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.

Attic insulation installers in Dublin

490 companies on the SEAI register are based in or serve Dublin 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 Dublin

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

Bord Gais Energy LtdOne Stop Shop
Attic insulationCavity wall insulationExternal wall insulationHeat pumpHeating controlsInternal wall insulationSolar hot waterSolar panelWindow and door
Nationwide · SEAI no. 14183 · Website
Based in Dublin.
House 2 Home Retrofit LtdOne Stop Shop
Attic insulationCavity wall insulationExternal wall insulationHeat pumpHeating controlsInternal wall insulationSolar hot waterWindow and door
Nationwide · SEAI no. 15918 · Website
Based in Dublin.
Lough ProjectsOne Stop Shop
Attic insulationCavity wall insulationExternal wall insulationHeat pumpHeating controlsInternal wall insulationSolar hot waterWindow and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 17674 · Website
Based in Dublin.
Moston Construction LtdOne Stop Shop
Attic insulationCavity wall insulationExternal wall insulationHeat pumpHeating controlsInternal wall insulationSolar hot waterWindow and door
Nationwide · SEAI no. 16068 · Website
Based in Dublin.
Above All Building Construction Ltd
Attic insulationExternal wall insulation
Based in Dublin · SEAI no. 18190
Based in Dublin.
Absolut Construction & Renovation Ltd
Attic insulation
Based in Dublin · SEAI no. 19366
Based in Dublin.
Absolute Acrylics Ltd
Attic insulationExternal wall insulationInternal wall insulation
Based in Dublin · serves Dublin, Leinster, Munster and Connacht · SEAI no. 10542
Based in Dublin.
AGI Construction Ltd
Attic insulationInternal wall insulationWindow and door
Nationwide · SEAI no. 19843
Based in Dublin.
Ailesbury Warm Homes Ltd T/A Warmhomes.ie
Attic insulationExternal wall insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 17749
Based in Dublin.
Alan Bramble Construction Ltd
Attic insulationInternal wall insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 18166
Based in Dublin.
All Gas Heating and Plumbing Services
Attic insulationHeating controlsInternal wall insulationSolar hot water
Based in Dublin · SEAI no. 10022
Based in Dublin.
All Water Services & Plumbing Ltd
Attic insulationHeat pumpInternal wall insulation
Based in Dublin · SEAI no. 17847
Based in Dublin.
Allied Irish Property Ltd
Attic insulationInternal wall insulationWindow and door
Based in Dublin · serves Dublin, Leinster, Munster and Ulster · SEAI no. 20162
Based in Dublin.
Allwood Carpentry & Construction Ltd
Attic insulationInternal wall insulation
Based in Dublin · SEAI no. 16131
Based in Dublin.
Alphamac Limited T/A Platinum Services
Attic insulationInternal wall insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 17161
Based in Dublin.
Alpine Sunrooms Ltd
Attic insulationExternal wall insulationHeating controlsInternal wall insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 14112
Based in Dublin.
ANEIS Ltd T/A AN External Insulation Specialist
Attic insulationExternal wall insulationInternal wall insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 15718
Based in Dublin.
Arkwood Construction Ltd
Attic insulationInternal wall insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 13752
Based in Dublin.
Arthurstown Construction Ltd
Attic insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 17730
Based in Dublin.
Asendia Ltd T/A Cascade Group
Attic insulationInternal wall insulation
Based in Dublin · SEAI no. 15323
Based in Dublin.
Asyl Insulation Limited T/A Foam Pro
Attic insulation
Nationwide · SEAI no. 17786
Based in Dublin.
Auro Naes Ltd T/A Roesavin Construction
Attic insulationInternal wall insulation
Nationwide · SEAI no. 15820
Based in Dublin.
AVM Construction Ltd
Attic insulationExternal wall insulationInternal wall insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 18142
Based in Dublin.
AVP Building Services Ltd
Attic insulationInternal wall insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 14074
Based in Dublin.
Baker & Co Ltd Insulations
Attic insulation
Nationwide · SEAI no. 10134
Based in Dublin.
Bearcon Industrial Limited
Attic insulationInternal wall insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 18315
Based in Dublin.
Best Attic Insulation Trading As Stoneville Ltd
Attic insulation
Based in Dublin · SEAI no. 18201
Based in Dublin.
Big Partitions And Ceilings Ltd
Attic insulationInternal wall insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 20163
Based in Dublin.
Bluebuild Renewables Ltd
Attic insulationExternal wall insulationHeat pumpHeating controlsInternal wall insulationWindow and door
Based in Dublin · serves Dublin, Leinster and Ulster · SEAI no. 17110
Based in Dublin.
Borcon Ltd
Attic insulationInternal wall insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 19401
Based in Dublin.
Brannock Construction Ltd
Attic insulationInternal wall insulation
Based in Dublin · SEAI no. 17491
Based in Dublin.
Brian O Sullivan Building Contractor Ltd
Attic insulationInternal wall insulation
Based in Dublin · SEAI no. 15390
Based in Dublin.
Brickwell Building Ltd
Attic insulationInternal wall insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 15847
Based in Dublin.
Brookmont Construction & Design
Attic insulationInternal wall insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 19893
Based in Dublin.
Buildit Home Builder Ltd
Attic insulationInternal wall insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 18222
Based in Dublin.
Butler Contractors Ltd
Attic insulationInternal wall insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 13574
Based in Dublin.
C Clarke Construction Ltd T/A Clarke Home Improvem
Attic insulationHeating controlsInternal wall insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 16221
Based in Dublin.
C.A.C Plumbing Ltd
Attic insulationHeat pumpHeating controlsInternal wall insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 13229
Based in Dublin.
Caracon Limited
Attic insulationExternal wall insulationInternal wall insulation
Based in Dublin · SEAI no. 17711
Based in Dublin.
Castlestone Construction BV Ltd
Attic insulationExternal wall insulationInternal wall insulationWindow and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 17513
Based in Dublin.
CCB Building Company Ltd T/A Oak Ridge Builders
Attic insulationInternal wall insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 10217
Based in Dublin.
Cedarwalk Construction
Attic insulationInternal wall insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 10931
Based in Dublin.
Charwood Developments Ltd
Attic insulationInternal wall insulation
Based in Dublin · SEAI no. 13192
Based in Dublin.
Ciocan Construction Ltd
Attic insulationExternal wall insulationHeating controlsInternal wall insulationSolar hot water
Nationwide · SEAI no. 16609
Based in Dublin.
Cjk Building & Maintenance Contracting Ltd
Attic insulationInternal wall insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 18297
Based in Dublin.
CKF Interiors & Insulation
Attic insulationExternal wall insulationInternal wall insulationWindow and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 13815
Based in Dublin.
Clancon Build Ltd
Attic insulationHeat pumpInternal wall insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 13440
Based in Dublin.
Clanforce Limited
Attic insulationInternal wall insulation
Based in Dublin · SEAI no. 15091
Based in Dublin.
Claxton Plastering And Insulation Ltd
Attic insulationExternal wall insulationInternal wall insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 17902
Based in Dublin.
Complete Insulations and Energy Upgrades Ltd
Attic insulationCavity wall insulationExternal wall insulationHeating controlsInternal wall insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 12529
Based in Dublin.
Conex Development Ltd
Attic insulationInternal wall insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 17214
Based in Dublin.
Constructive Attic Conversions Ltd
Attic insulationInternal wall insulation
Based in Dublin · SEAI no. 11588
Based in Dublin.
Creative Builders Ltd
Attic insulationInternal wall insulation
Based in Dublin · SEAI no. 11773
Based in Dublin.
D Donohoe Construction Limited
Attic insulationInternal wall insulationWindow and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 10941
Based in Dublin.
D Harris Heating and Plumbing
Attic insulationHeat pumpHeating controlsSolar hot water
Based in Dublin · serves Dublin and Leinster · SEAI no. 10259
Based in Dublin.
D.M.C. Electrical
Attic insulationInternal wall insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 19788
Based in Dublin.
Dabrena Properties Ltd
Attic insulationInternal wall insulation
Based in Dublin · serves Dublin, Leinster and Ulster · SEAI no. 14822
Based in Dublin.
Dalmoy Limited
Attic insulationInternal wall insulation
Based in Dublin · serves Dublin, Leinster, Munster and Connacht · SEAI no. 18206
Based in Dublin.
Dampco Services Ltd
Attic insulationInternal wall insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 17616
Based in Dublin.
Darcy Bros. Ltd
Attic insulationInternal wall insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 12590
Based in Dublin.
Delta Build Development
Attic insulationExternal wall insulationInternal wall insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 20170
Based in Dublin.
Derek Griffin LTD T/A A-rated building services
Attic insulationExternal wall insulationInternal wall insulationWindow and door
Based in Dublin · SEAI no. 15196
Based in Dublin.
Dkm Build Ltd Trading As Moebuild
Attic insulationInternal wall insulation
Based in Dublin · SEAI no. 18281
Based in Dublin.
Docon Developments Ltd
Attic insulationHeat pumpInternal wall insulationWindow and door
Based in Dublin · SEAI no. 19419
Based in Dublin.
Dorsull Construction Ltd
Attic insulationInternal wall insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 17675
Based in Dublin.
DP Building and Carpentry Ltd
Attic insulationInternal wall insulation
Based in Dublin · SEAI no. 14731
Based in Dublin.
Dublin All Trades Building Services
Attic insulationExternal wall insulationInternal wall insulation
Based in Dublin · serves Dublin, Leinster, Munster and Connacht · SEAI no. 14090
Based in Dublin.
Dublin Total Retrofit Solutions
Attic insulationWindow and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 19409
Based in Dublin.
Dunluce Construction
Attic insulationInternal wall insulation
Based in Dublin · SEAI no. 18295
Based in Dublin.
Eco Pro Insulation
Attic insulationExternal wall insulationInternal wall insulation
Nationwide · SEAI no. 19384
Based in Dublin.
Eco Thermal Homes
Attic insulationExternal wall insulationInternal wall insulation
Nationwide · SEAI no. 15726
Based in Dublin.
Eco Works Ltd
Attic insulationInternal wall insulationWindow and door
Based in Dublin · SEAI no. 17859
Based in Dublin.
Edwardyna Construction Ltd
Attic insulationExternal wall insulationHeat pumpInternal wall insulationWindow and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 17285
Based in Dublin.
Efficient Building Upgrades Ltd
Attic insulationInternal wall insulation
Based in Dublin · SEAI no. 17698
Based in Dublin.
Eitas
Attic insulationHeat pumpHeating controlsInternal wall insulationWindow and door
Nationwide · SEAI no. 18336
Based in Dublin.
Elm Attic Insulation
Attic insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 10722
Based in Dublin.
EMM Construction Limited
Attic insulationInternal wall insulation
Based in Dublin · SEAI no. 13166
Based in Dublin.
Energy Upgrade Home Improvements Ltd
Attic insulationHeat pumpHeating controlsInternal wall insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 18122
Based in Dublin.
Equinox Construction Ltd
Attic insulationExternal wall insulationInternal wall insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 17729
Based in Dublin.
Expert Residential PropertyLtd T/A Expert Property
Attic insulationExternal wall insulationHeat pumpHeating controlsInternal wall insulationWindow and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 17866
Based in Dublin.
EZ Build
Attic insulationHeating controlsInternal wall insulation
Based in Dublin · serves Dublin and Connacht · SEAI no. 14960
Based in Dublin.
Fior Insulation & Fire Protection
Attic insulationExternal wall insulationInternal wall insulationWindow and door
Based in Dublin · SEAI no. 17564
Based in Dublin.
Fitzsimons Insulations
Attic insulationInternal wall insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 10117
Based in Dublin.
Forma Design & Build Ltd
Attic insulationInternal wall insulation
Nationwide · SEAI no. 19954
Based in Dublin.
Frank Murphy Construction Ltd
Attic insulationInternal wall insulation
Based in Dublin · SEAI no. 15655
Based in Dublin.
Frontline Assist Ltd T/A FA Construction
Attic insulationInternal wall insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 17694
Based in Dublin.
G & D Construction Projects Ltd
Attic insulationExternal wall insulationInternal wall insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 17487
Based in Dublin.
G.V.Services Limited
Attic insulationExternal wall insulationInternal wall insulation
Based in Dublin · serves Dublin, Leinster, Munster and Connacht · SEAI no. 19364
Based in Dublin.
Gavin Design & Build Ltd
Attic insulationInternal wall insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 14457
Based in Dublin.
GB Plumbing & Heating
Attic insulationHeating controlsInternal wall insulationSolar hot water
Based in Dublin · serves Dublin and Leinster · SEAI no. 15106
Based in Dublin.
Gen 6 Projects Ltd
Attic insulationInternal wall insulation
Based in Dublin · SEAI no. 20097
Based in Dublin.
Glebelands Construction Ltd
Attic insulationInternal wall insulation
Based in Dublin · SEAI no. 13266
Based in Dublin.
Green Haven Contracts Ltd
Attic insulationInternal wall insulation
Based in Dublin · SEAI no. 12963
Based in Dublin.
Green Sheep Insulation Ltd
Attic insulationInternal wall insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 16133
Based in Dublin.
GT Buran Buildings Ltd
Attic insulationInternal wall insulation
Based in Dublin · SEAI no. 20120
Based in Dublin.
Hamkel Holdings Ltd / Soltherm
Attic insulationExternal wall insulationInternal wall insulation
Nationwide · SEAI no. 16587
Based in Dublin.
Harrington Hbrs Ltd
Attic insulationInternal wall insulation
Based in Dublin · serves Dublin, Leinster, Munster and Connacht · SEAI no. 17683
Based in Dublin.
High Modern Construction Ltd
Attic insulationInternal wall insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 17648
Based in Dublin.
High Spec Contracts Ltd
Attic insulationInternal wall insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 20110
Based in Dublin.
Hoar Rock Construction Ltd
Attic insulationExternal wall insulationInternal wall insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 19967
Based in Dublin.
Home Insurance Repairs Ltd
Attic insulationInternal wall insulation
Based in Dublin · SEAI no. 14023
Based in Dublin.
House Proud Unique (HPU)
Attic insulationExternal wall insulationInternal wall insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 17735
Based in Dublin.
Hurley Building Contractors Ltd
Attic insulationHeating controlsInternal wall insulation
Based in Dublin · SEAI no. 12022
Based in Dublin.
Iclever Construction
Attic insulationInternal wall insulationWindow and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 17497
Based in Dublin.
Inglotherm Ltd
Attic insulationExternal wall insulationInternal wall insulation
Based in Dublin · serves Dublin and Munster · SEAI no. 17081
Based in Dublin.
Inline Construction and Custom Carpentry Ltd
Attic insulationExternal wall insulationInternal wall insulation
Based in Dublin · serves Dublin and Connacht · SEAI no. 17395
Based in Dublin.
Innovate Insulation Ltd
Attic insulationCavity wall insulationInternal wall insulation
Nationwide · SEAI no. 17635
Based in Dublin.
Inspired Renovations Limited
Attic insulationWindow and door
Based in Dublin · SEAI no. 20164
Based in Dublin.
Insulation Pro
Attic insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 17479
Based in Dublin.
Ion Building Contractors Ltd
Attic insulationInternal wall insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 16698
Based in Dublin.
Iroko Events And Construction Limited
Attic insulationInternal wall insulation
Based in Dublin · SEAI no. 18071
Based in Dublin.
J Callanan Construction Ltd
Attic insulationInternal wall insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 17129
Based in Dublin.
J Dunphy Carpentry & Construction Limited
Attic insulationHeating controlsInternal wall insulation
Based in Dublin · SEAI no. 10247
Based in Dublin.
J Sheeran Building Limited
Attic insulationInternal wall insulation
Based in Dublin · SEAI no. 20074
Based in Dublin.
J&R Renovation Services Ltd T/A Equip-It Interior
Attic insulationHeating controlsInternal wall insulation
Based in Dublin · SEAI no. 11898
Based in Dublin.
James Quigley
Attic insulationInternal wall insulationWindow and door
Based in Dublin · SEAI no. 17663
Based in Dublin.
JH Carpentry
Attic insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 20008
Based in Dublin.
John Punch Construction
Attic insulationInternal wall insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 17758
Based in Dublin.
Jonathan Reilly Construction Limited
Attic insulationInternal wall insulation
Based in Dublin · serves Dublin and Leinster · SEAI no. 17523
Based in Dublin.
Kapa Management Services Ltd
Attic insulationHeat pumpHeating controlsInternal wall insulationSolar hot water
Based in Dublin · SEAI no. 12414
Based in Dublin.

The other 74 based in Dublin

Karl Gray Construction Ltd · Keane Insulation Contractors Limited · Kieron McGrath Construction · Kieron O Connell Building Services Ltd · Kokoon Insulation Ltd · Kyne Construction Building Contractors · Lisaderg Construction Ltd · Lovinsulation Ltd. · Machiavelli Holdings Ltd · Mark Downey Developments Ta Rosewood Construction · Mark Mckenna Carpentry & Building Ltd · Martin Moore & Sons Ltd · Mc Glynn Construction Ltd · Mccabe Construction Dublin Ltd · Meadow Vale Building Services · 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 · National Retrofit & Construction Services Ltd · Net Zero Design & Build Limited · NewSpace Building Services 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 · Property Repair Guys 365 Ltd · R & U Company Ltd. · RH Construction Ltd · Rio Ents Ltd ta A-Rate · Robert Doyle Eco Build Ltd · Rock Construction Ltd · Rocnua Limited · Rosehill Construction Ltd · SBN Solid Home Ltd · Scanform1 Ltd · Sean Haughton Ltd · Sean Paul Construction Ltd · Sirius Construction Ltd · Smart Carpentry Ltd · Solid Build Construction · Sovereign Finishes Limited · Star Construction · Stephen H Heating & Plumbing Ltd · 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 Construction Ltd · Ultimate Vision Building Services T/A Ultra Build · Vitas And Company Ltd · Vos Premium Services Ltd · WCB Construction Ltd · WDJ Construction Ltd

Also cover Dublin from elsewhere (296)

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 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 · Advanced Attic Insulation Ltd · Airpacks T/A Kore Insulation · Alc Construction Limited · Alex Building Services · All In Insulation · All Weather Insulation · Alpha Insulation Ltd T/A Western 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 · Ardvark Insulation Ltd · Ashmark Civil And Utilities · Asset Heating & Solar · Athena Enterprises LTD T/A The Power House · Attic Floors and Ladders · Aurora Construction Ltd · Ballinderry Developments Ltd T/A Rebuild · Ballyhogan Plumbing Services Ltd · 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 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 · CK Energy Management Solutions (EMS) Ltd t/a ENCON · Clane Building Works · Clar ICH Ltd · Cleare Home Improvements & Insulation · Cleary Carpentry & Building Contractors · Clioma House Ltd · Colm And Michael Dunne · Cool To Be Warm Insulation T/A Kevin Hoey Carpentr · Corkery Alu-Cast Enterprises Ltd · Creedon Construction · Crystal Complete Building Ltd · Cunningham Mechanical Services Ltd · CW Xterior Solutions Ltd · DADN Construction Ltd · Dalvac Systems Limited · Damien Babington & Sons Ltd · Damien Ryan Contracts Ltd · Danestown Developments Limited · David Flaherty Construction LTD · David Kelly Ta East Mayo Energy Solutions · DBS Project Management Ltd · DC Energy Solutions · Decarb Contracts Ltd · Declan Buggy LTD · Declan O Brien Construction Limited · Derchil Limited t/a CosiHomes · Dermot Gately Carpentry and Construction · Des Somers Construction Limited · DL Carty Ltd · DMT Renewables Ltd · Dncf · Drumore Construction Ltd · Ds Fallon · Duey Brothers Ltd · Dunne Drylining Ltd · Eamonn Finn · Eco Home Insulation · Eco Smart External Insulation Ltd · Ecotec Insulation Ltd · Ecotech Contracts IRI Ltd · Ecowise Insulation Ltd · Ecowrap · 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 · Eyres North East Insulations · Fabian Anton · Fagan Crossmolina Limited · Farrelly Property Holdings · Finlay EcoFit Tullamore Ltd · Floelen Construction Ltd · Forristeen Construction · FS Plumbing & Heating Ltd · Gallen Insulation Ltd · Gar Insulation Ltd · Gary Smyth Construction And Services Limited · Gavin Slattery Cons. · Grainger Energy Solutions Ltd · Grangeboyne Property Developments Ltd · Green - Lux Construction Ltd · Green Air Technologies Ltd · Harrington Insulations Limited · Heco Construction Ltd · HLE Construction Limited · 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 · Ian Clarke · Ifoam Insulation Ltd · Instant Eco Homes Ltd · J & J Builders Ltd · J Shaw Carpentry Ltd · Jager Construction 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 · Jonathan O'Connor · 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 · Keating Insulation Ltd · Kelly Insulation Heating & Plumbing · Kg Future Homes Limited · Killincarrig Developments Limited · Kilmallock Developments Ltd · Kilsarn Warmer Homes · Kingscourt Insulation Ltd · Kiwi Construction · 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 · Lyons Insulations Ltd · M&W Fire Solutions Ltd · MacKessy Construction Ltd · Madden Developments Ltd · Magical Reconstruction Ltd · Mal Property Maintenance · Mannion Passive House Builders Ltd · Mark Charles Construction And Carpentry · Mark Gilleece · Markaye Contracts Ltd · Matthew Rice T/A Mattie Rice Carpentry · May-Ard Developments Ltd · Mc Elligott Heating & Plumbing Limited · Mc Menamin Building Contractors Ltd · McArdle Building Contractors Ltd · McCaher Construction Ltd. · McCormack Insulation · Mcgarrell & Florin H Construction Ltd · Mclaughlin Taylor Drylining Roi Ltd · McMorrow Renewables Limited · Meegan Insulations · Melmc Construction Ltd · Metro Insulation Ltd · Metro Utilities Ltd T/A Metro Developments · MG Insulation · Midland Suspended Ceilings Ltd · Milltown Passive Builds Ltd · Miral Building Contractors Ltd · MJ Burke Construction Ltd · MJS Eco Limited · Moran Retrofit Solutions · MS Plastering Contractor · NCE Insulation T/A Secure and Fix It Enterprises · NE Energy Efficient Homes Ltd · Newgrove Carpentry Ltd · Niatara Construction Ta Apollo Insulation · Nick Raymond Construction Ltd · Noel Leahy Carpentry & Building Services Limited · O Leary Insulation · O'Loughlin Construction · 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 · Palmaris Contracts Ltd · Parker Construction Ltd · Pat Flannery · Patrick Dempsey · PC Civils Limited · 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 · 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 · Romof Builders Limited · Room2build Ltd · Ryan And Kennedy · Ryan Spray Foam · SBG Developments Ltd t/a Daly Construction · Seahill Construction · Seamus O'Reilly · Shale Construction Limited · Shamrock Insulation · Shane Gavin Carpentry Ltd · Shane Prendergast Construction Ltd · Shepherd Contracting Ltd · Slade Construction & Building Ltd · SLP Westport · Smyth Project Management Ltd. T/A Teknabuild · Solaregy T/A Sola · Solaris Green Energy · Solid Insulation Systems Ireland Ltd · South East Insulations · SprayFoam Direct Distribution Ltd. · Ss Drylining & Plastering Ltd · Superior Insulations Ltd · Sustainable Warmth Ltd · T Insulations · Ta Patrick Mcknight Roofing · Tamburah Limited · Task Property Contracting Ltd · Teeling Contracting T/A Compass · Tekton Contruction Ltd · Thermotech Retrofit Ltd · Thermowise Insulations Limited · 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 · Trident Insulation · U - Team Limited · Urban Craft Ltd · Verde Remediation Services Ltd · Vincent Bergin & Sons Limited · Wallace Contracting Ltd · Warmcore Homes Ltd · White Knight Property Services Ltd · William Maguire T/A Therma - Rend

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 Dublin 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 Dublin

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 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.

Other work in Dublin

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.