Installers · Kilkenny · SEAI registers read 25 Sep 2026
1,461 SEAI-registered contractors say they work in Kilkenny
1,461 companies on SEAI’s registers say they work in Kilkenny (read 25 September 2026). 42 are based in the county, 1,391 cover it from elsewhere and 28 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.
A cut-stone cottage in Geashill, Co. Offaly, not in Kilkenny. Detached houses built before 1940 are the commonest home sold or let in Kilkenny. We don't have a licensed photo of one taken in Kilkenny yet.
Semi-detached cottage in Geashill, County Offaly · A.-K. D. · CC0 1.0 (public domain dedication)
1,461
Companies that say they work here
SEAI registers · read 25 Sep 2026
Published figure4th of 26 for companies
42
Based in Kilkenny
The address on the register
Published figure20th of 26 for firms based in the county
28
One Stop Shops that list it
SEAI One Stop Shop register
Published figure3rd of 26 for One Stop Shops
376
Heat pump installers who say they work here
SEAI home energy register · read 25 Sep 2026
Published figure5th 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 Kilkenny
- Next questionShould you manage it yourself or use a One Stop Shop?
Who says they work in Kilkenny, by job
Based in Kilkenny 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 Kilkenny
484 registered for attic insulation · 24 based in Kilkenny
- All Weather Insulation
- Brendan Maher & Sons Construction Ltd
- Brian Healy Carpentry Ltd T/A Healy Construction
- Byrne & Byrne Construction
- Declan Buggy LTD
- Dowling Builders Ltd
- Ecomax Construction Services Ltd
- Elitetherm
Know the jobs before you call a firm in Kilkenny
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 Kilkenny
91 registered for cavity wall insulation · 1 based in Kilkenny
- John Taylor Construction Ltd
- Activ8 EnergiesOne Stop ShopWebsite
- Ashgrove Engineering Ltd T/A Ashgrove RenewablesOne Stop Shopfrom CorkWebsite
- Aspen Eco PowerOne Stop Shopfrom LouthWebsite
- Bayview Contracts LtdOne Stop ShopWebsite
- Bord Gais Energy LtdOne Stop Shopfrom DublinWebsite
- Breffni Insulation LtdOne Stop Shopfrom CavanWebsite
- CBM Munster Construction T/A Home Energy RetrofitsOne Stop ShopWebsite
Internal wall insulation installers in Kilkenny
460 registered for internal wall insulation · 24 based in Kilkenny
- All Weather Insulation
- Brendan Maher & Sons Construction Ltd
- Brian Healy Carpentry Ltd T/A Healy Construction
- Byrne & Byrne Construction
- Declan Buggy LTD
- DJH INSULATION LTD
- Dowling Builders Ltd
- Elitetherm
External wall insulation installers in Kilkenny
171 registered for external wall insulation · 6 based in Kilkenny
Window and door installers in Kilkenny
383 registered for windows and doors · 11 based in Kilkenny
- Declan Buggy LTD
- Excellence Windows & Doors Ltd
- Gathergrove Trading Ltd Ta John Ruth And Sons
- Goode Energy
- John Taylor Construction Ltd
- Mccormack Aluminium Ltd
- ML Windows
- Power-Fix Windows And Doors
Heat pump installers in Kilkenny
376 registered for heat pumps · 10 based in Kilkenny
- Eco Cool Refrigeration Ltd
- Heat Tech Solutions Ltd
- Hickey Plumbing Contractors
- John Taylor Construction Ltd
- Johnny Hewetson Ltd
- Lennon Heating And Plumbing
- Pro Gas Ltd
- Stapleton Plumbing & Heating LTD
Solar panel installers in Kilkenny
322 registered for solar panels · 1 based in Kilkenny
- Brian Rossiter Electrical
- 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
- Integrate Home Energy Upgrades LimitedOne Stop Shopfrom WicklowWebsite
- OHK Energy LTDOne Stop Shopfrom MonaghanWebsite
Heating controls installers in Kilkenny
378 registered for heating controls · 8 based in Kilkenny
- Brendan Maher & Sons Construction Ltd
- Heat Tech Solutions Ltd
- Lennon Heating And Plumbing
- Pro Gas Ltd
- Stapleton Plumbing & Heating LTD
- Stephen Cullen
- Tallis And Co Ltd
- Vincent O'Dea Heating And Plumbing
Solar hot water installers in Kilkenny
153 registered for solar hot water · 2 based in Kilkenny
- Heat Tech Solutions Ltd
- Stephen Cullen
- Activ8 EnergiesOne Stop ShopWebsite
- Ashgrove Engineering Ltd T/A Ashgrove RenewablesOne Stop Shopfrom CorkWebsite
- Aspen Eco PowerOne Stop Shopfrom LouthWebsite
- Bayview Contracts LtdOne Stop ShopWebsite
- Bord Gais Energy LtdOne Stop Shopfrom DublinWebsite
- Breffni Insulation LtdOne Stop Shopfrom CavanWebsite
How Kilkenny compares with the other counties
Each job's count against the median county's. Published figure
376 heat pump installers say they work in Kilkenny; the median county has 279
Kilkenny is 5th of 26 for heat pumps and 4th for companies of every kind. 42 are based here, 20th of 26.
Each bar is Kilkenny'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 | Kilkenny | Median county | Rank of 26 |
|---|---|---|---|
| Heat pumps | 376 | 279 | 5th |
| Attic insulation | 484 | 343 | 2nd |
| Cavity wall insulation | 91 | 87 | 2nd |
| Internal wall insulation | 460 | 323 | 2nd |
| External wall insulation | 171 | 132 | 4th |
| Windows and doors | 383 | 276 | 1st |
| Solar panels | 322 | 319 | 9th |
| One Stop Shops | 28 | 24 | 3rd |
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