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Window and door installers in Dublin

363 companies on SEAI's register say they do windows and doors in Dublin. Only work by a registered company gets the SEAI grant.

  • 135 are based in Dublin; the other 228 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 seen from behind lifting a new window into an opening during a renovation.

A fitter lifting a new window into place during a renovation.

Unrecognizable workman installing window in house during renovation process · Ksenia Chernaya · Pexels License

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Based in Dublin

135 of them, from SEAI's register (read 25 September 2026). Not an order of merit. Published figure

The other 15 based in Dublin

Supreme Window Installation Co. Ltd · Taw Dublin Ltd · Teroco Windows And Doors Limited · Tsl Windows Ltd · Ucs Design Group Ireland Ltd · Ultimate Windows Ltd T/A Senator Windows · Velux Co Ltd · Vindr Vs Ltd · Vistalite Ltd Trading As Aperture Glazing · Walt Windows And Doors · Warmedge Windows Limited · Wilson Windows · Window Solutions · Windows & Doors Service · Your Build Construction Limited

Also cover Dublin from elsewhere (228)

These told SEAI they cover the province Dublin 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) · Aspen Eco Power (OSS) · Bayview Contracts Ltd (OSS) · Breffni Insulation Ltd (OSS) · Churchfield Home Services (OSS) · Cooper Insulation Ltd. (OSS) · Electric Ireland Superhomes (OSS) · Energlaze Home Energy Upgrades (OSS) · Energyfix (OSS) · Envirobead Ltd. (OSS) · Greenwatt Ltd (OSS) · Home Comfort Retrofits Ltd (OSS) · Integrate Home Energy Upgrades Limited (OSS) · Kilgobbin Castle Holdings Ltd t/a Insulex (OSS) · Kingdom Installation Ltd (OSS) · Kingspan Insulation Ltd (OSS) · Kore Retrofit Ltd (OSS) · Larkrock (OSS) · Munster External Wall Insulation T/A SE Systems (OSS) · OHK Energy LTD (OSS) · Retrofit Design Ltd (OSS) · Retrofit Energy Ireland (OSS) · SSE Airtricity Energy Services Ltd (OSS) · WiEnergy (OSS) · A1 Windows And Doors Limited · Abc Glazing Specialists Ltd · Ach Windows Ltd · Advantage Energy Systems Ltd · Aidan Fitz Windows And Doors Ltd · All Seasons Home Improvements Limited · Anthony Birmingham Ltd · Anthony Coughlan Heating & Plumbing TA C&S Construction Services · Apex Engineering · Approved Leinster Windows Limited · Archers Windows · Ashbourne Windows Limited · Balco Windows Limited · Bc Top Contractors Limited Ta Bct Contractors · Blackrock Windows Wilford Limited · Bluestone Bridge Ltd Ta Hybrid Costello Windows · Bnm Construction Services Ltd · Bonmahon Joinery Ltd · Breen Brothers Builders Ltd · Brightspace Home Improvements Ltd · Buckley Windows & Doors · Budget Renovations · Campbell Glass & Windows Ltd. · Carlos Windows · Carrabine Joinery Ltd · Carroll Conservatories Ltd · Castle Windows · CB Windows Ltd · Celbridge Window Systems · CK Energy Management Solutions (EMS) Ltd t/a ENCON · Classic Windows And Doors(Kildare) · Clear Window Repairs · Clearwater Window Systems Ltd · Comway Ltd Trading As Home Improvements Ireland · Connect Windows And Doors · Cozy Windows Limited · Crescent Windows And Doors · Crystal Complete Building Ltd · Cubo Rooflights Limited · D Carry Construction · DADN Construction Ltd · Darragh & Gregory Timoney Windows Ltd · Decarr Property Maintenance Ltd · Declan Buggy LTD · Dillons Joinery & Engineering · DL.Windows · Dovista Irl Ltd · Ds Windows · Dublin Home Repair Limited · Dundalk Glass And Glazing Limited · Dungarvan UPVC & Westgate Windows Limited · Dunne Ecofit Limited · Dunshaughlin Business Park · Earthkind Window Systems Ltd · Eco Tech Windows Ltd · Eco Warmer Homes · Eco Window Concepts Limited · Eden Windoor Ltd · Egan Windows Ltd · Embassy Home Products Ltd Ta Acorn Windows & Doors · Emerald Windows Ltd · Energy Retrofit Ireland · Energy Saving Technologies Ltd T/A Energlaze · Eoin Kelly And Sons · Excellence Trade And Install Limited Trading As Wa · Excellence Windows & Doors Ltd · Farrell Windows And Doors Ltd · Finestra Ltd. · Flanagan Upvc · Frames Direct Uc · Gathergrove Trading Ltd Ta John Ruth And Sons · Geraghty Joinery · Gerry Mc Evoy Windows Limited · Glazepro Ltd Trading As O Sullivan Glazing Systems · Glazeright Ltd · Grant Windows & Doors Ltd · Green Energy Windows · Grogan And Currid Ltd · H&F Windows · Halpin Aluminium & Upvc Ltd · Harstaf Vinduer Ltd · Hazelgrove Windows And Glass Limited · Home Building Solutions T/A HBS Elegant build Ltd · Homeology Ltd · Inframe Windows And Doors Ltd · Inniskeen UPVC & Aluminium Ltd · Interlux Ireland Limited · Jason Bracken Windows Ltd · JJR Insulation Ltd · Jmc Windows & Doors Ltd · Joe Mcdaid Ltd · Joe Rowley Windows Ltd · John Dempsey Ta Jack Dempsey Windows And Doors · John Greaney Building Contractor · Jsa Windows And Doors · K&D Developments (Sligo) Ltd. · K&K Windows Ltd · Kcb Windows And Doors · Kilcurry Windows · KWRS Ltd Kells Traditional Timber Windows & Doors · Lakeland Interiors · Lakeside Windows Systems Limited · Larkin Aluminium Ltd · Leetherm Insulation Ltd. · Leinster Home And Windows · Logik Window Systems Ltd · Luca Line Limited TA Luca Line Services · Lumavista Windows And Doors · Lynch Windows Ltd · M&L Repairs Windows Doors · Mahon Windows Limited · Malone Windows Limited · Martin Windows Limited · Mc Menamin Building Contractors Ltd · Mccarthy Windows And Doors · Mcgorman Pvc Windows And Doors Ltd · Mchale Windows Ltd · Metro Insulation Ltd · Mike Doors & Windows · Minde Windows · MJS Eco Limited · Mk Living Designs Ltd · Modern Home Solutions · Modern Style Home · Moloney Windows Systems Ltd · Montroy Sales Ltd Trading As All Ireland Doors & Windows · Moyle Windows Ltd · Munster Joinery (Ire) Unlimited Company · NE Energy Efficient Homes Ltd · New Generation Doors Ltd · Norbec Limited · Norde Blinds & Interiors · Norlux Windows · Novus Windows Limited · Nrgi Bespoke Glazing Ltd · O'Hagan Carpentry · O'Hare Home Improvements Ltd · O'Rourke Windows & Glass Ltd · Oakwood Glazing Ltd Ta Grady Joinery · Padraic Costello Upvc Windows & Door · Pandg Callaghan Trading As Timeless Sash Windows Ltd · Patrick Carley Trading As Senator Windows · Perfect Fit Modular Ltd Ta Perfect Fit Windows & D · Peter Allen Windows And Doors · Physalia Ltd Ta Ecoaer · Pml Windows And Doors · Portlaoise Windows Ltd. · Pouldoon Construction Ltd · Premier Insulations · Premium Glazing Systems Ltd · Prestige Energy Windows · Prestige Windows And Doors · Pro Fit Pro Fix · Professional Solid Insulation · Profile Systems Holdings Ltd Trading As K Windows · Pw Windows Ltd · Rathnure Pvc Limited · Ray Noonan Windows · Rend Master Ltd · Renual Construction Limited · Retrofit Energy Ireland One Stop Shop Ltd · Revolution Doors & Windows Limited · Robert Earley Carpentry Services · Roscommon Windows Ltd · Ryan And Kennedy · Ryan Spray Foam · S&T Windows Ltd Trading As Sk Windows And Doors · Sean Doyle Windows Ltd · Secure Energy Systems Limited T/A Energy Glazing · Seven Hills Windows & Doors · Shepherd Contracting Ltd · Sheridan Windows · Silver Insight Limited T/A Quality Composite Doors · SM Windows & Doors Ltd · Solaregy T/A Sola · Solid Insulation Systems Ireland Ltd · Sova Contracting Ltd Ta Perfect Home Windows · Sunlight Windows · Superglaze Windows & Doors Ltd · Superior Windows And Doors Ltd · Sustainable Warmth Ltd · T&Aglass · The Meath Door And Floor Centre Ltd Ta The Door & Floor Company · The Period Door Company Ltd · The Professionals · The White Window Company · Thomas Carolan Upvc · Thomas Holton · Thorncrest Ltd · Timoney Windows & Conservatories Ltd · Tirconaill Contracts Ltd T/A Mc Taggart Insulation · Triple Glazed Windows And Doors · Tudor Windows Ltd · Tulway Limited Trading As Wright Windows · Uab Termo Langai · Warmcore Homes Ltd · Warmer Solutions · Wds Valerii Hutsko Limited · Weatherproof Windows And Doors Ltd · Wedlock Windows Ltd · Westmeath Windows & Doors Limited · Window World · Window World Crimco Ltd

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The detail

How Dublin compares

Window and door installers who say they work in each county, from SEAI's register. Published figure

Figure 1Published figure

363 window and door installers say they work in Dublin; the median county has 276

Dublin is 12th of 26. The most list Kildare, Kilkenny and Wicklow (383); the fewest, Donegal (133). 29 One Stop Shops list Dublin.

  • Dublin363
  • The median county276
  • Most: Kildare, Kilkenny and Wicklow383
  • Fewest: Donegal133

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 Dublin 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.

  1. Wait for your grant approval email before any work starts. SEAI does not pay for work that began before it was approved.
  2. Get at least three quotes, and check each one covers the same job. The cheapest quote is often the one that leaves something out.
  3. 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.
  4. Get it in writing: what is being done, what it costs, when it starts and when it is finished.

How the application works →

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 Dublin?
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 Dublin 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