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.

Window and door installers in Dublin

363 companies on the SEAI register are based in or serve Dublin for windows and doors (register as of 8 September 2026).

A fitter seen from behind lifting a new window into an opening during a renovation. — Unrecognizable workman installing window in house during renovation process · Ksenia Chernaya · Pexels License · Photo credits

Based in Dublin

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

Bord Gais Energy LtdOne Stop Shop
Attic insulationCavity wall insulationExternal wall insulationHeat pumpHeating controlsInternal wall insulationSolar hot waterSolar panelWindow and door
Nationwide · SEAI no. 14183 · Website
Based in Dublin.
House 2 Home Retrofit LtdOne Stop Shop
Attic insulationCavity wall insulationExternal wall insulationHeat pumpHeating controlsInternal wall insulationSolar hot waterWindow and door
Nationwide · SEAI no. 15918 · Website
Based in Dublin.
Lough ProjectsOne Stop Shop
Attic insulationCavity wall insulationExternal wall insulationHeat pumpHeating controlsInternal wall insulationSolar hot waterWindow and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 17674 · Website
Based in Dublin.
Moston Construction LtdOne Stop Shop
Attic insulationCavity wall insulationExternal wall insulationHeat pumpHeating controlsInternal wall insulationSolar hot waterWindow and door
Nationwide · SEAI no. 16068 · Website
Based in Dublin.
A Plus Energy Windows & Doors
Window and door
Based in Dublin · SEAI no. 19818
Based in Dublin.
AA Accessible Glass
Window and door
Based in Dublin · SEAI no. 19682
Based in Dublin.
Abbie Windows & Glazing Ltd
Window and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 19592
Based in Dublin.
Abode Construction Ltd.
Window and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 20048
Based in Dublin.
Accident And Repairs Windows Ltd.
Window and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 19894
Based in Dublin.
Accord Window Systems Ltd
Window and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 19832
Based in Dublin.
Acme Homes Ltd
Window and door
Based in Dublin · SEAI no. 19634
Based in Dublin.
AGI Construction Ltd
Attic insulationInternal wall insulationWindow and door
Nationwide · SEAI no. 19843
Based in Dublin.
Airtight Window Systems Ltd
Window and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 19517
Based in Dublin.
Allied Irish Property Ltd
Attic insulationInternal wall insulationWindow and door
Based in Dublin · serves Dublin, Leinster, Munster and Ulster · SEAI no. 20162
Based in Dublin.
Alustyle Limited
Window and door
Based in Dublin · SEAI no. 19999
Based in Dublin.
Amazin Glazin
Window and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 19870
Based in Dublin.
Andrew Lynch Glass & Glazing Co. Ltd
Window and door
Based in Dublin · SEAI no. 20036
Based in Dublin.
Aru Joinery Ltd
Window and door
Based in Dublin · serves Dublin, Munster, Connacht and Ulster · SEAI no. 19512
Based in Dublin.
Avondale Windows Ltd
Window and door
Based in Dublin · SEAI no. 14143
Based in Dublin.
Ayrfield Windows
Window and door
Based in Dublin · SEAI no. 19841
Based in Dublin.
Bernard Byrne Ta Better Windows Limited
Window and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 19578
Based in Dublin.
Bgk Windows And Doors
Window and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 19491
Based in Dublin.
Bluebuild Renewables Ltd
Attic insulationExternal wall insulationHeat pumpHeating controlsInternal wall insulationWindow and door
Based in Dublin · serves Dublin, Leinster and Ulster · SEAI no. 17110
Based in Dublin.
Bright Vista Group Ltd.
Window and door
Based in Dublin · serves Dublin, Leinster, Munster and Connacht · SEAI no. 19930
Based in Dublin.
C & S Upvc Windows Limited
Window and door
Based in Dublin · SEAI no. 19556
Based in Dublin.
Carlson & Co Ltd
Window and door
Nationwide · SEAI no. 19692
Based in Dublin.
Carolan Windows Ltd
Window and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 19528
Based in Dublin.
Castlestone Construction BV Ltd
Attic insulationExternal wall insulationInternal wall insulationWindow and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 17513
Based in Dublin.
Chris Doyle Windows And Doors
Window and door
Based in Dublin · SEAI no. 19500
Based in Dublin.
CKF Interiors & Insulation
Attic insulationExternal wall insulationInternal wall insulationWindow and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 13815
Based in Dublin.
Classic Window Replacements
Window and door
Based in Dublin · SEAI no. 17941
Based in Dublin.
Claxton Windows Limited
Window and door
Based in Dublin · SEAI no. 19694
Based in Dublin.
Clearline Windows And Doors
Window and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 19804
Based in Dublin.
Clifford And Cronin Windows And Doors Ltd
Window and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 19600
Based in Dublin.
Clifton Windows Ltd
Window and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 19563
Based in Dublin.
Climabright Windows & Doors
Window and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 19831
Based in Dublin.
Composite Doors Irl Ltd
Window and door
Based in Dublin · SEAI no. 19620
Based in Dublin.
Creighton Windows Limited
Window and door
Based in Dublin · SEAI no. 19742
Based in Dublin.
Crumlin Windows And Doors
Window and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 19647
Based in Dublin.
D Donohoe Construction Limited
Attic insulationInternal wall insulationWindow and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 10941
Based in Dublin.
Dbest Windows & Doors Ltd
Window and door
Based in Dublin · SEAI no. 19560
Based in Dublin.
Deans Windows Enterprise
Window and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 19668
Based in Dublin.
Den Contracts Ireland
Window and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 19564
Based in Dublin.
Derek Griffin LTD T/A A-rated building services
Attic insulationExternal wall insulationInternal wall insulationWindow and door
Based in Dublin · SEAI no. 15196
Based in Dublin.
Docon Developments Ltd
Attic insulationHeat pumpInternal wall insulationWindow and door
Based in Dublin · SEAI no. 19419
Based in Dublin.
Doyle Sustainable Windows T/A Roche Windows
Window and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 19493
Based in Dublin.
Dublin Total Retrofit Solutions
Attic insulationWindow and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 19409
Based in Dublin.
Eco Works Ltd
Attic insulationInternal wall insulationWindow and door
Based in Dublin · SEAI no. 17859
Based in Dublin.
Edwardyna Construction Ltd
Attic insulationExternal wall insulationHeat pumpInternal wall insulationWindow and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 17285
Based in Dublin.
Eitas
Attic insulationHeat pumpHeating controlsInternal wall insulationWindow and door
Nationwide · SEAI no. 18336
Based in Dublin.
Elite Composite Doors Limited
Window and door
Based in Dublin · SEAI no. 19873
Based in Dublin.
Expert Residential PropertyLtd T/A Expert Property
Attic insulationExternal wall insulationHeat pumpHeating controlsInternal wall insulationWindow and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 17866
Based in Dublin.
Expert Windows Ltd
Window and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 19575
Based in Dublin.
Fabwindows Ltd
Window and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 19478
Based in Dublin.
Fairco Windows & Doors
Window and door
Based in Dublin · SEAI no. 19584
Based in Dublin.
Fine Fenestration Limited Ta Woodmarq
Window and door
Nationwide · SEAI no. 19649
Based in Dublin.
Fior Insulation & Fire Protection
Attic insulationExternal wall insulationInternal wall insulationWindow and door
Based in Dublin · SEAI no. 17564
Based in Dublin.
Fkb Glass & Glazing Ltd
Window and door
Based in Dublin · SEAI no. 19763
Based in Dublin.
Fusion Glass
Window and door
Based in Dublin · SEAI no. 20126
Based in Dublin.
GK Building Services
Internal wall insulationSolar hot waterWindow and door
Based in Dublin · SEAI no. 15240
Based in Dublin.
Glasnevin Windows And Doors Ltd
Window and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 20124
Based in Dublin.
Global Home Improvements
Window and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 11476
Based in Dublin.
Gp Renovation
Window and door
Nationwide · SEAI no. 19752
Based in Dublin.
Harrisons Windows And Doors
Window and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 19822
Based in Dublin.
Harvest Energy
Window and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 19725
Based in Dublin.
High Prospects Limited
Window and door
Nationwide · SEAI no. 19470
Based in Dublin.
Homeyourway
Window and door
Based in Dublin · SEAI no. 20183
Based in Dublin.
Horizon Windows & Doors Ltd.
Window and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 19700
Based in Dublin.
Iclever Construction
Attic insulationInternal wall insulationWindow and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 17497
Based in Dublin.
Inspired Renovations Limited
Attic insulationWindow and door
Based in Dublin · SEAI no. 20164
Based in Dublin.
J & K Dungan Joinery Ltd
Window and door
Based in Dublin · SEAI no. 20176
Based in Dublin.
James Quigley
Attic insulationInternal wall insulationWindow and door
Based in Dublin · SEAI no. 17663
Based in Dublin.
Jason Sinclair Windows Limited
Window and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 19536
Based in Dublin.
Jsm Windows And Doors
Window and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 19817
Based in Dublin.
Just Joinery Ltd Ta Divine Ireland Windows & Doors
Window and door
Based in Dublin · serves Dublin, Leinster, Munster and Connacht · SEAI no. 19516
Based in Dublin.
Kafkane Trading As Sharp Construction
Window and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 19839
Based in Dublin.
Kb Home Improvements
Window and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 19929
Based in Dublin.
Keane Windows Limited
Window and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 19618
Based in Dublin.
Keeley Window Systems
Window and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 19809
Based in Dublin.
Kokoon Insulation Ltd
Attic insulationExternal wall insulationInternal wall insulationWindow and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 15835
Based in Dublin.
Koncept Windows And Doors Ltd
Window and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 19568
Based in Dublin.
Kp Windows Ltd
Window and door
Based in Dublin · SEAI no. 19514
Based in Dublin.
Lisaderg Construction Ltd
Attic insulationHeating controlsWindow and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 12893
Based in Dublin.
Luca Windows Ltd
Window and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 19974
Based in Dublin.
Lucan Windows And Doors
Window and door
Nationwide · SEAI no. 19630
Based in Dublin.
MB Windows Ltd
Window and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 19537
Based in Dublin.
Mcmahon And Nagle Environmental Ltd (Trading As Mc
Window and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 19520
Based in Dublin.
Mcnevin Windows And Doors Ltd
Window and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 19505
Based in Dublin.
Miax Ltd Ta Kenny Windows
Window and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 19473
Based in Dublin.
Modern Solutions Trade Windows & Doors
Window and door
Based in Dublin · serves Dublin, Leinster, Connacht and Ulster · SEAI no. 20046
Based in Dublin.
Narod Insulation Contractors Ltd
Attic insulationExternal wall insulationInternal wall insulationWindow and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 17977
Based in Dublin.
New Build Construction & Window Company
Window and door
Based in Dublin · serves Dublin, Leinster and Connacht · SEAI no. 20093
Based in Dublin.
New Frame Windows And Doors Ltd
Window and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 19506
Based in Dublin.
NewSpace Building Services Ltd
Attic insulationInternal wall insulationWindow and door
Based in Dublin · SEAI no. 16796
Based in Dublin.
Nordan Vinduer Ireland Ltd
Window and door
Nationwide · SEAI no. 19724
Based in Dublin.
O'Rourke Windows & Conservatories
Window and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 19990
Based in Dublin.
Odl Builders Ltd
Window and door
Based in Dublin · SEAI no. 20161
Based in Dublin.
Old Court Construction
Attic insulationExternal wall insulationInternal wall insulationWindow and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 13623
Based in Dublin.
Omnia Retrofit Construction Ltd
Attic insulationHeating controlsInternal wall insulationWindow and door
Based in Dublin · SEAI no. 14903
Based in Dublin.
Orbit Energy Solutions Ltd
Window and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 10292
Based in Dublin.
Orion Windows Limited
Window and door
Based in Dublin · SEAI no. 19591
Based in Dublin.
P&F Windows & Conservatories Ltd Ta Carda Windows
Window and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 19508
Based in Dublin.
Pannoncelt Ltd
Window and door
Nationwide · SEAI no. 15466
Based in Dublin.
Peak Windows And Doors
Window and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 19638
Based in Dublin.
Piaras Enterprises Ltd T/A Green Energy Homes
Attic insulationExternal wall insulationHeat pumpHeating controlsInternal wall insulationSolar hot waterWindow and door
Based in Dublin · SEAI no. 13594
Based in Dublin.
Q Windows And Doors
Window and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 19699
Based in Dublin.
Refined Home Solutions
Window and door
Based in Dublin · SEAI no. 19905
Based in Dublin.
Rennova Windows And Doors Ltd
Window and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 19680
Based in Dublin.
Rio Ents Ltd ta A-Rate
Attic insulationInternal wall insulationWindow and door
Nationwide · SEAI no. 19806
Based in Dublin.
Riptide Hardware Limited Ta Doorsplusfloors
Window and door
Based in Dublin · SEAI no. 19996
Based in Dublin.
Rocnua Limited
Attic insulationInternal wall insulationWindow and door
Based in Dublin · SEAI no. 17267
Based in Dublin.
Royal Windows
Window and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 19842
Based in Dublin.
Sean Paul Construction Ltd
Attic insulationExternal wall insulationHeat pumpHeating controlsInternal wall insulationWindow and door
Based in Dublin · serves Dublin and Connacht · SEAI no. 18236
Based in Dublin.
Shield
Window and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 19910
Based in Dublin.
Smart Carpentry Ltd
Attic insulationInternal wall insulationWindow and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 18258
Based in Dublin.
Stellar Windows & Doors Ltd
Window and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 19973
Based in Dublin.
Stephen Slater
Attic insulationInternal wall insulationWindow and door
Based in Dublin · SEAI no. 19759
Based in Dublin.
Stonewave Construction Ltd
Attic insulationInternal wall insulationWindow and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 20069
Based in Dublin.
Supreme Window Installation Co. Ltd
Attic insulationInternal wall insulationWindow and door
Based in Dublin · serves Dublin and Leinster · SEAI no. 13238
Based in Dublin.
Taw Dublin Ltd
Window and door
Based in Dublin · SEAI no. 19722
Based in Dublin.

The other 15 based in Dublin

Teroco Windows And Doors Limited · Topglass · Tsl Windows Ltd · Ucs Design Group Ireland Ltd · Ultimate Windows Ltd T/A Senator Windows · Velux Co Ltd · Vibrant Windows And Doors 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 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 · Bnm Construction Services Ltd · Bonmahon Joinery Ltd · Breen Brothers Builders Ltd · Brenglaze Window Systems L T D · Bridge Crest Ltd T/A Senator Windows · 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 Glass & Glazing Ltd · 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 · DADN Construction Ltd · Daingean Upvc Windows And Doors · Darragh & Gregory Timoney Windows Ltd · Decarr Property Maintenance Ltd · Declan Buggy LTD · Deerpark Windows Gateway 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 · 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 · Jack Yore & Sons (Sales) Ltd. · 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 · Montroy Sales Ltd Trading As All Ireland Doors & Windows · Moyle Windows Ltd · Munster Joinery (Ire) Unlimited Company · NE Energy Efficient Homes Ltd · New Doors And Floors Limited · New Generation Doors Ltd · Norbec Limited · Norde Blinds & Interiors · Norlux Windows · 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 · Weatherproof Windows And Doors Ltd · Wedlock Windows Ltd · Westmeath Windows & Doors Limited · Window World · Window World Crimco Ltd

What it costs, and what the grant pays

The grant for a semi-detached house is €3,000. SEAI recorded a middle price of €9,085 for this work last year, which leaves about €6,085 for you to pay. These are national figures, not Dublin ones — SEAI does not publish prices by county.

This job has no SEAI median price; the cost above is an estimate.

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 windows and doors quotes in Dublin

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 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.

Other work in Dublin

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.