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Window Replacement in Dublin
Replacing your windows? This guide compares uPVC, timber and aluminium, shows what a typical house costs, explains energy ratings and grants, and tells you what to check in a quote.
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- 📍 Coverage Area: Dublin
- 💶 Typical Cost: €6,000–€18,000 for a typical house
- 🛠️ Response Type: Local vetted operators
- 🛡️ Standards: Certified & insured tradespeople
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[Glazier] in Dublin
Our vetted local tradespeople cover Dublin, ready to get your issue assessed and resolved as quickly as possible.
- Typical cost: €6,000–€18,000 for a house
- uPVC, timber and aluminium compared
- Energy ratings and grants explained
- What a good window quote includes
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Choosing the right windows
The frame material affects price, appearance, maintenance and how long the windows last. Here's how the main options compare for a typical Dublin home:
| Material | Price | Lifespan | Best for |
|---|---|---|---|
| uPVC | Lowest | 25–35 years | Most homes; low maintenance and good insulation |
| Aluminium | Higher | 40+ years | Modern homes and extensions; slim frames and large glass |
| Timber | Higher | 40–60 years if maintained | Period homes and conservation areas |
| Alu-clad timber | Highest | 50+ years | Timber inside, low-maintenance aluminium outside |
Double or triple glazing? Modern A-rated double glazing is enough for most homes. Triple glazing makes sense in deep retrofits, north-facing or exposed rooms, or where noise is a problem, but it costs more and the frames are heavier.
What the numbers mean: the U-value measures heat loss, and lower is better. Good modern windows are around 1.2–1.4 W/m²K, while old single glazing can be above 5.
What to check before you hire a glazier
- Ask for the U-value and energy rating of the windows quoted
- Check ventilation is included, as airtight windows can cause condensation
- Confirm making good and disposal are included
- Ask whether the installer is approved for any grant you plan to claim
- Get the guarantee on frames, glass and installation in writing
- Never pay the full amount upfront; a deposit for manufacture is normal
What new windows cost
For a typical three-bed semi-detached house with around 10 windows and a back door, expect:
| Option | Typical fitted cost |
|---|---|
| uPVC double glazed | €6,000–€12,000 |
| uPVC triple glazed | €8,000–€14,000 |
| Aluminium | €10,000–€18,000 |
| Timber or alu-clad timber | €12,000–€22,000+ |
What affects the price:
- Number and size of windows, and any unusual shapes or bays
- Glass specification: triple glazing, acoustic or solar-control glass
- Colour finishes, which often cost more than white
- Making good inside and out, including new sills and reveals
- Access for upstairs windows
Prices include 13.5% VAT on supply and fit. These are indicative 2026 Dublin ranges.
Grants, planning and what a quote should include
Grants and planning
Grants: SEAI has offered grants for window and external door upgrades for qualifying older homes, with conditions on the contractor, the product and getting approval before work starts. Check seai.ie for current terms before signing a contract. If you're planning wider upgrades, windows can also form part of a one-stop-shop retrofit.
Planning: like-for-like replacement usually doesn't need planning permission. It may be needed if you change the size or style of windows on the front of the house, live in a protected structure, or are in an architectural conservation area.
What a good window quote includes
- The frame and glass specification, including the U-value
- Removal and disposal of the old windows
- Making good inside and outside, including sills and plaster reveals
- Trickle vents or other ventilation, so new airtight windows don't cause condensation
- Security features such as locking handles and laminated glass at ground level
- A written guarantee on frames, glass units and installation
How long it takes: windows are usually made to order in 4–8 weeks. Fitting takes one to two days for a typical house, room by room, so you're never left with an open house overnight.
We cover window replacement in every area below. Choose your district for local information.
| District | Areas covered |
|---|---|
| North Dublin City | Artane, Cabra, Clontarf, Coolock, Drumcondra, East Wall, Fairview, Glasnevin, Phibsborough, Stoneybatter |
| Dublin North Coast | Raheny, Baldoyle, Donaghmede, Howth, Sutton, Portmarnock, Malahide |
| North County Dublin | Swords, Lusk, Rush, Skerries |
| Dublin 15 | Blanchardstown, Castleknock, Mulhuddart, Ongar, Hansfield, Ashtown |
| West Dublin & Leixlip | Chapelizod, Palmerstown, Lucan, Leixlip, Adamstown, Clondalkin |
| South West Dublin | Tallaght, Citywest, Firhouse, Knocklyon, Ballyboden, Templeogue, Walkinstown, Kimmage, Rathfarnham, Terenure |
| South Dublin City | Ballsbridge, Donnybrook, Sandymount, Ranelagh, Rathgar, Harold's Cross, Churchtown, Dundrum |
| Dún Laoghaire & South Coast | Blackrock, Booterstown, Monkstown, Dún Laoghaire, Dalkey, Killiney |
| Stillorgan, Sandyford & Foxrock | Mount Merrion, Stillorgan, Goatstown, Sandyford, Cherrywood, Cabinteely, Foxrock, Deansgrange |
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Frequently Asked Questions
How much do new windows cost for a 3-bed semi in Dublin?
Typically €6,000–€12,000 for uPVC double glazing, more for aluminium, timber or triple glazing.
Are there grants for new windows?
SEAI has offered grants for window and door upgrades for qualifying homes. Approval is needed before work starts, so check seai.ie for current terms first.
Is triple glazing worth it?
For most homes, A-rated double glazing is enough. Triple glazing suits deep retrofits, exposed or noisy locations, and very low-energy homes.
Do I need planning permission to replace windows?
Not usually for like-for-like replacement. Changes to front windows, protected structures and conservation areas may need permission.
Will new windows improve my BER?
Yes, replacing old single or early double glazing usually improves the rating, especially alongside insulation.
Why do my new windows have condensation?
Airtight windows reduce draughts, so moisture has fewer ways to escape. Trickle vents, extractor fans and regular airing solve it.
How Emergency Trade Works
Emergency Trade connects you with independent, vetted local tradespeople across Dublin and the rest of Dublin. Before any work starts, ask for a written quote and check the right registration for the job: RGII for gas work and Safe Electric for electrical work.