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 Waterford?

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 Waterford 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 Waterford

342 companies on SEAI's register say they do attic insulation in Waterford. Only work by a registered company gets the SEAI grant.

16 are based in Waterford; the other 326 cover it from elsewhere.
The grant for a semi-detached house is €1,500. SEAI’s middle price last year was €2,101.
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.

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

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

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

Based in Waterford

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

Ballinamintra Building Services LtdAttic insulationInternal wall insulationBased in Waterford · serves Leinster and Munster · SEAI no. 17021Based in Waterford.
C&H Building Contractors LimitedAttic insulationInternal wall insulationWindow and doorBased in Waterford · serves Munster · SEAI no. 10568Based in Waterford.
CK Energy Management Solutions (EMS) Ltd t/a ENCONAttic insulationCavity wall insulationExternal wall insulationHeating controlsInternal wall insulationSolar panelWindow and doorBased in Waterford · serves Dublin, Leinster and Munster · SEAI no. 15939 · WebsiteBased in Waterford.
Conor Phelan Construction LtdAttic insulationExternal wall insulationInternal wall insulationBased in Waterford · serves Munster · SEAI no. 16887Based in Waterford.
Cullinane Ref. & Eng Ltd T/A C.R.EAttic insulationHeat pumpBased in Waterford · serves Munster · SEAI no. 18015Based in Waterford.
Culmc Constructiuon LTD TA JMC ConstructionAttic insulationInternal wall insulationBased in Waterford · serves Munster · SEAI no. 12009Based in Waterford.
Dungarvan External Insulation LtdAttic insulationCavity wall insulationBased in Waterford · serves Munster · SEAI no. 17400Based in Waterford.
Dungarvan Insulation LtdAttic insulationCavity wall insulationBased in Waterford · serves Munster · SEAI no. 10040Based in Waterford.
Kereen Building ServicesAttic insulationHeat pumpHeating controlsInternal wall insulationBased in Waterford · serves Munster · SEAI no. 16563Based in Waterford.
Keybuild Services LtdAttic insulationBased in Waterford · serves Munster · SEAI no. 19398Based in Waterford.
LF Building Services T/A Fennery construction ltdAttic insulationInternal wall insulationBased in Waterford · serves Munster · SEAI no. 16874Based in Waterford.
Liam HokeyAttic insulationInternal wall insulationBased in Waterford · serves Leinster and Munster · SEAI no. 19787Based in Waterford.
MG InsulationAttic insulationNationwide · SEAI no. 20107Based in Waterford.
Odl Homes LtdAttic insulationInternal wall insulationBased in Waterford · serves Munster · SEAI no. 15927Based in Waterford.
Richard Harte Building & Plastering Services LtdAttic insulationInternal wall insulationBased in Waterford · serves Munster · SEAI no. 10049Based in Waterford.
Stone Arches LTD T/A Waterford InsulationAttic insulationCavity wall insulationExternal wall insulationHeat pumpHeating controlsInternal wall insulationWindow and doorBased in Waterford · serves Leinster and Munster · SEAI no. 10284Based in Waterford.

Also cover Waterford from elsewhere (326)

These told SEAI they cover the province Waterford 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.

Ashgrove Engineering Ltd T/A Ashgrove Renewables (OSS) · Bayview Contracts Ltd (OSS) · Bord Gais Energy Ltd (OSS) · Breffni Insulation Ltd (OSS) · CBM Munster Construction T/A Home Energy Retrofits (OSS) · Churchfield Home Services (OSS) · Electric Ireland Superhomes (OSS) · Energlaze Home Energy Upgrades (OSS) · Energywise Ireland (OSS) · Envirobead Ltd. (OSS) · Greenwatt Ltd (OSS) · House 2 Home Retrofit Ltd (OSS) · Kilgobbin Castle Holdings Ltd t/a Insulex (OSS) · Kingdom Installation Ltd (OSS) · Kingspan Insulation Ltd (OSS) · Kore Retrofit Ltd (OSS) · Leetherm Project Management Ltd (OSS) · Moston Construction Ltd (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) · AB Teague Enterprises Ltd · Ability Contracting Ltd · Absolute Acrylics Ltd · Aerofill Insulation · AGI Construction Ltd · Aidan Mccarthy Construction Ltd · Airpacks T/A Kore Insulation · AL Plastering & Building Contractor · Alc Construction Limited · All In Insulation · All Weather Insulation · Allied Irish Property Ltd · Alpha Insulation Ltd T/A Western Insulation · AM Carpentry Ltd · Annex Building Renovation Ltd · Anthony Coughlan Heating & Plumbing TA C&S Construction Services · Anthony Morahan Plumbing & Heating Ltd · Apex Engineering · Ardvark Insulation Ltd · Asyl Insulation Limited T/A Foam Pro · Attic Floors and Ladders · Auro Naes Ltd T/A Roesavin Construction · B & T External Insulation & Plastering Ltd · Baker & Co Ltd Insulations · Ballinderry Developments Ltd T/A Rebuild · Ballyhogan Plumbing Services Ltd · Bd Partitions + Ceilings Ltd · Behan Builders Shanagolden Ltd. · BK Modern Build Ltd · BR Insulation t/u Robert O'Brien & Son Ltd · Brendan Maher & Sons Construction Ltd · Brendan Moloney Carpentry · Brendan Shanahan · Brian Healy Carpentry Ltd T/A Healy Construction · Brian Smith Heating & Plumbing Ltd · Bromur Energy Ltd · Brosnan Plastering & Insulation Systems Ltd · Budget Renovations · Byrne & Byrne Construction · C & B Cormican Building Contractors Ltd · C & W Insulations · C&Y Renovations Ltd · CA Energy Ltd · Cadogan Construction · Carew Construction Ltd · Carlow Insulation Solutions · Cellulose Insulation Ltd · Century Retrofit Ltd · Charles Mc Carthy Plumbing Ltd. · Christopher Doona Heating & Plumbing Contractor · Ciocan Construction Ltd · Clar ICH Ltd · Clare Insulation · Cleare Home Improvements & Insulation · Clifford Roofing And Contracting Ltd · Colm And Michael Dunne · Comfort Living Limited · Con Horgan & Sons Ltd T/A Horgan Renewables · Connole Construction Ltd · Connolly Building & Renovations Ltd · Connolly Insulation · Coolim Construction Ltd · Coolyduff Construction Ltd · Corrib View Construction Ltd · Cosyfill Insulation · CW Xterior Solutions Ltd · D Dwyer Builders Ltd · Dalmoy Limited · Dalvac Systems Limited · Damien Ryan Contracts Ltd · Dave Cunningham Carpentry Ltd · Dave Fitzgerald Contracts Ltd · David Doyle Construction Limited · David Flaherty Construction LTD · David Kelly Ta East Mayo Energy Solutions · David O'Flynn Construction T/A Petram Construction · David O'Sullivan · DC Energy Solutions · De Courcy'S Bridge Ltd · Declan Buggy LTD · Deep Retrofit Ltd · Derchil Limited t/a CosiHomes · Derek Curtin Ltd. · DKS Construction Ltd · Dncf · Donal A O'Brien Building Ltd · Doyle Construction Cork · DSL Construction · Dublin All Trades Building Services · Duey Brothers Ltd · Dunmanus Construction Ltd · Dunne Drylining Ltd · Eco Home Insulation · Eco Pro Insulation · Eco Smart External Insulation Ltd · Eco Thermal Homes · Ecomax Construction Services Ltd · Ecosy Better Homes Ltd · Ecotec Insulation Ltd · Ecotech Contracts IRI Ltd · Ecowise Insulation Ltd · Edward Eccleston · Eirgreen · Eitas · EJP Concrete Structures Ltd · Elem Construction Ltd T/A Inish Contracts · Elitetherm · Energy Retrofit Ireland · Energywise Savings Ireland Ltd · Eugene Brouder · Evertherm Ltd T/A Annalee Energy Ltd · Fagan Crossmolina Limited · Finbarr McMahon Carpentry/Construction · Finlay EcoFit Tullamore Ltd · Finloc Renovations Ltd T/A Finloc Construction · Five Counties Home Insulation Limited · Floelen Construction Ltd · Forma Design & Build Ltd · Foster Construction · Garry McCarthy Construction Ltd · GjMurray ConstructionT/AFrank Murray Construction · Glen Construction Design Ltd · Glenwood Preservation Ltd · Goleen Developments Ltd · Goode Energy · Grainger Energy Solutions Ltd · Grangebarry Construction Ltd · Green Air Technologies Ltd · Grouville Developments Ltd · Hamkel Holdings Ltd / Soltherm · Harrington Hbrs Ltd · Harrington Insulations Limited · Heffernan Brothers Contractors HBC Ltd · Henry Connolly Builder Ltd. · Home Building Solutions T/A HBS Elegant build Ltd · Home Works Insulation · HPC Plasterers Limited T/A Holland Insulation · Inglotherm Ltd · Innovate Insulation Ltd · Instant Eco Homes Ltd · Insulate Ireland · IRD Duhallow · J Shaw Carpentry Ltd · J.D. Buckley Construction Ltd · J&C McMahon · Jason Connellan Construction Ltd · JBS Construction Ltd · Jf Fordham Construction Ltd · JJS Plumbing & Heating Limited · Jm Energy Savings Limited · Joe Dunican Plumbing And Heating Ltd · John O'Loughlin & Son Ltd · John Ryan Premier Construction Ltd · John Somers Construction Ltd · John Taylor Construction Ltd · Jon O 'Neill Construction Limited · Jonathan O'Connor · K K Home & Building Services Ltd · K&D Developments (Sligo) Ltd. · Kanto Property Services · Kelly Insulation Heating & Plumbing · Kesel Construction Ltd · Kg Future Homes Limited · Kh Energy Services Limited · Kieran Walsh Building & Plastering Ltd · Kilmallock Developments Ltd · Kilrehill Bros · Kingscourt Insulation Ltd · Labcon Building And Civil Engineering Limited · LDS INTERIORS LTD · Leetherm Insulation Ltd. · Leitrim Warmer Homes CLG · Lovinsulation Ltd. · M & K Interiors Ltd · M Fox & WM O'Rourke Construction Ltd · M-G Construction Services · M&W Fire Solutions Ltd · MacKessy Construction Ltd · Madden Developments Ltd · MAK Building Services Ltd · Mal Property Maintenance · Mannion Passive House Builders Ltd · Mardoc Holdings Limited · Markaye Contracts Ltd · Matthew Rice T/A Mattie Rice Carpentry · McCaher Construction Ltd. · McCormack Insulation · McInerney and Keane Insulation · Metro Insulation Ltd · Metro Utilities Ltd T/A Metro Developments · Michael Considine · Michael Murphy Construction · Michael Ormond Ltd · Midland Warmer Homes Company Limited · MJ O'Doherty Ltd · Mjkhomes Galway Ltd · Momentum Construction LTD · Monanore Construction Ltd · Moran Retrofit Solutions · MS Plastering Contractor · Muggivan Brothers Construction Ltd · Multi Corp Construction Services Ltd · Mulway Construction Limited · National Retrofit & Construction Services Ltd · Nc Carpentry & Construction Ltd · NCE Insulation T/A Secure and Fix It Enterprises · Ned Grant and Sons · Neil Hogan Building Contractor · Nexgen Developments LTD · Nexus Building & Civil Engineering Ltd · Noel Hennessy Construction Ltd · Noel Leahy Carpentry & Building Services Limited · O Leary Insulation · O Mahony Renewable Solutions Ltd · O'Loughlin Construction · Ocon Plastering Ltd · OG Insulation Limited · Ora Timber Frame · Oriel Insulations · OS Insulate Ltd · P&T Complete Renovations Ltd · Paddy Kilduff and Sons Builders Ltd TA Kilduff Con · Parker Construction Ltd · Pat Dineen T/A Hamilton French · Pat F Murphy · Pat Loftus Construction Ltd · Patrick O'Regan · Patrick Sheehan Construction · Paudie Sheehy · Phelan Construction · Philly Burke Carpentry, Painting & Building · PNA insulation Ltd T/A O'Loghlen Insulation Ltd · Poly Coating and Sealing Ltd · Pouldoon Construction Ltd · PPGIH Business Ltd t/a Premier Irish Homes · Premier Insulations · Primabuild Ltd · Pro Walls Ltd · Probuild Building Services Ltd · Quilter Insulation · Raphael Considine Construction · Redfern Construction Ltd · Reflat Insulation Ltd · Rend Master Ltd · Renova · Renual Construction Limited · Retrofit Energy Ireland One Stop Shop Ltd · Richard Mc Mahon & Warmer Homes · Rio Ents Ltd ta A-Rate · RMC Ecobuild Ltd · RS Construction · Rubix's Renovations & Retrofit Solutions Limited · Ryan Spray Foam · Salix Construction Ltd · SBN Solid Home Ltd · Scott Shellard Construction Limited · Sean Fitzgerald Ceilings & Partitions Ltd · Sean Lilley Construction Limited · Shamrock Insulation · Sheehy Insulation Ltd · Sigma Homes Ltd · SLP Westport · SMB Construction · Smyth Project Management Ltd. T/A Teknabuild · Solar Direct Ltd. · Solaregy T/A Sola · Solastech Insulation Ltd · Solid Insulation Systems Ireland Ltd · South East Insulations · Sovereign Finishes Limited · SprayFoam Direct Distribution Ltd. · Springridge Construction Ltd · Stephen Doherty · Stephen Mc Grath · Stephen Murphy Plumbing & Heating Ltd · Superior Insulations Ltd · Sustainable Warmth Ltd · T & A Plant Hire · Ta Patrick Mcknight Roofing · Tallis And Co Ltd · Tamburah Limited · The Best Insulation · Thermo Renewables Limited · Thermowise Insulations Limited · Thomas O Connor · Tim O'Leary Spray Foam Ltd · Timahoe Construction T/A Leinster Property Service · Tirconaill Contracts Ltd T/A Mc Taggart Insulation · Titan Homes Ltd · TLI Group Ltd T/A Transmission Links Ireland Ltd · TMC Construction · Tomasz Rulak T/A Tombet Building · Tony McKeon Carpentry & Building Services · Treacon Carpentry & Building Services Ltd · Trevor Kelliher Constuction · Trident Insulation · Verde Remediation Services Ltd · Vincent Bergin & Sons Limited · Wall 2 Wall Construction · Warmcore Homes Ltd · Weglarz Construction · West Kerry Heat & Plumbing Ltd

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 Waterford compares

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

Figure 1Published figure

342 attic insulation installers say they work in Waterford; the median county has 343

Waterford is 15th of 26. The most list Wicklow (486); the fewest, Donegal (211). 24 One Stop Shops list Waterford.

Waterford342
The median county343
Most: Wicklow486
Fewest: Donegal211

Each bar counts companies on SEAI's register that list the county for attic 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 Waterford ones: SEAI does not publish prices by county. SEAI rule

On a semi-detached house, SEAI's middle price of €2,101 less the grant leaves €601 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 Waterford?: 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 Waterford 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