Installers · Louth · SEAI registers read 25 Sep 2026
1,440 SEAI-registered contractors say they work in Louth
1,440 companies on SEAI’s registers say they work in Louth (read 25 September 2026). 50 are based in the county, 1,365 cover it from elsewhere and 25 are One Stop Shops from elsewhere. Firms often tick a whole province, so the count is regional. Registration is a fact about paperwork, not a review of their work.
Terraced houses behind an estate green in Ashbrook Estate, Dundalk, Co. Louth. Semi-detached houses built 1990–2004 are the commonest home sold or let in Louth.
Terraced housing on Ashbrook Estate, Dundalk · Eric Jones · CC BY-SA 2.0
1,440
Companies that say they work here
SEAI registers · read 25 Sep 2026
Published figure11th of 26 for companies
50
Based in Louth
The address on the register
Published figure17th of 26 for firms based in the county
26
One Stop Shops that list it
SEAI One Stop Shop register
Published figure9th of 26 for One Stop Shops
375
Heat pump installers who say they work here
SEAI home energy register · read 25 Sep 2026
Published figure10th of 26 for heat pumps
Updated · registers read 25 Sep 2026 · How we know · Corrections
Where this sits · the grant steps
Every SEAI grant runs the same six steps. SEAI won't pay for work that starts before it approves.
- Assessa BER, or a home energy assessment
- Applyonline, before any work starts
- ApproveSEAI's offer lasts 8 months
- Worksby an SEAI-registered contractor
- Claimpost-works BER and forms
- Paid4–6 weeks after complete paperwork
- The idea behind itApply, approve, works and payment are different steps
- You are hereInstallers in Louth
- Next questionShould you manage it yourself or use a One Stop Shop?
Who says they work in Louth, by job
Based in Louth first, then firms that travel to it, then One Stop Shops, then by name. Not an order of merit. Published figure
Attic insulation installers in Louth
483 registered for attic insulation · 14 based in Louth
- Aspen Eco PowerOne Stop ShopWebsite
- Breen Heating and Plumbing Ltd
- Budget Renovations
- Clarke Building Services
- DADN Construction Ltd
- Eyres North East Insulations
- Kiwi Construction
- MRM Building and Development Ltd
Know the jobs before you call a firm in Louth
See your grants, and what you’d pay.
About 10 seconds. See your numbers first, then get quotes if you want them.
Cavity wall insulation installers in Louth
89 registered for cavity wall insulation · 2 based in Louth
- Aspen Eco PowerOne Stop ShopWebsite
- NE Energy Efficient Homes Ltd
- Activ8 EnergiesOne Stop ShopWebsite
- Ashgrove Engineering Ltd T/A Ashgrove RenewablesOne Stop Shopfrom CorkWebsite
- Bayview Contracts LtdOne Stop ShopWebsite
- Bord Gais Energy LtdOne Stop Shopfrom DublinWebsite
- Breffni Insulation LtdOne Stop Shopfrom CavanWebsite
- Churchfield Home ServicesOne Stop Shopfrom MayoWebsite
Internal wall insulation installers in Louth
459 registered for internal wall insulation · 15 based in Louth
- Aspen Eco PowerOne Stop ShopWebsite
- Bernard McKeown Plastering
- Breen Heating and Plumbing Ltd
- Budget Renovations
- Clarke Building Services
- DADN Construction Ltd
- Kiwi Construction
- MRM Building and Development Ltd
External wall insulation installers in Louth
169 registered for external wall insulation · 3 based in Louth
- Aspen Eco PowerOne Stop ShopWebsite
- Bernard McKeown Plastering
- Blacksea Construction And Supply Limited
- Activ8 EnergiesOne Stop ShopWebsite
- Ashgrove Engineering Ltd T/A Ashgrove RenewablesOne Stop Shopfrom CorkWebsite
- Bayview Contracts LtdOne Stop ShopWebsite
- Bord Gais Energy LtdOne Stop Shopfrom DublinWebsite
- Breffni Insulation LtdOne Stop Shopfrom CavanWebsite
Window and door installers in Louth
380 registered for windows and doors · 21 based in Louth
- Aspen Eco PowerOne Stop ShopWebsite
- Approved Leinster Windows Limited
- Budget Renovations
- Castle Windows
- DADN Construction Ltd
- Decarr Property Maintenance Ltd
- Deerpark Glazing Ltd
- Dundalk Glass And Glazing Limited
Heat pump installers in Louth
375 registered for heat pumps · 18 based in Louth
- Aspen Eco PowerOne Stop ShopWebsite
- Beltech Renewables Ltd
- Bernard Ward Heating & Plumbing Ltd
- Breen Heating and Plumbing Ltd
- Bright Line Systems
- C.S.G Heating And Plumbing
- CSC Engineering Ltd
- David Mcdowell
Solar panel installers in Louth
301 registered for solar panels · 3 based in Louth
- Jason Fahy Heating
- NZEB Technologies Ltd
- Zetta Home Services LtdWebsite
- Ashgrove Engineering Ltd T/A Ashgrove RenewablesOne Stop Shopfrom CorkWebsite
- Bayview Contracts LtdOne Stop ShopWebsite
- Bord Gais Energy LtdOne Stop Shopfrom DublinWebsite
- Churchfield Home ServicesOne Stop Shopfrom MayoWebsite
- Home Comfort Retrofits LtdOne Stop Shopfrom KildareWebsite
Heating controls installers in Louth
376 registered for heating controls · 17 based in Louth
- Aspen Eco PowerOne Stop ShopWebsite
- Beltech Renewables Ltd
- Bernard Ward Heating & Plumbing Ltd
- Breen Heating and Plumbing Ltd
- Bright Line Systems
- CGP
- CSC Engineering Ltd
- Gilroy Heating Services Ltd
Solar hot water installers in Louth
151 registered for solar hot water · 10 based in Louth
- Aspen Eco PowerOne Stop ShopWebsite
- Breen Heating and Plumbing Ltd
- CGP
- CSC Engineering Ltd
- Gilroy Heating Services Ltd
- Hagim Gas Ltd
- Jason Fahy Heating
- NZEB Technologies Ltd
How Louth compares with the other counties
Each job's count against the median county's. Published figure
375 heat pump installers say they work in Louth; the median county has 279
Louth is 10th of 26 for heat pumps and 11th for companies of every kind. 50 are based here, 17th of 26.
Each bar is Louth's count for that job, on a scale to the county with the most; the tick is the median county. Many firms tick a whole province, so counts move in regional steps, and neighbouring counties often share a step. A count is choice, not capacity.
Sources: SEAI home energy, One Stop Shop and solar registers, read 25 Sep 2026
The numbers
| Job | Louth | Median county | Rank of 26 |
|---|---|---|---|
| Heat pumps | 375 | 279 | 10th |
| Attic insulation | 483 | 343 | 5th |
| Cavity wall insulation | 89 | 87 | 8th |
| Internal wall insulation | 459 | 323 | 5th |
| External wall insulation | 169 | 132 | 9th |
| Windows and doors | 380 | 276 | 8th |
| Solar panels | 301 | 319 | 20th |
| One Stop Shops | 26 | 24 | 9th |
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.
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
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.
Updated · registers read 25 Sep 2026 · How we know · Corrections