Installers · Monaghan · SEAI registers read 25 Sep 2026
673 SEAI-registered contractors say they work in Monaghan
673 companies on SEAI’s registers say they work in Monaghan (read 25 September 2026). 35 are based in the county, 619 cover it from elsewhere and 19 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 row of single-storey cottages in Edenamo, Inniskeen, Co. Monaghan. Detached houses built 1970–1989 are the commonest home sold or let in Monaghan.
Terraced bungalows at Edenamo, Inniskeen · Eric Jones · CC BY-SA 2.0
673
Companies that say they work here
SEAI registers · read 25 Sep 2026
Published figure26th of 26 for companies
35
Based in Monaghan
The address on the register
Published figure21st of 26 for firms based in the county
20
One Stop Shops that list it
SEAI One Stop Shop register
Published figure19th of 26 for One Stop Shops
139
Heat pump installers who say they work here
SEAI home energy register · read 25 Sep 2026
Published figure25th 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 Monaghan
- Next questionShould you manage it yourself or use a One Stop Shop?
Who says they work in Monaghan, by job
Based in Monaghan 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 Monaghan
213 registered for attic insulation · 13 based in Monaghan
- OHK Energy LTDOne Stop ShopWebsite
- Cunningham Mechanical Services Ltd
- Damien Babington & Sons Ltd
- Ds Fallon
- Finnegan & O'Neill Limited
- Gray Construction & Design Ltd
- McArdle Building Contractors Ltd
- Meegan Insulations
Know the jobs before you call a firm in Monaghan
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 Monaghan
50 registered for cavity wall insulation · 2 based in Monaghan
- OHK Energy LTDOne Stop ShopWebsite
- Meegan Insulations
- 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 Monaghan
198 registered for internal wall insulation · 14 based in Monaghan
- OHK Energy LTDOne Stop ShopWebsite
- Cunningham Mechanical Services Ltd
- Damien Babington & Sons Ltd
- Ds Fallon
- Finnegan & O'Neill Limited
- Gray Construction & Design Ltd
- McArdle Building Contractors Ltd
- Meegan Insulations
External wall insulation installers in Monaghan
78 registered for external wall insulation · 4 based in Monaghan
Window and door installers in Monaghan
135 registered for windows and doors · 8 based in Monaghan
- OHK Energy LTDOne Stop ShopWebsite
- Flanagan Upvc
- Inniskeen UPVC & Aluminium Ltd
- Mallon Windows & Doors
- Mcgorman Pvc Windows And Doors Ltd
- Padraic Costello Upvc Windows & Door
- T&Aglass
- WindowKerr
Heat pump installers in Monaghan
139 registered for heat pumps · 17 based in Monaghan
- OHK Energy LTDOne Stop ShopWebsite
- Allbrite Heatpump Specialists Ltd
- B K Plumbing & Heating
- Cunningham Mechanical Services Ltd
- Eurotech Renewables Ltd
- Finnegan & O'Neill Limited
- G Tech Mechanical Limited
- Grigheat Ltd
Solar panel installers in Monaghan
278 registered for solar panels · 1 based in Monaghan
- OHK Energy LTDOne Stop ShopWebsite
- 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
- 1st Choice Electrical Services LimitedWebsite
- 3D Systems Limited
- A & B = New Energy Limited
Heating controls installers in Monaghan
138 registered for heating controls · 14 based in Monaghan
- OHK Energy LTDOne Stop ShopWebsite
- Allbrite Heatpump Specialists Ltd
- B K Plumbing & Heating
- Cunningham Mechanical Services Ltd
- Duffy Plumbing & Heating
- Eurotech Renewables Ltd
- Finnegan & O'Neill Limited
- Grigheat Ltd
Solar hot water installers in Monaghan
59 registered for solar hot water · 7 based in Monaghan
How Monaghan compares with the other counties
Each job's count against the median county's. Published figure
139 heat pump installers say they work in Monaghan; the median county has 279
Monaghan is 25th of 26 for heat pumps and 26th for companies of every kind. 35 are based here, 21st of 26.
Each bar is Monaghan'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 | Monaghan | Median county | Rank of 26 |
|---|---|---|---|
| Heat pumps | 139 | 279 | 25th |
| Attic insulation | 213 | 343 | 25th |
| Cavity wall insulation | 50 | 87 | 25th |
| Internal wall insulation | 198 | 323 | 25th |
| External wall insulation | 78 | 132 | 25th |
| Windows and doors | 135 | 276 | 25th |
| Solar panels | 278 | 319 | 26th |
| One Stop Shops | 20 | 24 | 19th |
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