltd · MJS Eco Limited · Moneyhill Construction Ltd · MS Plastering Contractor · NCE Insulation T/A Secure and Fix It Enterprises · NE Energy Efficient Homes Ltd · Newgrove Carpentry Ltd · Nick Raymond Construction Ltd · Noel Leahy Carpentry & Building Services Limited · O Leary Insulation · O'Loughlin Construction · O'Toole Plastering · ORian Construction Ltd · Oriel Insulations · Orielview Construction Ltd · Ozone Insulation Ltd · P & A Fox Construction Ltd · P Shannon Building & Civil Engineering Ltd · P.T.M Carpentry & Building Ltd · Paddy Brennan Builders · Paddy Mc Hugh Building Ltd · Padraig Brady Carpentry Limited · Parker Construction Ltd · Pat Flannery · Patrick Dempsey · PCS Ventures Ltd T/A Green Leaf Carpentry · Phelan Construction · Platinum Insulation · Poly Coating and Sealing Ltd · Pouldoon Construction Ltd · PPGIH Business Ltd t/a Premier Irish Homes · Premier Insulations · Professional Solid Insulation · Rathcorbally Construction Ltd · Redfern Construction Ltd · Rend Master Ltd · Renova · Renual Construction Limited · Restore Building Company Ltd · Retrofit Energy Ireland One Stop Shop Ltd · Rodney Brady Contracting Ltd · Romac Acoustics Ltd · Room2build Ltd · Ryan And Kennedy · Ryan Spray Foam · SCMS Mechanical Services Ltd · Seahill Construction · Seamus O'Reilly · Shale Construction Limited · Shane Gavin Carpentry Ltd · Shane Prendergast Construction Ltd · Shepherd Contracting Ltd · Slade Construction & Building Ltd · Sloane Plastering LTD · SLP Westport · Smyth Project Management Ltd. T/A Teknabuild · Solar Direct Ltd. · Solaregy T/A Sola · Solid Insulation Systems Ireland Ltd · Spreadwell Construction Ltd · Ss Drylining & Plastering Ltd · Superior Insulations Ltd · Sustainable Warmth Ltd · Tamburah Limited · Task Property Contracting Ltd · Tirconaill Contracts Ltd T/A Mc Taggart Insulation · Tkcarpentry · TLI Group Ltd T/A Transmission Links Ireland Ltd · TOC Construction Ltd · Tomasz Rulak T/A Tombet Building · Treacon Carpentry & Building Services Ltd · Urban Craft Ltd · Verde Remediation Services Ltd · Vincent Bergin & Sons Limited · Wallace Contracting Ltd · White Knight Property Services Ltd · William Maguire T/A Therma - Rend

See your grants and what you’d pay

Four questions about your home, then your numbers. Get quotes from registered contractors if you want them.

Check my home

The detail

How Dublin compares

Internal wall insulation installers who say they work in each county, from SEAI's register. Published figure

Figure 1Published figure

455 internal wall insulation installers say they work in Dublin; the median county has 323

Dublin is 12th of 26. The most list Wicklow (462); the fewest, Donegal (196). 29 One Stop Shops list Dublin.

Dublin455
The median county323
Most: Wicklow462
Fewest: Donegal196

Each bar counts companies on SEAI's register that list the county for internal wall insulation. Many firms tick a whole province, so counts move in regional steps. A count is choice, not capacity. Registration is paperwork, not a review of their work.

Sources: SEAI home energy, One Stop Shop and solar registers, read 25 Sep 2026

What it costs, and what the grant pays

National figures, not Dublin ones: SEAI does not publish prices by county. SEAI rule

On a semi-detached house, SEAI's middle price of €9,843 less the grant leaves €6,343 to pay.

Before you sign

Four things SEAI tells homeowners to do.

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 →

Questions people ask

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 Dublin?: 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 Dublin 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.

Listed on SEAI’s public registers on 25 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. On this list? Get homeowner plans to quote for

Updated 5 October 2026 · grants checked 10 Oct 2026 · register read 25 Sep 2026 · How we know · Corrections