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Over 23 year's in the Business
5247 window and door installations
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SEAI Grant 2026: Up to €5,600 off A-rated windows & doors · Call 01 822 8982 See grant details →

★★★★★ 5,247 Irish homes · Family-owned since 2003
⚡ 2026 SEAI Grant · Up to €5,600 Off

Home Casement Windows Dublin

#1 Rated Casement Window Installation in Dublin

Side-hinged casement windows are the most popular choice for Dublin homes because they open fully for maximum ventilation, critical during humid Irish summers. Our uPVC casement range is A-rated double or triple glazed, includes multi-point locking as standard, and starts from €600 + VAT per window supplied and fitted.

We have been fitting casement windows across Dublin and the greater Leinster area for 23 years. Our own employed fitters, never subcontractors, carry out every installation. Owen responds within 24 hours to discuss your project and arrange the next available survey slot.

  • Owen responds within 24 hours
  • SEAI registered installer
  • A-rated · 10-year guarantee
  • Dublin, Kildare & Wicklow
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SEAI Registered

Government-registered grant contractor since 2018

A-Rated Energy

BFRC A++ certified glazing as standard

PAS24 Secure

Multi-point locks · Garda-recognised security spec

23 Years · 5,247 Homes

Family-owned since 2003 · Dublin, Kildare, Wicklow

Manufactured by Spectus Window SystemsPalladio Door CollectionApeer DoorsSME Superior Trade
A-rated energy efficient
Energy efficiency

What Makes Our Dublin Casement Windows Energy Efficient?

Every casement window we install uses 28mm argon-filled double glazing as standard (A-rated), with 42mm triple glazing available for north-facing rooms or coastal locations. Our multi-chambered uPVC frames trap insulating air, while Low-E glass coating reduces heat loss by up to 40% compared to older single-glazed windows.

Why this matters for Dublin homes

Triple glazing eliminates condensation in poorly-heated bedrooms and cuts heating costs by an average of EUR300-EUR450 annually. All units exceed Irish Building Regulations Part L and are certified A-rated by NSAI.

Available finishes

Available in white uPVC (from EUR600 + VAT installed), anthracite grey (most popular in Dublin 4, 6, 8), and rosewood finishes.

Installation

How Long Does Casement Window Installation Take in Dublin?

Most Dublin casement window projects complete in 1-2 days for standard homes (6-8 windows). Here's our process:

  1. 1

    Day 1: Free Home Survey (30-45 minutes)

    We measure your existing windows, discuss double vs triple glazing options, and explain colour choices. You'll receive your itemised quote within 24 hours by email.

  2. 2

    Week 2-3: Manufacturing (2-3 weeks lead time)

    Every window is custom-made to your exact specifications in Ireland, no UK imports, tighter quality control.

  3. 3

    Day 2-3: Installation

    Our Dublin-based fitters arrive at 8:30am, remove old windows, install new casements, and complete all plaster/sill repairs. Full cleanup included. We've installed across Ranelagh, Drumcondra, Rathmines, and Foxfield Park with minimal disruption to homeowners.

Same-day service available for emergency window replacements (broken glass, failed seals).

Why use uPVC Casement Windows?


When it comes to casement windows, there are a lot of choices available. Which one fits your home the best? uPVC casement windows are a great choice for people who want security and style. They're resistant to weathering, which means they will last longer than other types of window glass. Our range includes Sliding and Fixed casements to find the perfect casement windows for your home.

All our PVC Windows


French Windows SEAI eligible

French Windows

Transform your home with elegant French windows that open outwards to provide maximum fire escape. The two opening sashes makes cleaning easier from inside. A French window in white uPVC starts at €750 plus VAT.

French Windows From €600 + VAT
Sliding Sash Windows SEAI eligible

Sliding Sash Windows

Preserve Dublin's period charm with modern uPVC sliding sash windows that replicate Victorian and Georgian aesthetics while delivering "A" rated energy efficiency. 12+ colours available. From €950 plus VAT.

Sliding Sash Windows From €600 + VAT
Flush Sash Windows SEAI eligible

Flush Sash Windows

Achieve sleek, contemporary aesthetics with Flush Sash windows where the frame and sash sit perfectly level. Triple glazed and double glazed in 20+ colour finishes. From €900 plus VAT per window installed.

Flush Sash Windows From €600 + VAT
Casement Windows SEAI eligible

Casement Windows

The most popular uPVC window choice. The simplest way to improve energy efficiency, security and to transform the appearance of the home. "A" rated as standard. From €600 plus VAT installed.

Casement Windows From €600 + VAT
Double Glazed SEAI eligible

Double Glazed

Reduce your window heat loss by up to 40% with energy efficient "A" Rated double glazed windows with Argon Gas filled glass units, Low E coating and a 10-year guarantee.

Double Glazed From €600 + VAT
Triple Glazed SEAI eligible

Triple Glazed

Achieve maximum energy savings with premium triple glazed windows, Ireland's best defence against heat loss, condensation and noise. 25% more energy efficient than double glazing. From €750 plus VAT.

Triple Glazed From €600 + VAT
Pricing

How Much Do Casement Windows Cost in Dublin?

  1. 1

    Standard White uPVC (Double Glazed)

    Small (600mm x 900mm): EUR600-EUR750 + VAT installed

    Medium (1200mm x 1200mm): EUR850-EUR1,000 + VAT installed

    Large (1500mm x 1400mm): EUR1,100-EUR1,300 + VAT installed

  2. 2

    Premium Colours (Anthracite Grey, Black, Rosewood)

    Add EUR150-EUR200 per window

  3. 3

    Triple Glazing Upgrade

    Add EUR200-EUR300 per window (recommended for north-facing rooms, coastal homes)

  4. 4

    Average Full Home Cost

    Dublin semi-detached (8 windows): EUR6,000-EUR8,500 + VAT fully installed including old window removal, plaster repairs, cleanup.

  5. 5

    Available Colours

    White, Cream, Rosewood, Mahogany, Golden Oak (standard pricing)

    Anthracite Grey, Agate Grey, Black (most popular in Dublin 4, 6, 8)

    Dual-colour option: White interior with anthracite exterior (EUR100 upcharge)

    Free itemised quotes provided after home survey.

Service area

Casement Window Installation Across Dublin & Surrounding Counties

We provide free home surveys and installation across all Dublin postcodes:

Northside Dublin

D1, D3, D5, D7, D9, D11, D13, D15, D17 (Drumcondra, Santry, Glasnevin, Clontarf, Raheny)

Southside Dublin

D2, D4, D6, D8, D12, D14, D16, D18 (Ranelagh, Rathmines, Rathgar, Terenure, Dundrum)

County Dublin

Swords, Malahide, Clondalkin, Tallaght, Lucan, Balbriggan, Foxfield Park

Free site visits typically scheduled within 3-5 working days. Same-day emergency glass replacement available for broken windows.

Dublin · Kildare · Wicklow
Benefits

Benefits Of Casement Windows

Casement windows are a great option for people who want to increase ventilation and light while keeping the inside of the home cool. Several types of casement windows meet your needs, so be sure to choose the right one for your home.

Every casement window includes:

  • Yale-approved 8-point multi-point locking (exceeds PAS024 British Standard)
  • Internal glazing beads (glass cannot be popped out from outside)
  • Reinforced steel core in main frame
  • Hinge-side security claws (prevents crowbar attacks)
  • Optional child restrictors (100mm opening limit)

Casement windows may be the best option for your home for a variety of factors. Not only do they provide an elegant and stylish look, but they also reduce sound interference. This is perfect if you live in a noisy environment or want to enjoy peaceful sleep without being disturbed by noise from outside.

Casement windows allow more natural light and ventilation, saving energy costs over time. In addition, casement windows can also be used as ventilation devices during hot summer months. It becomes more habitable and comfortable by allowing fresh air and natural light into the room.

Casement windows are easy to clean, open the window and use a hose to spray water and add soap to the glass until it is clean. Later wait for it to dry in the open air and clean it with a dry towel.

FAQ

Frequently Asked Questions About Casement Windows in Dublin

Compare options, costs and timelines. Owen responds within 24 hours and arranges the next available survey slot.

Most Dublin homes (6-8 windows) are completed in 1-2 consecutive days. Larger projects with 12+ windows take 2-3 days. Our team arrives at 8:30am, works continuously, and completes all cleanup before leaving. We've installed across Ranelagh, Drumcondra, and Rathmines with minimal disruption — customers can stay home during installation.

Yes — specifically designed for Ireland's damp, windy weather. Our 28mm double glazing eliminates condensation (major problem in Dublin's humidity), while airtight seals withstand coastal winds. We recommend triple glazing (42mm) for north-facing bedrooms (poor natural heat), coastal areas (Malahide, Howth, Clontarf), and homes near Dublin Airport (noise reduction). All units exceed Irish Building Regulations Part L for thermal performance.

Double Glazing (28mm): Two panes of glass with 16mm argon gas gap. A-rated. Reduces heat loss by 40% vs single glazing. Cost: €600-€1,000 per window installed. Triple Glazing (42mm): Three panes with two 14mm argon gas gaps. A++ rated. Reduces heat loss by 60% vs single glazing. Eliminates condensation in cold rooms. Cost: €900-€1,300 per window installed. Dublin recommendation: Double glazing sufficient for living rooms, kitchens. Triple glazing recommended for north-facing bedrooms, bathrooms, and coastal homes.

Budget: €600-€750 per window (white uPVC, double glazed, small size). Mid-range: €900-€1,100 per window (anthracite grey, double glazed, standard size). Premium: €1,200-€1,500 per window (triple glazed, large size, custom colour). Average full home: Dublin semi-detached (8 windows) = €6,000-€8,500 + VAT installed including old window removal, plaster repairs, and cleanup. Owen responds within 24 hours and itemised quotes are provided after home survey.

10-year sealed glass unit guarantee (no condensation between panes), 10-year hardware guarantee (Yale locks, hinges, handles), 10-year uPVC frame guarantee (no warping, discolouration), 2-year installation workmanship guarantee. Our Dublin-based service team responds within 48 hours for warranty claims — no outsourcing to UK call centres. All parts stocked locally in Parkwest.

Google reviews

Real Reviews from Dublin, Kildare & Wicklow Homeowners


5.0 ★ from verified Google reviews · 23 years installing across Ireland

I would have absolutely no hesitation in recommending Airtight Windows to anyone looking to upgrade windows. Owen was friendly and professional from start to finish, much better value than any of the other companies who quoted. Installation went smoothly and Anthony cleaned up any mess that was made during the process. Very pleasant to deal with and we are delighted with the result!

Dani Sinnott

Foxfield Park, Raheny · 3 months ago Read on Google →

Airtight Window Systems did an excellent job installing our new front door and casement windows. From the first contact through to the final fit and finish, their team was professional, punctual, and clearly knew what they were doing. The workmanship is top-notch. Everything feels solid, looks great, and the casement windows open and close smoothly.

Ben William Isaac

4 months ago Read on Google →

Would highly recommend Owen and his crew! Felt really looked after from the initial email, to Owen coming out to measure and quote for our doors and windows. We received our quote on the same day! Took 6 weeks from ordering for the doors and windows to arrive and they were out just days after! The team installing were amazing, they arrived right on the dot each morning and had the entire house done in 3 days. Everything went so smoothly, talk about stress free!

Michaela Hone

a year ago Read on Google →

Excellent company and an absolute pleasure to deal with. My family have had three front door installations by Airtight and all three were flawless from start to finish. Highly recommended.

Keith JD

5 months ago Read on Google →

We're delighted with the quality, price and customer service with Airtight. Eoin was efficient, friendly, keenly priced and the install was super clean and well finished. Happy to recommend.

James Byrne

a year ago Read on Google →

This is the second job I have had done with Owen — his advice and guidance on the best solution is honest and the best. Prices are very keen. The door was installed by Anthony and what a brilliant job he did, with no mess, and happily did some other related jobs that had been requested. Very pleasant and trustworthy workmen to have around the house. Super door replacement, no more draughts, happy days!

Mary Greene

3 years ago Read on Google →

See all our Google reviews

Read next

Helpful reading from our blog

Honest guides from our installers — comparison articles, buyer’s checklists and SEAI grant tips.

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