External wall insulation installers in Louth
169 companies on SEAI's register say they do external wall insulation in Louth. Only work by a registered company gets the SEAI grant.
- 3 are based in Louth; the other 166 cover it from elsewhere.
- The grant for a semi-detached house is €6,000. SEAI’s middle price last year was €23,219.
- 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.
A terrace of bungalows under scaffolding for wall insulation. Photographed in Hull, England.
Garrick Close, Kingston upon Hull: bungalow renovations, September 2023 · Hullian111 · CC BY-SA 4.0
See your grants for wall insulation, and what you’d pay
About 10 seconds. See your numbers first, then get quotes if you want them.
Based in Louth
3 of them, from SEAI's register (read 25 September 2026). Not an order of merit. Published figure
- Aspen Eco PowerOne Stop ShopAttic insulationCavity wall insulationExternal wall insulationHeat pumpHeating controlsInternal wall insulationSolar hot waterWindow and doorBased in Louth.
- Bernard McKeown PlasteringExternal wall insulationInternal wall insulationBased in Louth.
- Blacksea Construction And Supply LimitedExternal wall insulationBased in Louth.
Also cover Louth from elsewhere (166)
These told SEAI they cover the province Louth 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) · Bayview Contracts Ltd (OSS) · Bord Gais Energy Ltd (OSS) · Breffni Insulation Ltd (OSS) · Churchfield Home Services (OSS) · Cooper Insulation Ltd. (OSS) · Electric Ireland Superhomes (OSS) · Energlaze Home Energy Upgrades (OSS) · Energyfix (OSS) · Envirobead Ltd. (OSS) · Greenwatt Ltd (OSS) · Home Comfort Retrofits Ltd (OSS) · House 2 Home Retrofit Ltd (OSS) · Integrate Home Energy Upgrades Limited (OSS) · Kingdom Installation Ltd (OSS) · Kingspan Insulation Ltd (OSS) · Kore Retrofit Ltd (OSS) · Larkrock (OSS) · Lough Projects (OSS) · Moston Construction Ltd (OSS) · OHK Energy LTD (OSS) · Retrofit Design Ltd (OSS) · Retrofit Energy Ireland (OSS) · SSE Airtricity Energy Services Ltd (OSS) · A & D External Wrap Ltd · Absolute Acrylics Ltd · Ailesbury Warm Homes Ltd T/A Warmhomes.ie · Algricris Construction Ltd · All Weather External Insulation Ltd · All Weather Insulation · Alpine Sunrooms Ltd · ANEIS Ltd T/A AN External Insulation Specialist · Anthony Coughlan Heating & Plumbing TA C&S Construction Services · Ap Eco Building & Renovation · AR Plastering Ltd · Ashmark Civil And Utilities · AVM Construction Ltd · Ballinderry Developments Ltd T/A Rebuild · Better Me Ltd Ta North Shield Insulation · bightheplumber Ltd · Bluebuild Renewables Ltd · Brayton Homes · C & W Insulations · Carlow Insulation Solutions · Carrickmaquigley Construction Ltd · Castlestone Construction BV Ltd · Century Retrofit Ltd · Ciocan Construction Ltd · CJH Construction · CK Energy Management Solutions (EMS) Ltd t/a ENCON · CKF Interiors & Insulation · Comfort Living Limited · Cool To Be Warm Insulation T/A Kevin Hoey Carpentr · CW Xterior Solutions Ltd · D Carry Construction · Damien Ryan Contracts Ltd · David Flaherty Construction LTD · DC Energy Solutions · Decarb Contracts Ltd · Declan Fahy Plastering LTD · Declan O Brien Construction Limited · Delta Build Development · Derchil Limited t/a CosiHomes · DJH INSULATION LTD · DMT Renewables Ltd · Ds Fallon · Dublin All Trades Building Services · Duey Brothers Ltd · Eco Pro Insulation · Eco Shield External Insulation Ltd · Eco Smart External Insulation Ltd · Eco Thermal Homes · Eco Warmer Homes · Ecoinsulationplus.Ie · Ecomax Construction Services Ltd · Eirgreen · Elitetherm · Energy Retrofit Ireland · Energysmart Construction Ltd · Equinox Construction Ltd · Expert Residential PropertyLtd T/A Expert Property · Finlay EcoFit Tullamore Ltd · Floelen Construction Ltd · G & D Construction Projects Ltd · Grainger Energy Solutions Ltd · Green - Lux Construction Ltd · Green Air Technologies Ltd · Green Home Technology Ltd · Greenland Eco Construction Ltd · Greentech Insulations Waterford ltd Greentech Facades · Hamkel Holdings Ltd / Soltherm · Harrington Insulations Limited · Harry Twomey Plastering · HDC Construction · Heco Construction Ltd · Hoar Rock Construction Ltd · Home Building Solutions T/A HBS Elegant build Ltd · Homeology Ltd · Hometherm Insulation Ltd · House Proud Unique (HPU) · Hughes and Co External Insulation · Insulate Ireland · Insulate your home Ltd · Jacob Insulation Limited · James Doran & Son Ltd · JMCK Building Solutions Ltd · John Skehan Services Ltd · Kieran Walsh Building & Plastering Ltd · Kilmallock Developments Ltd · Kilsarn Warmer Homes · Kokoon Insulation Ltd · Leetherm Insulation Ltd. · Leitrim Warmer Homes CLG · Leonard Price Developments Ltd · Luca Line Limited TA Luca Line Services · Madden Developments Ltd · McCaher Construction Ltd. · McMorrow Renewables Limited · Meegan Insulations · Metro Insulation Ltd · Michael O Reilly Plastering & Wall Insulation · Midland Ecowrap · MJS Eco Limited · Moran Retrofit Solutions · MS Plastering Contractor · Murphy Brothers · Narod Insulation Contractors Ltd · National Retrofit & Construction Services Ltd · North Dublin Heating · Notrom Ltd · Novin Consultants Ltd · O'Toole Plastering · Old Court Construction · Pa Home Renovations · Paddy Kilduff and Sons Builders Ltd TA Kilduff Con · Platinum Insulation · Pro Walls Ltd · Professional Solid Insulation · QDL Insulation · R & U Company Ltd. · Rend Master Ltd · Rio Ents Ltd ta A-Rate · Ryan And Kennedy · SBN Solid Home Ltd · Seamus O'Reilly · Sema Construction Limited · Sloane Plastering LTD · Solar Direct Ltd. · Solaregy T/A Sola · Solid Insulation Systems Ireland Ltd · Sovereign Finishes Limited · Spreadwell Construction Ltd · Stone Arches LTD T/A Waterford Insulation · Superior Insulations Ltd · Taylormade Plastering · Tekton Contruction Ltd · The Best Insulation · Thermotech Retrofit Ltd · Tirconaill Contracts Ltd T/A Mc Taggart Insulation · TLI Group Ltd T/A Transmission Links Ireland Ltd · Tomasz Rulak T/A Tombet Building · Tus Nua Building Services Ltd · Vital Construction Limited · Warm Walls Insulation 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.
The detail
How Louth compares
External wall insulation installers who say they work in each county, from SEAI's register. Published figure
169 external wall insulation installers say they work in Louth; the median county has 132
Louth is 9th of 26. The most list Dublin (175); the fewest, Donegal (76). 26 One Stop Shops list Louth.
Each bar counts companies on SEAI's register that list the county for external 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 Louth ones: SEAI does not publish prices by county. SEAI rule
On a semi-detached house, SEAI's middle price of €23,219 less the grant leaves €17,219 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.
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 Louth?
- 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 Louth 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 · grants checked · register read 25 Sep 2026 · How we know · Corrections