Do I have to use one of these companies to get the grant?

Yes. SEAI only pays a grant on work done by a company on its register, and the company claims it on your behalf. Work done by anyone else is not covered, however good it is.

How many quotes should I get in Monaghan?

Three, from companies registered for the same job, and ask each for a written breakdown. Quotes for the same house often differ by thousands because they include different work, not because one is dearer.

Is this list in any order of merit?

No. Companies based in Monaghan come first, then the ones that travel to it, then One Stop Shops, then alphabetical. Being on the register means the paperwork is in order, not that the work is good.

Solar hot water installers in Monaghan

61 companies on the SEAI register are based in or serve Monaghan for solar hot water (register as of 8 September 2026).

Based in Monaghan

6 of them. Sorted by what they are registered for, then by name — this is not an order of merit.

OHK Energy LTDOne Stop Shop
Attic insulationCavity wall insulationExternal wall insulationHeat pumpHeating controlsInternal wall insulationSolar hot waterSolar panelWindow and door
Nationwide · SEAI no. 11118 · Website
Based in Monaghan.
Allbrite Heatpump Specialists Ltd
Heat pumpHeating controlsSolar hot water
Nationwide · SEAI no. 12620
Based in Monaghan.
Cunningham Mechanical Services Ltd
Attic insulationHeat pumpHeating controlsInternal wall insulationSolar hot water
Based in Monaghan · serves Dublin, Leinster and Ulster · SEAI no. 11190
Based in Monaghan.
Marron Activ 8 Energies Ltd
Heat pumpHeating controlsSolar hot water
Nationwide · SEAI no. 13122
Based in Monaghan.
Mullagh Heating And Plumbing Ltd
Heat pumpHeating controlsSolar hot water
Based in Monaghan · serves Dublin, Leinster and Ulster · SEAI no. 13183
Based in Monaghan.
PMK Mechanical Ltd.
Heat pumpHeating controlsSolar hot water
Based in Monaghan · serves Leinster and Ulster · SEAI no. 12886
Based in Monaghan.

Also cover Monaghan from elsewhere (55)

These told SEAI they cover the province Monaghan is in, or listed it among the counties they serve. Ask how far they travel before you go any further. Names only here; each one's full register row is on its own county page. OSS = One Stop Shop.

Activ8 Energies (OSS) · Ashgrove Engineering Ltd T/A Ashgrove Renewables (OSS) · Bayview Contracts Ltd (OSS) · Bord Gais Energy Ltd (OSS) · Breffni Insulation Ltd (OSS) · Churchfield Home Services (OSS) · Cooper Insulation Ltd. (OSS) · Electric Ireland Superhomes (OSS) · Energyfix (OSS) · Envirobead Ltd. (OSS) · Greenwatt Ltd (OSS) · House 2 Home Retrofit Ltd (OSS) · Kingdom Installation Ltd (OSS) · Kingspan Insulation Ltd (OSS) · Kore Retrofit Ltd (OSS) · Moston Construction Ltd (OSS) · Retrofit Design Ltd (OSS) · Retrofit Energy Ireland (OSS) · SSE Airtricity Energy Services Ltd (OSS) · Adrian Sweeney Plumbing & Heating Contractors · Alternative Heating & Cooling Ltd · Anthony Brady Plumbing Limited · Anthony Coughlan Heating & Plumbing TA C&S Construction Services · Breen Heating and Plumbing Ltd · Breffni Renewables Ltd · CGP · Ciocan Construction Ltd · Cok Electrical & Renewables Ltd · Cowan Heating and Plumbing LTD · DT Plumbing & Heating Ltd t/a M3 Plumbing &Heating · Ecoflex Energy Ltd · Efficient Renewables Ltd · Energy Saving Technologies Ltd T/A Energlaze · F Jordan Plumbing + Heating · Ferm Eng Ltd · FND Heating Ltd · FS Plumbing & Heating Ltd · Gilroy Heating Services Ltd · Green Energy Heating Solutions Limited · Greentherm Ltd. · Hagim Gas Ltd · J & D O'Brien Ltd · James Donnelly Eco Heating Ltd · Jason Fahy Heating · LVP Renewables Ltd · M & C Hybrid Energy Ltd · Mc Elligott Heating & Plumbing Limited · N W Renewables Ltd · Niall Smith Energy Renewables Ltd · NZEB Technologies Ltd · Ramor Renewable Heating and Plumbing · Royal Renewables Ltd · Solaregy T/A Sola · Solaris Green Energy · VKG Trading Ltd

What it costs, and what the grant pays

The grant for a semi-detached house is €1,200. These are national figures, not Monaghan ones — SEAI does not publish prices by county.

What it costs on a home like yours, and what you are left paying

Before you sign

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.

How the application works

Ask up to five of them

Fill in one form, tick who you want to hear from, and we pass your details to those companies and nobody else. It costs nothing and you are under no obligation.

Get solar hot water quotes in Monaghan

Common questions

Do I have to use one of these companies to get the grant?: Yes. SEAI only pays a grant on work done by a company on its register, and the company claims it on your behalf. Work done by anyone else is not covered, however good it is.
How many quotes should I get in Monaghan?: Three, from companies registered for the same job, and ask each for a written breakdown. Quotes for the same house often differ by thousands because they include different work, not because one is dearer.
Is this list in any order of merit?: No. Companies based in Monaghan come first, then the ones that travel to it, then One Stop Shops, then alphabetical. Being on the register means the paperwork is in order, not that the work is good.

Other work in Monaghan

Listed on SEAI’s public registers on 8 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.