Installers · Sligo · SEAI registers read 25 Sep 2026
949 SEAI-registered contractors say they work in Sligo
949 companies on SEAI’s registers say they work in Sligo (read 25 September 2026). 46 are based in the county, 885 cover it from elsewhere and 18 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 detached bungalow in Dowdallshill, Co. Louth, not in Sligo. Detached houses built 1990–2004 are the commonest home sold or let in Sligo. We don't have a licensed photo of one taken in Sligo yet.
Detached bungalow at Dowdallshill · Eric Jones · CC BY-SA 2.0
949
Companies that say they work here
SEAI registers · read 25 Sep 2026
Published figure22nd of 26 for companies
46
Based in Sligo
The address on the register
Published figure19th of 26 for firms based in the county
18
One Stop Shops that list it
SEAI One Stop Shop register
Published figure22nd of 26 for One Stop Shops
236
Heat pump installers who say they work here
SEAI home energy register · read 25 Sep 2026
Published figure20th 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 Sligo
- Next questionShould you manage it yourself or use a One Stop Shop?
Who says they work in Sligo, by job
Based in Sligo 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 Sligo
306 registered for attic insulation · 19 based in Sligo
- Adrian Maguire T/A Abbey Insulation
- Belville Carpentry and Construction Ltd
- Bnm Construction Services Ltd
- Brendan Flynn
- Brusna Energy Solutions Ltd
- Castleconnor Construction Ltd
- Dask Construction Limited T/A Taylor Con & C W
- Declan Taylor Carpentry & Building
Know the jobs before you call a firm in Sligo
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 Sligo
74 registered for cavity wall insulation · 3 based in Sligo
- Adrian Maguire T/A Abbey Insulation
- Brusna Energy Solutions Ltd
- John Doohan and Company Ltd
- 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 Sligo
292 registered for internal wall insulation · 19 based in Sligo
- Belville Carpentry and Construction Ltd
- Bnm Construction Services Ltd
- Brendan Flynn
- Brusna Energy Solutions Ltd
- Castleconnor Construction Ltd
- CJH Construction
- Dask Construction Limited T/A Taylor Con & C W
- Declan Taylor Carpentry & Building
External wall insulation installers in Sligo
104 registered for external wall insulation · 4 based in Sligo
- Brusna Energy Solutions Ltd
- CJH Construction
- John Doohan and Company Ltd
- Pentico Contracting Ltd
- 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 Sligo
203 registered for windows and doors · 9 based in Sligo
- Atlantic Windows & Doors Ltd
- Bnm Construction Services Ltd
- Brusna Energy Solutions Ltd
- Denis Fahey Construction Ltd
- K&D Developments (Sligo) Ltd.
- R Mcd Home Improvements Ltd
- Raymond McSteen
- Sligo Glass Company Ltd.
Heat pump installers in Sligo
236 registered for heat pumps · 17 based in Sligo
- Alex Byrne
- AMS Plumbing & Heating Specialists Ltd
- Anthony Kilcolm
- Brusna Energy Solutions Ltd
- Enviro - Therm Ltd
- Feeney Heat and Gas Ltd
- Finn Heat Pumps Limited
- Glenhill Plumbing Services
Solar panel installers in Sligo
298 registered for solar panels · 2 based in Sligo
- Collery Solar
- Solektric
- 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
- OHK Energy LTDOne Stop Shopfrom MonaghanWebsite
- 1st Choice Electrical Services LimitedWebsite
Heating controls installers in Sligo
214 registered for heating controls · 14 based in Sligo
- AMS Plumbing & Heating Specialists Ltd
- Anthony Kilcolm
- Brusna Energy Solutions Ltd
- Feeney Heat and Gas Ltd
- Glenhill Plumbing Services
- James Lynch Plumbing & Heating Ltd
- John Hession Heating & Plumbing
- Kilian McGowan Heating & Plumbing
Solar hot water installers in Sligo
89 registered for solar hot water · 4 based in Sligo
- AMS Plumbing & Heating Specialists Ltd
- Brusna Energy Solutions Ltd
- James Lynch Plumbing & Heating Ltd
- Sean Gallagher Plumbing + Heating Ltd
- 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
How Sligo compares with the other counties
Each job's count against the median county's. Published figure
236 heat pump installers say they work in Sligo; the median county has 279
Sligo is 20th of 26 for heat pumps and 22nd for companies of every kind. 46 are based here, 19th of 26.
Each bar is Sligo'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 | Sligo | Median county | Rank of 26 |
|---|---|---|---|
| Heat pumps | 236 | 279 | 20th |
| Attic insulation | 306 | 343 | 19th |
| Cavity wall insulation | 74 | 87 | 20th |
| Internal wall insulation | 292 | 323 | 19th |
| External wall insulation | 104 | 132 | 20th |
| Windows and doors | 203 | 276 | 20th |
| Solar panels | 298 | 319 | 21st |
| One Stop Shops | 18 | 24 | 22nd |
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