Installers · Longford · SEAI registers read 25 Sep 2026
1,437 SEAI-registered contractors say they work in Longford
1,437 companies on SEAI’s registers say they work in Longford (read 25 September 2026). 21 are based in the county, 1,392 cover it from elsewhere and 24 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.
Semi-detached houses round a green in The Park View, near Naas, Co. Kildare, not in Longford. Semi-detached houses built 2005–2010 are the commonest home sold or let in Longford. We don't have a licensed photo of one taken in Longford yet.
1,437
Companies that say they work here
SEAI registers · read 25 Sep 2026
Published figure12th of 26 for companies
21
Based in Longford
The address on the register
Published figure24th of 26 for firms based in the county
24
One Stop Shops that list it
SEAI One Stop Shop register
Published figure13th of 26 for One Stop Shops
373
Heat pump installers who say they work here
SEAI home energy register · read 25 Sep 2026
Published figure11th 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 Longford
- Next questionShould you manage it yourself or use a One Stop Shop?
Who says they work in Longford, by job
Based in Longford 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 Longford
480 registered for attic insulation · 9 based in Longford
- Barry Kiernan Construction Ltd
- Dt Gorman Developments Ltd
- Eco Home Insulation
- Gary Smyth Construction And Services Limited
- Kilsarn Warmer Homes
- Mc Elligott Heating & Plumbing Limited
- Shane Muldoon Construction Ltd
- T & S Mckeon Homes Ltd
Know the jobs before you call a firm in Longford
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 Longford
87 registered for cavity wall insulation · 1 based in Longford
- Eco Home Insulation
- 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
- Churchfield Home ServicesOne Stop Shopfrom MayoWebsite
Internal wall insulation installers in Longford
456 registered for internal wall insulation · 8 based in Longford
- Barry Kiernan Construction Ltd
- Dt Gorman Developments Ltd
- Eco Home Insulation
- Gary Smyth Construction And Services Limited
- Kilsarn Warmer Homes
- Shane Muldoon Construction Ltd
- T & S Mckeon Homes Ltd
- Watters Construction & Rental Limited
External wall insulation installers in Longford
167 registered for external wall insulation · 1 based in Longford
- Kilsarn Warmer Homes
- 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
- Churchfield Home ServicesOne Stop Shopfrom MayoWebsite
Window and door installers in Longford
378 registered for windows and doors · 5 based in Longford
Heat pump installers in Longford
373 registered for heat pumps · 8 based in Longford
- Ballydowd Homes Ltd
- Eco Heat Renewable Plumbing Ltd
- Justin Hopkins Heating And Plumbing Ltd
- KC Mechanical Services
- Loughawn Heating Ltd
- Mc Elligott Heating & Plumbing Limited
- MFG Construction Ltd
- PMCG Services
Solar panel installers in Longford
303 registered for solar panels · 0 based in Longford
- 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
- 1st Choice Electrical Services LimitedWebsite
Heating controls installers in Longford
375 registered for heating controls · 8 based in Longford
- Ballydowd Homes Ltd
- Eco Heat Renewable Plumbing Ltd
- Justin Hopkins Heating And Plumbing Ltd
- KC Mechanical Services
- Loughawn Heating Ltd
- Mc Elligott Heating & Plumbing Limited
- MFG Construction Ltd
- PMCG Services
Solar hot water installers in Longford
150 registered for solar hot water · 3 based in Longford
- Ballydowd Homes Ltd
- Justin Hopkins Heating And Plumbing Ltd
- Mc Elligott Heating & Plumbing Limited
- 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
How Longford compares with the other counties
Each job's count against the median county's. Published figure
373 heat pump installers say they work in Longford; the median county has 279
Longford is 11th of 26 for heat pumps and 12th for companies of every kind. 21 are based here, 24th of 26.
Each bar is Longford'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 | Longford | Median county | Rank of 26 |
|---|---|---|---|
| Heat pumps | 373 | 279 | 11th |
| Attic insulation | 480 | 343 | 10th |
| Cavity wall insulation | 87 | 87 | 12th |
| Internal wall insulation | 456 | 323 | 10th |
| External wall insulation | 167 | 132 | 12th |
| Windows and doors | 378 | 276 | 11th |
| Solar panels | 303 | 319 | 19th |
| One Stop Shops | 24 | 24 | 13th |
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