Window and door installers in Cork
274 companies on SEAI's register say they do windows and doors in Cork. Only work by a registered company gets the SEAI grant.
- 57 are based in Cork; the other 217 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 Cork
57 of them, from SEAI's register (read 25 September 2026). Not an order of merit. Published figure
- Ashgrove Engineering Ltd T/A Ashgrove RenewablesOne Stop ShopAttic insulationCavity wall insulationExternal wall insulationHeat pumpHeating controlsInternal wall insulationSolar hot waterSolar panelWindow and doorBased in Cork.
- Envirobead Ltd.One Stop ShopAttic insulationCavity wall insulationExternal wall insulationHeat pumpHeating controlsInternal wall insulationSolar hot waterWindow and doorBased in Cork.
- Kilgobbin Castle Holdings Ltd t/a InsulexOne Stop ShopAttic insulationCavity wall insulationExternal wall insulationHeat pumpHeating controlsInternal wall insulationSolar hot waterWindow and doorBased in Cork.
- Munster External Wall Insulation T/A SE SystemsOne Stop ShopAttic insulationCavity wall insulationExternal wall insulationHeat pumpHeating controlsInternal wall insulationSolar hot waterSolar panelWindow and doorBased in Cork.
- 2020 Window And Glazing Systems LtdWindow and doorBased in Cork.
- Adrian Cremin Window & Door RepairsWindow and doorBased in Cork.
- Amber Glow Premium LTDWindow and doorBased in Cork.
- Anthony Coughlan Heating & Plumbing TA C&S Construction ServicesAttic insulationCavity wall insulationExternal wall insulationHeat pumpHeating controlsInternal wall insulationSolar hot waterWindow and doorBased in Cork.
- Apex EngineeringAttic insulationHeating controlsInternal wall insulationWindow and doorBased in Cork.
- Ardl Windows Ltd Trading As Senator WindowsWindow and doorBased in Cork.
- Beechgrove Ltd Trading As Ryan'S Timber Machinists And Upvc SuppliersWindow and doorBased in Cork.
- Blarney Windows Systems LtdWindow and doorBased in Cork.
- Bluelite Windows LtdWindow and doorBased in Cork.
- Brigvale LtdWindow and doorBased in Cork.
- Castle AluminiumWindow and doorBased in Cork.
- Classic Windows LtdWindow and doorBased in Cork.
- Clona Windows LtdWindow and doorBased in Cork.
- Connie Manning Windows LtdWindow and doorBased in Cork.
- Countrywide Windows LtdWindow and doorBased in Cork.
- Cremin Glass And MaintenanceWindow and doorBased in Cork.
- D10 Windows And DoorsWindow and doorBased in Cork.
- Deep Retrofit LtdAttic insulationInternal wall insulationWindow and doorBased in Cork.
- Desmond Conservatories LtdWindow and doorBased in Cork.
- East Cork Windows & Door LimitedWindow and doorBased in Cork.
- EcosealWindow and doorBased in Cork.
- Emerald Construction And Engineering LtdWindow and doorBased in Cork.
- Eoin McLoughlinWindow and doorBased in Cork.
- Gnb Windows Ltd Trading As WindowmastersWindow and doorBased in Cork.
- Halo Windows Manufacturing Ltd, Trading As Senator WindowsWindow and doorBased in Cork.
- J.D. Buckley Construction LtdAttic insulationCavity wall insulationExternal wall insulationInternal wall insulationWindow and doorBased in Cork.
- John O'Leary Sales LtdWindow and doorBased in Cork.
- Kelong Glass ServicesWindow and doorBased in Cork.
- Kl WindowsWindow and doorBased in Cork.
- Knockleigh Investments HoldingsWindow and doorBased in Cork.
- L&N Joinery Ltd Trading As Premier Windows & DoorsWindow and doorBased in Cork.
- Leamlara Quality Windows And Doors LimitedWindow and doorBased in Cork.
- Marina WindowsWindow and doorBased in Cork.
- Michael Harrington Upvc LtdWindow and doorBased in Cork.
- Montroy Sales Ltd Trading As All Ireland Doors & WindowsWindow and doorBased in Cork.
- Munster Joinery (Ire) Unlimited CompanyWindow and doorBased in Cork.
- O Leary Windows LtdWindow and doorBased in Cork.
- O'Doherty Aluminium & UpvcWindow and doorBased in Cork.
- O'Donoghue Windows And Doors.Window and doorBased in Cork.
- Ob Windows LtdWindow and doorBased in Cork.
- Pat Enright Glass And Glazing LtdInternal wall insulationWindow and doorBased in Cork.
- Porchways Irl Ltd, Sky WindowsWindow and doorBased in Cork.
- Secure Energy Systems Limited T/A Energy GlazingWindow and doorBased in Cork.
- Sigma Homes LtdAttic insulationInternal wall insulationWindow and doorBased in Cork.
- Southern Home improvements T/a Southern windows and doorsWindow and doorBased in Cork.
- Sova Contracting Ltd Ta Perfect Home WindowsWindow and doorBased in Cork.
- Structural Glazing Specialists LtdWindow and doorBased in Cork.
- Trustedtouchinstallations.ComWindow and doorBased in Cork.
- Weathermaster LtdWindow and doorBased in Cork.
- Wesco Windows LtdWindow and doorBased in Cork.
- West Windows & DoorsWindow and doorBased in Cork.
- Window Warehouse C & C LimitedWindow and doorBased in Cork.
- Winwindows LtdWindow and doorBased in Cork.
Also cover Cork from elsewhere (217)
These told SEAI they cover the province Cork 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.
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) · Electric Ireland Superhomes (OSS) · Energlaze Home Energy Upgrades (OSS) · Energywise Ireland (OSS) · Greenwatt Ltd (OSS) · House 2 Home Retrofit Ltd (OSS) · Kingdom Installation Ltd (OSS) · Kingspan Insulation Ltd (OSS) · Kore Retrofit Ltd (OSS) · Leetherm Project Management Ltd (OSS) · Moston Construction Ltd (OSS) · OHK Energy LTD (OSS) · Retrofit Design Ltd (OSS) · Retrofit Energy Ireland (OSS) · SSE Airtricity Energy Services Ltd (OSS) · Advantage Energy Systems Ltd · AGI Construction Ltd · AJ Windows & Doors Services · Ak Window Systems Ltd · Allied Irish Property Ltd · Aluminium A Rated Windows And Doors Ltd · Aocwindows · Aru Joinery Ltd · Atlas Windows And Doors Repairs · Balco Windows Limited · Barefield Fabrications Ltd Ennis Aluminium · Bc Top Contractors Limited Ta Bct Contractors · Bluestone Bridge Ltd Ta Hybrid Costello Windows · Boland Windows · Bonmahon Joinery Ltd · Bright Vista Group Ltd. · Budget Renovations · C&H Building Contractors Limited · Carlson & Co Ltd · Celbridge Window Systems · City & Country Windows · CK Energy Management Solutions (EMS) Ltd t/a ENCON · Clifford Roofing And Contracting Ltd · Comway Ltd Trading As Home Improvements Ireland · Cozy Windows Limited · Crescent Windows And Doors · Cresthaven Ltd · Cubo Rooflights Limited · D And J Glazing · Damien Walsh Building & Plumbing Contractor Ltd. · Darren Knox Building Services Ltd · Dave Cunningham Carpentry Ltd · Declan Buggy LTD · Deise Windows · Dillons Joinery & Engineering · Dovista Irl Ltd · Dublin Home Repair Limited · Dungarvan UPVC & Westgate Windows Limited · Dunshaughlin Business Park · E-Scape Windows And Doors Systems · Eco Tech Windows Ltd · Eco Window Concepts Limited · Ecosuir Ltd T/A Senator Windows · Edgaras Ziauberis Pom Door Range · Eitas · Embassy Home Products Ltd Ta Acorn Windows & Doors · Enerfit Ltd · Energy Retrofit Ireland · Energy Saving Technologies Ltd T/A Energlaze · Fine Fenestration Limited Ta Woodmarq · Finestra Ltd. · Fit And Refit · Fitzgerald's Sash Windows & Gcc Hostel Ltd · Flanagan Aluminium & Upvc · Fogarty Workshop Ltd · Foley Windows & Doors Ltd · Frames Direct Uc · Garry O'Malley Windows · Gathergrove Trading Ltd Ta John Ruth And Sons · Geraghty Joinery · Gerard Moroney Carpentry And Construction · Glazing Spares And Repairs Ltd · Gm Conservatories Ltd · GOC Windows And Doors Limited · Goode Energy · Gp Renovation · Granagh Windows And Doors · Greenpark Windows Ltd · Harris Windows · Harris Windows And Doors Ltd · Harstaf Vinduer Ltd · Hickey Aluminium · High Prospects Limited · Home Building Solutions T/A HBS Elegant build Ltd · Inframe Windows And Doors Ltd · Interlux Ireland Limited · J O'Mahony Windows And Doors Services Limited · Jason Bracken Windows Ltd · JB Window Door & Repairs Ltd · Jimmy Maher & Co. Ltd · JJS Plumbing & Heating Limited · Jmc Windows & Doors Ltd · Joe Mac Services · Joe O Carroll Windows Ltd (Ta Senator Windows) · Joe Roche Glass & Glazing Ltd · John Greaney Building Contractor · John Spillane Glazing Ltd. · John Taylor Construction Ltd · Jsa Windows And Doors · K&D Developments (Sligo) Ltd. · K&K Windows Ltd · Kb Windows And Doors · Kcb Windows And Doors · Killarney Glass · Killeen Composite Doors Limited · Kingdom Window Systems · KWRS Ltd Kells Traditional Timber Windows & Doors · Larry Farrell Upvc · Leetherm Insulation Ltd. · Limerick Glass & Glazing Ltd · Limerick Glasstech Ltd · Limerick Repairs · Logik Window Systems Ltd · Lucan Windows And Doors · M&L Repairs Windows Doors · Maher Aluminium Ltd Ta Maher Windows · Maher Window & Doors Ltd · Mahon Windows Limited · Martin Windows Limited · Mchale Windows Ltd · Metro Insulation Ltd · Mhs Upvc Ltd · Michael Considine · Michael Dillon Upvc Limited · Michael Dunne Glazing · Michael Fitzgerald Trading Windows And Doors · Midwest Windows Ltd · Mike Doors & Windows · Modern Home Solutions · Modern Style Home · Moloney Windows Systems Ltd · Munster Premier Doors · Munster Window Services And Repairs · Murphy Larkin Timber Products · New Generation Doors Ltd · Newcastle West Glass · Norbec Limited · Nordan Vinduer Ireland Ltd · Norlux Windows · Novus Windows Limited · O'Connell Windows Ltd. Ta Senator Windows Limerick · O'Sheas Windows And Doors Limited · Pandg Callaghan Trading As Timeless Sash Windows Ltd · Pannoncelt Ltd · Pat Ryan Windows Ltd · Patrick Hough · Peter Allen Windows And Doors · Physalia Ltd Ta Ecoaer · PK Windows · Pouldoon Construction Ltd · Premier Insulations · Premium Glazing Systems Ltd · Prestige Windows And Doors · Pro Fit Pro Fix · Pw Windows Ltd · Rend Master Ltd · Renual Construction Limited · Retrofit Energy Ireland One Stop Shop Ltd · Revolution Doors & Windows Limited · Rio Ents Ltd ta A-Rate · Roscommon Windows Ltd · Ryan Spray Foam · Ryans Windows & Doors Ltd · Sean Barron Limited Ta Sean Barron Windows And Doo · Sean Doyle Windows Ltd · Sean Maher · Senator Windows Ltd · Seven Hills Windows & Doors · Shelldon Farm Enterprises Limited Ta Senator Windo · Silver Insight Limited T/A Quality Composite Doors · SM Windows & Doors Ltd · SMB Construction · SNW Construction Limited · Solaregy T/A Sola · Solid Insulation Systems Ireland Ltd · Stone Arches LTD T/A Waterford Insulation · Superior Doors · Superior Trade Frames · Sustainable Warmth Ltd · Swiftwell Ltd Ta The Window Company · T.S.Windows & Doors · Teroco Windows And Doors Limited · The Period Door Company Ltd · The Window Doctor Ltd · Thomas Cosgrave Ta Cosgrave Enterprise · Timoney Windows & Conservatories Ltd · Tipperary Windows & Home Improvements Ltd · Tirconaill Contracts Ltd T/A Mc Taggart Insulation · Tmg Specialist Installations · Tom Murphy Windows · Tommy Allen · Tommy Meehan Windows & Doors · Tony Quigley Windows Ltd · Triple Glazed Windows And Doors · Tynan Design Manufacuring Ltd · Uab Termo Langai · Ucs Design Group Ireland Ltd · Velux Co Ltd · Vincenttullyconstructionltd.T/A Tully Windows and doors · Walsh Windows · Warmcore Homes Ltd · Warmer Solutions · Wds Valerii Hutsko Limited · Weathermaster Kerry Ltd · Weglarz Construction · Wildwood Windows (Wildwood Building And Landscaping) · William Flynn Windows & Door Ltd · Windows Direct
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 Cork compares
Window and door installers who say they work in each county, from SEAI's register. Published figure
274 window and door installers say they work in Cork; the median county has 276
Cork is 16th of 26. The most list Kildare, Kilkenny and Wicklow (383); the fewest, Donegal (133). 23 One Stop Shops list Cork.
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 Cork 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 Cork?
- 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 Cork 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