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 Kildare?

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 Kildare 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 Kildare

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

30 are based in Kildare; the other 353 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

See your grants for windows and doors, and what you’d pay

Check my home

About 10 seconds. See your numbers first, then get quotes if you want them.

Based in Kildare

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

Home Comfort Retrofits LtdOne Stop ShopAttic insulationCavity wall insulationExternal wall insulationHeat pumpHeating controlsInternal wall insulationSolar hot waterSolar panelWindow and doorBased in Kildare · and 12 other counties · SEAI no. 18012 · WebsiteBased in Kildare.
All Seasons Home Improvements LimitedWindow and doorBased in Kildare · serves Dublin and Leinster · SEAI no. 19662Based in Kildare.
Brightspace Home Improvements LtdWindow and doorBased in Kildare · serves Dublin and Leinster · SEAI no. 19770Based in Kildare.
Burke Bros. Joinery LtdWindow and doorBased in Kildare · serves Leinster · SEAI no. 19979Based in Kildare.
Campbell Glass & Windows Ltd.Window and doorBased in Kildare · serves Dublin and Leinster · SEAI no. 19746Based in Kildare.
Celbridge Window SystemsWindow and doorBased in Kildare · serves Dublin, Leinster, Munster and Connacht · SEAI no. 20128Based in Kildare.
Classic Windows And Doors(Kildare)Window and doorBased in Kildare · serves Dublin and Leinster · SEAI no. 19519Based in Kildare.
Comway Ltd Trading As Home Improvements IrelandWindow and doorBased in Kildare · serves Dublin, Leinster, Munster and Connacht · SEAI no. 19774Based in Kildare.
Cozy Windows LimitedWindow and doorNationwide · SEAI no. 20061Based in Kildare.
Emerald Windows LtdWindow and doorBased in Kildare · serves Dublin and Leinster · SEAI no. 13489Based in Kildare.
Energy Retrofit IrelandAttic insulationExternal wall insulationInternal wall insulationWindow and doorBased in Kildare · serves Dublin, Leinster, Munster and Connacht · SEAI no. 17645Based in Kildare.
Grant Windows & Doors LtdWindow and doorBased in Kildare · serves Dublin and Leinster · SEAI no. 19490Based in Kildare.
Green Energy WindowsWindow and doorBased in Kildare · serves Dublin and Leinster · SEAI no. 19525Based in Kildare.
Harstaf Vinduer LtdWindow and doorNationwide · SEAI no. 20004Based in Kildare.
Jmc Windows & Doors LtdWindow and doorNationwide · SEAI no. 19643Based in Kildare.
John Dempsey Ta Jack Dempsey Windows And DoorsWindow and doorBased in Kildare · serves Dublin and Leinster · SEAI no. 19924Based in Kildare.
Jsa Windows And DoorsWindow and doorNationwide · SEAI no. 19840Based in Kildare.
Luca Line Limited TA Luca Line ServicesAttic insulationExternal wall insulationInternal wall insulationWindow and doorBased in Kildare · serves Dublin and Leinster · SEAI no. 17244Based in Kildare.
Lumavista Windows And DoorsWindow and doorBased in Kildare · serves Dublin and Leinster · SEAI no. 19998Based in Kildare.
Monasterevin Window System's LtdWindow and doorBased in Kildare · serves Leinster · SEAI no. 19611Based in Kildare.
Novus Windows LimitedWindow and doorNationwide · SEAI no. 19858Based in Kildare.
O'Hagan CarpentryWindow and doorBased in Kildare · serves Dublin and Leinster · SEAI no. 19837Based in Kildare.
Pro Fit Pro FixWindow and doorBased in Kildare · serves Dublin, Leinster, Munster and Connacht · SEAI no. 19651Based in Kildare.
Profile Systems Holdings Ltd Trading As K WindowsWindow and doorBased in Kildare · serves Dublin and Leinster · SEAI no. 19523Based in Kildare.
Ray Noonan WindowsWindow and doorBased in Kildare · serves Dublin and Leinster · SEAI no. 19723Based in Kildare.
Robert Earley Carpentry ServicesWindow and doorBased in Kildare · serves Dublin and Leinster · SEAI no. 20042Based in Kildare.
The Period Door Company LtdWindow and doorBased in Kildare · serves Dublin, Leinster, Munster and Connacht · SEAI no. 19485Based in Kildare.
The White Window CompanyWindow and doorBased in Kildare · serves Dublin and Leinster · SEAI no. 19586Based in Kildare.
Weatherglaze Designs LimitedWindow and doorBased in Kildare · serves Leinster · SEAI no. 19631Based in Kildare.
Window WorldWindow and doorBased in Kildare · serves Dublin and Leinster · SEAI no. 19815Based in Kildare.

Also cover Kildare from elsewhere (353)

These told SEAI they cover the province Kildare 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) · Bord Gais Energy Ltd (OSS) · Breffni Insulation Ltd (OSS) · CBM Munster Construction T/A Home Energy Retrofits (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) · House 2 Home Retrofit Ltd (OSS) · Integrate Home Energy Upgrades Limited (OSS) · Kingdom Installation Ltd (OSS) · Kingspan Insulation Ltd (OSS) · Kore Retrofit Ltd (OSS) · Larkrock (OSS) · Leetherm Project Management Ltd (OSS) · Lough Projects (OSS) · Moston Construction Ltd (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 · Abbie Windows & Glazing Ltd · Abc Glazing Specialists Ltd · Abode Construction Ltd. · Absolute Windows & Construction Services Ltd · Accident And Repairs Windows Ltd. · Accord Window Systems Ltd · Ach Windows Ltd · Advantage Energy Systems Ltd · AGI Construction Ltd · Aidan Fitz Windows And Doors Ltd · Aiden Mcguinness & Son Ltd · Airtight Window Systems Ltd · Allied Irish Property Ltd · Am.Wincon · Amazin Glazin · Anthony Birmingham Ltd · Anthony Coughlan Heating & Plumbing TA C&S Construction Services · Apex Engineering · Approved Leinster Windows Limited · Archers Windows · Ashbourne Windows Limited · Athlone Windows · Balbriggan Glass And Windows Ltd · Balco Windows Limited · Bc Top Contractors Limited Ta Bct Contractors · Bernard Byrne Ta Better Windows Limited · Bgk Windows And Doors · Blackrock Windows Wilford Limited · Bluebuild Renewables Ltd · Bluestone Bridge Ltd Ta Hybrid Costello Windows · Bnm Construction Services Ltd · Bonmahon Joinery Ltd · Brealey Windows & Doors Ltd · Breen Brothers Builders Ltd · Brennan Glazing Services Ltd · Bright Vista Group Ltd. · Brownes Upvc · Buckley Windows & Doors · Budget Renovations · Carlson & Co Ltd · Carolan Windows Ltd · Carrabine Joinery Ltd · Carroll Conservatories Ltd · Castle Windows · Castlestone Construction BV Ltd · Cavan Glass By Design · CB Windows Ltd · CK Energy Management Solutions (EMS) Ltd t/a ENCON · CKF Interiors & Insulation · Clear Window Repairs · Clearline Windows And Doors · Clearwater Window Systems Ltd · Clifford And Cronin Windows And Doors Ltd · Clifton Windows Ltd · Climabright Windows & Doors · Connect Windows And Doors · Connolly Aluminium · Crescent Windows And Doors · Cresthaven Ltd · Cruise Windows Limited · Crumlin Windows And Doors · Crystal Complete Building Ltd · Cubo Rooflights Limited · D Carry Construction · D Donohoe Construction Limited · DADN Construction Ltd · Daingean Joinery Ltd · Darren Knox Building Services Ltd · Darren Nolan Windows And Doors · David Donelan Ta Donelan Windows · Deans Windows Enterprise · Decarr Property Maintenance Ltd · Declan Buggy LTD · Deerpark Glazing Ltd · Den Contracts Ireland · Dillons Joinery & Engineering · DL.Windows · Dovista Irl Ltd · Doyle Sustainable Windows T/A Roche Windows · Ds Windows · Dublin Home Repair Limited · Dublin Total Retrofit Solutions · Dundalk Glass And Glazing Limited · Dungarvan UPVC & Westgate Windows Limited · Dunne Ecofit Limited · Dunshaughlin Business Park · E-Scape Windows And Doors Systems · Earthkind Window Systems Ltd · Eco Tech Windows Ltd · Eco Warmer Homes · Eco Window Concepts Limited · Eden Windoor Ltd · Egan Windows Ltd · Eitas · Embassy Home Products Ltd Ta Acorn Windows & Doors · Enerfit Ltd · Energy Saving Technologies Ltd T/A Energlaze · Eoin Kelly And Sons · Excellence Trade And Install Limited Trading As Wa · Excellence Windows & Doors Ltd · Expert Residential PropertyLtd T/A Expert Property · Expert Windows Ltd · Fabwindows Ltd · Farrell Windows And Doors Ltd · Fast Fix Window Repairs Ltd · Fine Fenestration Limited Ta Woodmarq · Finestra Ltd. · Fitzgerald's Sash Windows & Gcc Hostel Ltd · Frames Direct Uc · Gathergrove Trading Ltd Ta John Ruth And Sons · Geraghty Joinery · Gerry Mc Evoy Windows Limited · Glasnevin Windows And Doors Ltd · Glazeright Ltd · Glazing Spares And Repairs Ltd · Global Home Improvements · Goode Energy · Gorey Glass And Glazing · Gp Renovation · Green Dcbm Ltd · Grogan And Currid Ltd · H&F Windows · Halpin Aluminium & Upvc Ltd · Harrisons Windows And Doors · Harvest Energy · Hayestown Aluminium Fabrications · Hazelgrove Windows And Glass Limited · High Prospects Limited · Home Building Solutions T/A HBS Elegant build Ltd · Homeology Ltd · Horizon Windows & Doors Ltd. · Iclever Construction · Inframe Windows And Doors Ltd · Innovate Build Greener Ltd · Interlux Ireland Limited · Irlpol Ltd · Jason Bracken Windows Ltd · Jason Sinclair Windows Limited · JJS Plumbing & Heating Limited · Joe Kelly T/A Nationwide Window Services · Joe Rowley Windows Ltd · John Greaney Building Contractor · John Taylor Construction Ltd · Jr Fixing Ltd · Jsm Windows And Doors · K&D Developments (Sligo) Ltd. · K&K Windows Ltd · Kafkane Trading As Sharp Construction · Kb Home Improvements · Kc Maintenance Mullingar · Kcb Windows And Doors · Keane Windows Limited · Keeley Window Systems · Kieran Merrigan Windows & Sunrooms · Kilcurry Windows · Kokoon Insulation Ltd · Koncept Windows And Doors Ltd · KWRS Ltd Kells Traditional Timber Windows & Doors · Lakeland Interiors · Lakeside Windows Systems Limited · Larkin Aluminium Ltd · Larry Farrell Upvc · Leetherm Insulation Ltd. · Leinster Home And Windows · Leinster Quality Windows & Doors · Lisaderg Construction Ltd · Logik Window Systems Ltd · Luca Windows Ltd · Lucan Windows And Doors · Lynch Windows Ltd · M&L Repairs Windows Doors · Maher Window & Doors Ltd · Mahon Windows Limited · Malone Windows Limited · Mark Healion Windows & Doors · Martin Windows Limited · Mateusz Luczak And Katarzyna Luczak Window Service · MB Windows Ltd · Mccarthy Windows And Doors · Mccormack Aluminium Ltd · Mcgorman Pvc Windows And Doors Ltd · Mchale Windows Ltd · Mckevitt Windows Ltd · Mcmahon And Nagle Environmental Ltd (Trading As Mc · Mcnevin Windows And Doors Ltd · Metro Insulation Ltd · Miax Ltd Ta Kenny Windows · Midland Doors & Windows Ltd · Mike Doors & Windows · Minde Windows · MJS Eco Limited · ML Windows · Modern Home Solutions · Modern Solutions Trade Windows & Doors · Modern Style Home · Moloney Windows Systems Ltd · Monarch Windows & Construction Limited · Montroy Sales Ltd Trading As All Ireland Doors & Windows · Moyle Windows Ltd · Muinin Contracts Ltd Trading As Senator Windows · Munster Joinery (Ire) Unlimited Company · Narod Insulation Contractors Ltd · NE Energy Efficient Homes Ltd · New Build Construction & Window Company · New Frame Windows And Doors Ltd · New Generation Doors Ltd · Niall O Shea Windows Limited · Nolan Glass Limited · Norbec Limited · Nordan Vinduer Ireland Ltd · Norde Blinds & Interiors · Norlux Windows · Nrgi Bespoke Glazing Ltd · O'Connor Building & Carpentry · O'Hare Home Improvements Ltd · O'Rourke Windows & Conservatories · O'Rourke Windows & Glass Ltd · Oakwood Glazing Ltd Ta Grady Joinery · Old Court Construction · Old Manor Windows Ltd. · Orbit Energy Solutions Ltd · P.V.C. Repair Specialists · P&F Windows & Conservatories Ltd Ta Carda Windows · Packie Tobin · Padraic Costello Upvc Windows & Door · Pandg Callaghan Trading As Timeless Sash Windows Ltd · Pannoncelt Ltd · Patrick Carley Trading As Senator Windows · Peak Windows And Doors · Perfect Fit Modular Ltd Ta Perfect Fit Windows & D · Peter Allen Windows And Doors · Physalia Ltd Ta Ecoaer · Pj Furphy Windows And Doors · Pk Services · PK Windows · Platinum Windows And Doors · Pml Windows And Doors · Portlaoise Windows Ltd. · Pouldoon Construction Ltd · Power-Fix Windows And Doors · Premier Insulations · Premium Glazing Systems Ltd · Prestige Energy Windows · Prestige Windows And Doors · Professional Solid Insulation · Pw Windows Ltd · Q Windows And Doors · Rathnure Pvc Limited · Rend Master Ltd · Renual Construction Limited · Retrofit Elite Ltd Retrofit Elite Windows & Doors · Retrofit Energy Ireland One Stop Shop Ltd · Revolution Doors & Windows Limited · Rio Ents Ltd ta A-Rate · Roscommon Windows Ltd · Royal Windows · Ryan And Kennedy · Ryan Spray Foam · S&T Windows Ltd Trading As Sk Windows And Doors · Sean Doyle Windows Ltd · Sean Maher · Secure Energy Systems Limited T/A Energy Glazing · Senator Windows Drogheda · Senator Windows Kilkenny · Senator Windows Ltd · Seven Hills Windows & Doors · Sheridan Windows · Shield · Silver Insight Limited T/A Quality Composite Doors · Slaney Glass & Glazing Ltd · Smart Carpentry Ltd · Smyth Ecostruct Ltd · Solaregy T/A Sola · Solid Insulation Systems Ireland Ltd · Sova Contracting Ltd Ta Perfect Home Windows · Stellar Windows & Doors Ltd · Stone Arches LTD T/A Waterford Insulation · Stonewave Construction Ltd · Summerville Contractors Ltd · Sunlight Windows · Superglaze Windows & Doors Ltd · Superior Trade Frames · Superior Windows And Doors Ltd · Supreme Window Installation Co. Ltd · Sustainable Warmth Ltd · T&Aglass · Teroco Windows And Doors Limited · The Meath Door And Floor Centre Ltd Ta The Door & Floor Company · The Professionals · Thomas Carolan Upvc · Thomas Holton · Thorncrest Ltd · Timoney Windows & Conservatories Ltd · Tirconaill Contracts Ltd T/A Mc Taggart Insulation · Total Window Care · Triple A Window Installations Ltd · Triple Glazed Windows And Doors · Tsl Windows Ltd · Tudor Windows Ltd · Tulway Limited Trading As Wright Windows · Tynan Design Manufacuring Ltd · Uab Termo Langai · Ucs Design Group Ireland Ltd · Ultimate Windows Ltd T/A Senator Windows · Velux Co Ltd · Vincenttullyconstructionltd.T/A Tully Windows and doors · Vindr Vs Ltd · Vistalite Ltd Trading As Aperture Glazing · Walt Windows And Doors · Warmcore Homes Ltd · Warmedge Windows Limited · Warmer Solutions · Wds Valerii Hutsko Limited · Weatherproof Windows And Doors Ltd · Weatherseal Windows Ltd · Wedlock Windows Ltd · Westmeath Windows & Doors Limited · Wexford Home Glazing · Wilkinstown Navan Upvc Windows And Doors · Wilson Windows · Window Solutions · Window World Crimco Ltd · Windows Direct · Windows Repair Tullamore

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.

Check my home

The detail

How Kildare compares

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

Figure 1Published figure

383 window and door installers say they work in Kildare; the median county has 276

Kildare is 1st of 26. The most list Kildare, Kilkenny and Wicklow (383); the fewest, Donegal (133). 29 One Stop Shops list Kildare.

Kildare383
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 Kildare 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.

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 Kildare?: 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 Kildare 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 5 October 2026 · grants checked 10 Oct 2026 · register read 25 Sep 2026 · How we know · Corrections