Window and door installers in Monaghan
135 companies on SEAI's register say they do windows and doors in Monaghan. Only work by a registered company gets the SEAI grant.
- 8 are based in Monaghan; the other 127 cover it from elsewhere.
- The grant for a semi-detached house is €3,000. SEAI’s middle price last year was €7,110.
- Get SEAI’s grant approval before any work starts. SEAI does not pay for work that began first.
- Get three written quotes for the same job. This list is not a ranking.
A fitter lifting a new window into place during a renovation.
Unrecognizable workman installing window in house during renovation process · Ksenia Chernaya · Pexels License
See your grants for windows and doors, and what you’d pay
About 10 seconds. See your numbers first, then get quotes if you want them.
Based in Monaghan
8 of them, from SEAI's register (read 25 September 2026). Not an order of merit. Published figure
- OHK Energy LTDOne Stop ShopAttic insulationCavity wall insulationExternal wall insulationHeat pumpHeating controlsInternal wall insulationSolar hot waterSolar panelWindow and doorBased in Monaghan.
- Flanagan UpvcWindow and doorBased in Monaghan.
- Inniskeen UPVC & Aluminium LtdWindow and doorBased in Monaghan.
- Mallon Windows & DoorsWindow and doorBased in Monaghan.
- Mcgorman Pvc Windows And Doors LtdWindow and doorBased in Monaghan.
- Padraic Costello Upvc Windows & DoorWindow and doorBased in Monaghan.
- T&AglassWindow and doorBased in Monaghan.
- WindowKerrWindow and doorBased in Monaghan.
Also cover Monaghan from elsewhere (127)
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’s 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) · AGI Construction Ltd · Aiden Mcguinness & Son Ltd · Allied Irish Property Ltd · Anchor Windows · Anthony Coughlan Heating & Plumbing TA C&S Construction Services · Apex Engineering · Aru Joinery Ltd · B. Donaghey & Sons · Bc Top Contractors Limited Ta Bct Contractors · Bluebuild Renewables Ltd · Brownes Upvc · C.G. Windows Ltd · Carlson & Co Ltd · Carrabine Joinery Ltd · Castle Windows · Cavan Glass By Design · Cmg Windows · Coastal Windows & Doors · Cozy Windows Limited · Cubo Rooflights Limited · D Carry Construction · Darragh & Gregory Timoney Windows Ltd · Dovista Irl Ltd · Dublin Home Repair Limited · Dungarvan UPVC & Westgate Windows Limited · Dunshaughlin Business Park · Eitas · Energy Saving Technologies Ltd T/A Energlaze · Eoin Kelly And Sons · Errigal Windows & Glazing · Fine Fenestration Limited Ta Woodmarq · Frames Direct Uc · Franmac · G. Kilpatrick Windows Ltd · Galbraith Construction Ltd · Gavin McGonagle Windows · Geraghty Joinery · Gill Windows · Gortahork Windows · Gp Renovation · Grogan And Currid Ltd · Halpin Aluminium & Upvc Ltd · Harstaf Vinduer Ltd · High Prospects Limited · Home Building Solutions T/A HBS Elegant build Ltd · Inframe Windows And Doors Ltd · Interlux Ireland Limited · JJR Insulation Ltd · Jmc Windows & Doors Ltd · Joe Mcdaid Ltd · Joe Rowley Windows Ltd · Jsa Windows And Doors · Lucan Windows And Doors · Lynch Windows Cavan · Lynch Windows Ltd · M&L Repairs Windows Doors · Malone Windows Limited · Martin Conservatories · Martin Windows Limited · Mc Menamin Building Contractors Ltd · McNamee Window Systems Ltd · Metro Insulation Ltd · Mike Doors & Windows · Mk Living Designs Ltd · Modern Home Solutions · Modern Solutions Trade Windows & Doors · Modern Style Home · Montroy Sales Ltd Trading As All Ireland Doors & Windows · Muinin Contracts Ltd Trading As Senator Windows · Munster Joinery (Ire) Unlimited Company · New Generation Doors Ltd · Nordan Vinduer Ireland Ltd · Norlux Windows · Novus Windows Limited · O'Rourke Windows & Glass Ltd · Pandg Callaghan Trading As Timeless Sash Windows Ltd · Pannoncelt Ltd · Pat Kelly & Sons · Pauric Neely · Perfect Fit Modular Ltd Ta Perfect Fit Windows & D · Physalia Ltd Ta Ecoaer · Pml Windows And Doors · Premier Insulations · Premier Solutions NW Ltd · Prestige Windows And Doors · Rb Glazing · Rend Master Ltd · Retrofit Energy Ireland One Stop Shop Ltd · Revolution Doors & Windows Limited · Rio Ents Ltd ta A-Rate · Silver Insight Limited T/A Quality Composite Doors · Solaregy T/A Sola · Solid Insulation Systems Ireland Ltd · Sustainable Warmth Ltd · T Patton And Son Ltd · Teroco Windows And Doors Limited · The Professionals · Timoney Windows & Conservatories Ltd · Tirconaill Contracts Ltd T/A Mc Taggart Insulation · Tpd Windows · Triple Glazed Windows And Doors · Uab Termo Langai · Ucs Design Group Ireland Ltd · Velux Co Ltd · Vindr Vs Ltd · Wds Valerii Hutsko Limited · Weatherproof Windows And Doors Ltd · Wedlock Windows Ltd
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.
The detail
How Monaghan compares
Window and door installers who say they work in each county, from SEAI's register. Published figure
135 window and door installers say they work in Monaghan; the median county has 276
Monaghan is 25th of 26. The most list Kildare, Kilkenny and Wicklow (383); the fewest, Donegal (133). 20 One Stop Shops list Monaghan.
Each bar counts companies on SEAI's register that list the county for windows and doors. Many firms tick a whole province, so counts move in regional steps. A count is choice, not capacity. Registration is paperwork, not a review of their work.
Sources: SEAI home energy, One Stop Shop and solar registers, read 25 Sep 2026
What it costs, and what the grant pays
National figures, not Monaghan ones: SEAI does not publish prices by county. SEAI rule
On a semi-detached house, SEAI's middle price of €7,110 less the grant leaves €4,110 to pay.
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.
Questions people ask
- 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.
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
Updated · grants checked · register read 25 Sep 2026 · How we know · Corrections