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 Galway?

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 Galway 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 Galway

315 companies on the SEAI register are based in or serve Galway 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 Galway

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

Airtight Eco Build Ltd
Attic insulationInternal wall insulation
Based in Galway · serves Connacht · SEAI no. 17590
Based in Galway.
Alpha Insulation Ltd T/A Western Insulation
Attic insulationCavity wall insulationInternal wall insulation
Based in Galway · serves Dublin, Leinster, Munster and Connacht · SEAI no. 10737
Based in Galway.
Bartley Heanue Construction
Attic insulation
Based in Galway · serves Connacht · SEAI no. 19404
Based in Galway.
Blackstrand Retrofit Ltd.
Attic insulationHeat pumpInternal wall insulationSolar hot water
Based in Galway · serves Connacht · SEAI no. 17659
Based in Galway.
Bromur Energy Ltd
Attic insulationHeat pumpHeating controlsInternal wall insulation
Based in Galway · serves Dublin, Leinster, Munster and Connacht · SEAI no. 14252
Based in Galway.
Century Retrofit Ltd
Attic insulationExternal wall insulationInternal wall insulation
Based in Galway · serves Leinster, Munster and Connacht · SEAI no. 17797
Based in Galway.
Clai Ard Construction Ltd.
Attic insulationInternal wall insulation
Based in Galway · serves Connacht · SEAI no. 18274
Based in Galway.
Corrib View Construction Ltd
Attic insulationCavity wall insulationInternal wall insulation
Based in Galway · serves Munster and Connacht · SEAI no. 16674
Based in Galway.
CW Xterior Solutions Ltd
Attic insulationExternal wall insulationHeating controlsInternal wall insulation
Nationwide · SEAI no. 15497
Based in Galway.
Dcb Duffy Carpentry & Building Ltd
Attic insulationInternal wall insulation
Based in Galway · serves Connacht · SEAI no. 17880
Based in Galway.
Denrich Developments
Attic insulationInternal wall insulation
Based in Galway · serves Connacht · SEAI no. 17597
Based in Galway.
Diarmuid O'Connell Carpentry Limited
Attic insulationInternal wall insulationWindow and door
Based in Galway · serves Connacht · SEAI no. 20072
Based in Galway.
Dkc Carpentry & Construction Ltd
Attic insulationInternal wall insulation
Based in Galway · serves Connacht · SEAI no. 17824
Based in Galway.
Doorus Construction Ltd
Attic insulationInternal wall insulation
Based in Galway · serves Connacht · SEAI no. 13791
Based in Galway.
Duane Construction Limited
Attic insulationInternal wall insulation
Based in Galway · serves Connacht · SEAI no. 19959
Based in Galway.
E Ansbro Construction LTD
Attic insulationInternal wall insulation
Based in Galway · serves Connacht · SEAI no. 15997
Based in Galway.
Ecowise Insulation Ltd
Attic insulationCavity wall insulationInternal wall insulation
Nationwide · SEAI no. 10080
Based in Galway.
Ely Houseworks Ltd
Attic insulationInternal wall insulation
Based in Galway · serves Connacht · SEAI no. 17722
Based in Galway.
Fahy Insulations Ltd
Attic insulationCavity wall insulationInternal wall insulation
Based in Galway · serves Connacht · SEAI no. 10409
Based in Galway.
Firetech Experts Ltd
Attic insulationInternal wall insulation
Based in Galway · serves Connacht · SEAI no. 10122
Based in Galway.
G & S Construction & Plant Hire Limited
Attic insulationInternal wall insulation
Based in Galway · serves Munster and Connacht · SEAI no. 19797
Based in Galway.
Gleoite Homes Ltd
Attic insulationHeating controlsInternal wall insulation
Based in Galway · serves Connacht · SEAI no. 20182
Based in Galway.
Goodmar Construction Ltd
Attic insulationInternal wall insulation
Based in Galway · serves Connacht · SEAI no. 13843
Based in Galway.
Gr Carpentry Ltd
Attic insulationInternal wall insulation
Based in Galway · serves Connacht · SEAI no. 20144
Based in Galway.
Ian O Donoghue Builders Limited
Attic insulationInternal wall insulation
Based in Galway · serves Connacht · SEAI no. 16677
Based in Galway.
Jf Fordham Construction Ltd
Attic insulationInternal wall insulation
Based in Galway · serves Munster and Connacht · SEAI no. 17851
Based in Galway.
John Joe Faherty
Attic insulationInternal wall insulation
Based in Galway · serves Connacht · SEAI no. 17904
Based in Galway.
Kelly Construction Gort Ltd
Attic insulationInternal wall insulation
Based in Galway · serves Connacht · SEAI no. 11865
Based in Galway.
Kesel Construction Ltd
Attic insulationInternal wall insulation
Based in Galway · serves Munster and Connacht · SEAI no. 18158
Based in Galway.
Kevin Conneely Construction
Attic insulationInternal wall insulation
Based in Galway · serves Connacht · SEAI no. 19372
Based in Galway.
Kilcastle Construction Ltd
Attic insulationInternal wall insulationWindow and door
Based in Galway · serves Connacht · SEAI no. 14448
Based in Galway.
Mac West Construction Ltd
Attic insulationInternal wall insulation
Based in Galway · serves Connacht · SEAI no. 13451
Based in Galway.
Mannion Passive House Builders Ltd
Attic insulation
Nationwide · SEAI no. 11282
Based in Galway.
McCaher Construction Ltd.
Attic insulationExternal wall insulationInternal wall insulation
Nationwide · SEAI no. 17571
Based in Galway.
Michael Plausin
Attic insulationInternal wall insulationWindow and door
Based in Galway · serves Connacht · SEAI no. 18120
Based in Galway.
MJ Burke Construction Ltd
Attic insulationInternal wall insulation
Based in Galway · and 12 other counties · SEAI no. 18241
Based in Galway.
Mjkhomes Galway Ltd
Attic insulationInternal wall insulation
Based in Galway · serves Munster and Connacht · SEAI no. 19405
Based in Galway.
MMED Construction Services Ltd
Attic insulationInternal wall insulation
Based in Galway · serves Connacht · SEAI no. 17753
Based in Galway.
Namloc Const Ltd T/A Coleman Bros Construction
Attic insulationInternal wall insulation
Based in Galway · serves Connacht · SEAI no. 18332
Based in Galway.
Nc Carpentry & Construction Ltd
Attic insulationInternal wall insulation
Based in Galway · serves Munster and Connacht · SEAI no. 19437
Based in Galway.
Nrr Renovations Limited
Attic insulationExternal wall insulationInternal wall insulationWindow and door
Based in Galway · serves Connacht · SEAI no. 20191
Based in Galway.
OCI Insulation
Attic insulationCavity wall insulationExternal wall insulationInternal wall insulation
Based in Galway · serves Connacht · SEAI no. 16611
Based in Galway.
Orm Contractors Ltd
Attic insulationInternal wall insulation
Based in Galway · serves Connacht · SEAI no. 18205
Based in Galway.
Pat Loftus Construction Ltd
Attic insulationInternal wall insulation
Based in Galway · serves Munster and Connacht · SEAI no. 14381
Based in Galway.
PDJ Construction
Attic insulationInternal wall insulation
Based in Galway · serves Connacht · SEAI no. 14970
Based in Galway.
PNA insulation Ltd T/A O'Loghlen Insulation Ltd
Attic insulationCavity wall insulation
Based in Galway · serves Munster and Connacht · SEAI no. 10032
Based in Galway.
Reality Renovations Ltd
Attic insulationInternal wall insulation
Based in Galway · serves Connacht · SEAI no. 18026
Based in Galway.
Solid Insulation Systems Ireland Ltd
Attic insulationExternal wall insulationInternal wall insulationWindow and door
Nationwide · SEAI no. 15485
Based in Galway.
Stephen Doherty
Attic insulationInternal wall insulation
Based in Galway · serves Munster and Connacht · SEAI no. 18068
Based in Galway.
Steve Moylan Limited
Attic insulationExternal wall insulationInternal wall insulation
Based in Galway · serves Connacht · SEAI no. 17909
Based in Galway.
Treacon Carpentry & Building Services Ltd
Attic insulationInternal wall insulation
Based in Galway · serves Dublin, Leinster, Munster and Connacht · SEAI no. 14780
Based in Galway.
West Coast Insulations Ltd
Attic insulationCavity wall insulation
Based in Galway · serves Connacht · SEAI no. 13650
Based in Galway.

Also cover Galway from elsewhere (263)

These told SEAI they cover the province Galway 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.

Ashgrove Engineering Ltd T/A Ashgrove Renewables (OSS) · Bayview Contracts Ltd (OSS) · Bord Gais Energy 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) · OHK Energy LTD (OSS) · Retrofit Design Ltd (OSS) · Retrofit Energy Ireland (OSS) · SSE Airtricity Energy Services Ltd (OSS) · AB Teague Enterprises Ltd · Abbey View Construction Lmited · Absolute Acrylics Ltd · Absolute Insulation Ltd · AC Insulation · Adrian Maguire T/A Abbey Insulation · AGI Construction Ltd · Airpacks T/A Kore Insulation · Alex Building Services · All In Insulation · Annex Building Renovation Ltd · Anthony Brady Plumbing Limited · Anthony Coughlan Heating & Plumbing TA C&S Construction Services · Anthony Quinn Construction Ltd · AO Electrical And Solar Ltd · AP Building Contractors Ltd · Apex Engineering · Ardvark Insulation Ltd · Asyl Insulation Limited T/A Foam Pro · Attic Floors and Ladders · Auro Naes Ltd T/A Roesavin Construction · Baker & Co Ltd Insulations · Ballinderry Developments Ltd T/A Rebuild · Ballyhogan Plumbing Services Ltd · Barry Kiernan Construction Ltd · Bd Partitions + Ceilings Ltd · Beechgrove Developments Ltd · Belville Carpentry and Construction Ltd · Bio Insulate Ltd · Bluerock Property Services Limited · Bnm Construction Services Ltd · Brendan Flynn · Brendan Roche · Brendan Sammon Aughnasheelin Ltd · Brendave Developments · Brian Forkan Carpentry & Construction · Brian Smith Heating & Plumbing Ltd · Brusna Energy Solutions Ltd · C S Moran Bros Builders Ltd · C.D.M. Contracts Ltd · Caherdun Ltd · Carrowgarve Construction · Carrowmore Construction Ltd · Castleconnor Construction Ltd · Castlelough Corporation Ltd · Cellulose Insulation Ltd · Ciocan Construction Ltd · Clar ICH Ltd · Cleare Home Improvements & Insulation · Clioma House Ltd · Clydesdale Construction Co. Ltd. · Connole Construction Ltd · Cornacloy Construction Ltd · Costello Insulation LTD · Dalmoy Limited · Damien Ryan Contracts Ltd · Dask Construction Limited T/A Taylor Con & C W · David Flaherty Construction LTD · David Kelly Ta East Mayo Energy Solutions · DC Energy Solutions · Decarb Contracts Ltd · Declan Taylor Carpentry & Building · Denis Fahey Construction Ltd · Derchil Limited t/a CosiHomes · Dermot Gately Carpentry and Construction · Dermot Moyles Construction Ltd · DMC mechanical construction ltd · DMT Renewables Ltd · Dncf · Downes Construction · Dromahair Tully Construction Ltd · Ds Fallon · Dt Gorman Developments Ltd · Dublin All Trades Building Services · Duey Brothers Ltd · Dunne Drylining Ltd · E.C.S.C Insulation Services Ltd · Eamonn Finn · Eco Home Insulation · Eco Pro Insulation · Eco Smart External Insulation Ltd · Eco Thermal Homes · Ecotec Insulation Ltd · Ecotech Contracts IRI Ltd · Ecowrap · Edward Eccleston · Egan Mulready Developments Ltd · Eitas · Elem Construction Ltd T/A Inish Contracts · Energy Retrofit Ireland · Energywise Savings Ireland Ltd · Evertherm Ltd T/A Annalee Energy Ltd · EZ Build · Fagan Crossmolina Limited · Ferm Eng Ltd · Finbarr McMahon Carpentry/Construction · Finlay EcoFit Tullamore Ltd · Fitzpatrick Plumbing & Heating Contractors Ltd · Floelen Construction Ltd · Forma Design & Build Ltd · G.V.Services Limited · Gallen Insulation Ltd · Gary Smyth Construction And Services Limited · Gerry Mchale Plumbing & Construction Contractors · GM Barrett Construction Ltd · Gmg Contracts Ltd · Goldcross Developments Ltd · Goode Energy · Grainger Energy Solutions Ltd · Green - Lux Construction Ltd · Green Air Technologies Ltd · Hamkel Holdings Ltd / Soltherm · Harrington Hbrs Ltd · Harrington Insulations Limited · Holmes Insulation LTD · Home Building Solutions T/A HBS Elegant build Ltd · Homergy Ltd T/AComfort Solutions Retrofit · Horan Plumbing Ltd · HUGH MCGOWAN BUILDING SERVICES LIMITED · Inline Construction and Custom Carpentry Ltd · Innovate Build Greener Ltd · Innovate Insulation Ltd · Instant Eco Homes Ltd · Insulate Ireland · J Shaw Carpentry Ltd · James Heneghan Electrical Plumbing And Heating · James Keenan Eco Limited T/A Keenan Eco · Jason Kennedy Construction Ltd · JJS Plumbing & Heating Limited · Joe Dunican Plumbing And Heating Ltd · Joe Gavin Ltd · John Carty & Sons Ltd · John Doohan and Company Ltd · John Healy Construction Ltd · John O'Loughlin & Son Ltd · Jonathan O'Connor · Judge Brothers Ltd · K K Home & Building Services Ltd · K&D Developments (Sligo) Ltd. · Kelly Insulation Heating & Plumbing · Kenmore Builders · Kg Future Homes Limited · Kh Energy Services Limited · Kilmallock Developments Ltd · Kilsarn Warmer Homes · Kingscourt Insulation Ltd · Leitrim Warmer Homes CLG · Leslie Hamilton Construction · Lovinsulation Ltd. · Lynwood Construction Ltd · M&W Fire Solutions Ltd · MacKessy Construction Ltd · Madden Developments Ltd · Magical Reconstruction Ltd · Mal Property Maintenance · Maloney Quarries Ltd · Markaye Contracts Ltd · Matthew Rice T/A Mattie Rice Carpentry · Mc Elligott Heating & Plumbing Limited · McCormack Insulation · McInerney and Keane Insulation · McMorrow Renewables Limited · McNabola Brothers.Ltd · Melmc Construction Ltd · Metro Insulation Ltd · Metro Utilities Ltd T/A Metro Developments · MG Insulation · Michael Cawe (Suspended Ceilings) Ltd · Michael Kelly Glebe Builders Ltd · Midland Suspended Ceilings Ltd · Midland Warmer Homes Company Limited · Moran Retrofit Solutions · Mountain View Construction Ltd · MS Plastering Contractor · Muggivan Brothers Construction Ltd · Multi Corp Construction Services Ltd · Mulway Construction Limited · National Retrofit & Construction Services Ltd · Niatara Construction Ta Apollo Insulation · Noel Holmes Construction Ltd. · North West Retrofit · O'Loughlin Construction · Oak Barn Construction Ltd · OG Insulation Limited · Ora Timber Frame · Oriel Insulations · Ozone Insulation Ltd · P Mcgovern & Son Construction Ltd · Paddy Kilduff and Sons Builders Ltd TA Kilduff Con · Padraig Brady Carpentry Limited · Paraic O'Brien Construction · Parker Construction Ltd · Paul O'Connor · PC Civils Limited · Peter Fallon & Sons Ltd · Peter McKiernan Construction & Engineering · Peter Oneill Construction Ltd · Phelan Construction · Poly Coating and Sealing Ltd · PPGIH Business Ltd t/a Premier Irish Homes · Premier Insulations · Proconstruct Limited · Raphael Considine Construction · Redfern Construction Ltd · Rend Master Ltd · Renova · Restore Building Company Ltd · Retrofit Energy Ireland One Stop Shop Ltd · Rio Ents Ltd ta A-Rate · RMC Ecobuild Ltd · Rmn Developments Ltd · Ronan Devers Plastering · Ruane Insulation Ltd T/A Better Energy Solutions · Ryan Spray Foam · SBN Solid Home Ltd · Seamus O'Brien & Sons Builders (Castlebar) Ltd · Seamus Ryan Roofing Ltd · Sean Paul Construction Ltd · Shane Langan Construction Ltd · SKD Construction · SLP Westport · Smyth Project Management Ltd. T/A Teknabuild · Solaregy T/A Sola · Solaris Green Energy · Sovereign Finishes Limited · SprayFoam Direct Distribution Ltd. · Ss Drylining & Plastering Ltd · Superior Insulations Ltd · Sustainable Warmth Ltd · Swallow Building And Construction Ltd · T Insulations · Ta Patrick Mcknight Roofing · Tamburah Limited · Thermowise Insulations Limited · Timahoe Construction T/A Leinster Property Service · Tirconaill Contracts Ltd T/A Mc Taggart Insulation · TLI Group Ltd T/A Transmission Links Ireland Ltd · Tomasz Rulak T/A Tombet Building · TS Gormley Construction Ltd · Unyte Solutions · Verde Remediation Services Ltd · Walter Moran Insulation · Warm 'n Cosy Homes Limited · Warmcore Homes Ltd · Winters Construction

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 Galway 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 Galway

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 Galway?: 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 Galway 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 Galway

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.