Rated 5 out of 5

#1 Rated Window and Doors Installation Service in greater Dublin, Kildare, Wicklow

Cut Your Heat Loss up to 30% With Energy-Rated 'A' Windows and Doors

Join 5247 Dublin homeowners who've cut their heating bills with our certified A-rated installations. Zero-hassle process, 24-hour quotes, and 23 years of proven results.

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23 YEARS OF EXPERIENCE WORKING WITH HOMEOWNERS IN DUBLIN AREA

Why 5247 Dublin Homeowners Choose Airtight

Since 2003, we’ve been the family-owned window and door specialists Dublin homeowners trust when they want it done right the first time.
We’re not the cheapest—but we’re the best value. Here’s why:

Our Promise

Every installation is completed by experienced installers with an average of 15 years + in the trade and they are regularly complimented for arriving on time and maintaining a clean working space.

Your Peace of mind

With product and installation guarantees ranging from 5 – 12 years, your new windows and doors will serve you well into the future.

Real Results

Not only will your home be more aesthetically pleasing to look at, energy savings will be realised while making your home more comfortable and secure.
What Dublin Homeowners Say

Premium Windows & Doors for Dublin Homes

We specialize in installing uPVC casement windows, sliding sash windows, French windows, tilt and turn windows, French doors, and composite doors. Every installation includes our 10-year workmanship guarantee and is completed by SEAI certified installers serving Dublin and surrounding areas.

All our PVC Doors

Modern black front door with brick archway

Front Doors

Make a stunning impression with our Palladio Composite front doors, manufactured in Ireland and designed to withstand Irish weather. Choose from 20+ colours and an extensive range of glass. Supply and installation of a typical triple glazed Palladio Composite door and adjoining side-screen such as in photo 1 attached starts from €2200 plus VAT. Installation takes 1 day to complete and is backed by a 12-year guarantee
White back door with frosted glass panel

Back Doors

Transform your garden access with uPVC back doors built for everyday Dublin family life. Our uPVC back doors come in double glazed and triple glazed options and can open inwards or outwards and are secured by a 10-point hook bolt locking mechanism and a thumb-turn anti-snap key cylinder. Installation only takes half a day and a typical back door in white uPVC (2nd photo attached) costs €1170 plus VAT.
Modern black front composite door with glass panel

Composite Doors

Get the premium look without the maintenance nightmares. Our Palladio Composite doors never need painting and are manufactured in Ireland as well as being designed with double rebated seals to cope with the Irish climate. Available in woodgrain finishes with a 12-year guarantee against warping or twisting. Prices start at €1800 plus VAT for a single door.
Glass patio french doors leading to garden

French Doors

Make a stunning impression with our Palladio Composite front doors, manufactured in Ireland and designed to withstand Irish weather. Choose from 20+ colours and an extensive range of glass. Supply and installation of a typical triple glazed Palladio Composite door and adjoining side-screen such as in photo 1 attached starts from €2200 plus VAT. Installation takes 1 day to complete and is backed by a 12-year guarantee
Modern glass patio sliding door exterior view

Sliding Doors

Maximise space and natural light with smooth gliding patio doors that don’t swing into your room. Choose from uPVC sliding doors in a range of colours starting from €1800 plus VAT in white uPVC or aluminium Lift & Slide doors designed for larger openings starting from €4000 plus VAT.
House exterior under renovation with Patio sliding Door

All our PVC Doors

Explore our complete range of affordable, low maintenance doors for Dublin and Kildare homes. Energy efficient, secure and great looking with a door to suit every budget starting from €1400 plus VAT.

All our PVC Windows

White double french window on textured wall

French Windows

Transform your home with elegant French windows that open outwards to provide maximum fire escape, particularly suitable for narrow windows”. Having the two opening sashes also makes the window exteriors easier to clean from inside the room. A French window in white uPVC starts at €750 plus VAT.
White framed sash windows on building exterior

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. Smooth vertical operation, tilt-in cleaning with options for double and triple glazing. 12+ colours available including Anthracite grey and Agate grey. From €950 plus VAT per window.
Double glazed wooden flush sash window on brick wall

Flush Sash Windows

Achieve sleek, contemporary aesthetics with Flush Sash windows where the frame and sash sit perfectly level, designed to mimic modern aluclad windows but at a fraction of the cost. Triple glazed and double glazed solutions available in 20+ colour finishes with 6-point locking mechanisms as standard. From €900 plus VAT per window installed.
White framed Casement Window on red brick wall

Casement Windows

For many years, these have been the most popular uPVC window choice. The simplest way to improve energy efficiency, security and to transform the appearance of the home. Perfect for home and rental property renovations, the colour range has expanded greatly from older days when the offering was restricted to white PVC or brown PVC. “A” rated as standard in both double glazing and triple glazing. From €600 plus VAT installed.
White framed sash windows on building exterior

Double Glazed Windows

Reduce your window heat loss by up to 40% with energy efficient “A” Rated double glazed windows whereby the glass units are Argon Gas filled with a Low E coating and a 10-year guarantee.
Double glazed wooden flush sash window on brick wall

Triple Glazed Windows

Achieve maximum energy savings with premium triple glazed windows, Ireland’s best defence against heat loss, condensation and noise. Triple glazing is 25% more energy efficient than double glazing saving money on heating costs while adding extra comfort to homes throughout the country. Particularly beneficial in the north facing aspect of houses which get little natural sunlight. In white uPVC, triple glazed window start from €750 plus VAT.

Dublin's Trusted Glass & Door Installation Service

Typical Project Costs:

Airtight window systems is a trusted and experienced provider of windows and doors throughout Dublin and surrounding counties. From initial design to stress-free installation, our specialists are here to guide you every step of the way.

*Final price depends on window size, colour, glazing and installation complexity. Book your free consultation for a more precise quote.

Get Expert Advice With Our Free Home Consultation

Planning New Windows or Doors?

Dublin’s Most Comprehensive Window & Door Installation Service: We Visit Your Home, Take Precise Measurements, Discuss Your Options, and Provide Accurate Quote in 24 Hours.

What's Included

Guarantee: Professional advice with zero pressure - we're here to help you make the right choice.

Our Work

Your house, Our answers

Explore our windows and doors to find a product that meets your needs and receive a quote from us

?

Window replacement costs in Dublin typically range from €600-€1,200 per window, depending on size, material, and energy rating. For a standard 3-bedroom semi-detached home in Dublin, expect to pay €12,000-€18,000 for full-home window replacement with energy-efficient A-rated UPVC windows.

Breakdown by project type:

  • Single window replacement (€600plus VAT – €1200 plus VAT depending on size and colour)*
  • Front Door replacement (Composite Door) – €1800 plus VAT to €3600 plus VAT.*
  • Full Home replacement (3 bed semi – €12000 plus VAT to €15000 plus VAT. *
  • Aluminium Lift & Slide Doors (€4000 plus VAT to €11500 plus VAT)*
  • Back Doors (€1170 plus VAT to €1400 plus VAT)*

Factors affecting cost include window size, frame material (UPVC, wood, aluminum, composite), glazing type (double vs. triple), energy rating, and installation complexity. At Airtight Window Systems, we provide free in-home consultations and detailed quotes within 24 hours, so you know exactly what your project will cost before committing.

New front door installation in Ireland starts from €1800 plus VAT for supply and installation of a single triple glazed Composite Door to €3600 plus VAT for a triple glazed Composite Door and two adjoining side-screens with matching glass design throughout. This the most popular front door product choice as it provides excellent thermal efficiency and security while transforming the look of the home.

Aluminium front doors are becoming more popular but tend to range in price from €3500 plus VAT to €7500 plus VAT. Only the more expensive aluminium doors achieve energy ratings closer to Composite Doors.

Wooden front doors typically range in price from €3200 plus VAT to €6500 plus VAT but hey have the disadvantage of requiring a lot more maintenance.

Composite Doors offer the best value to our customer in Dublin and surrounding counties as they combine the premium appearance of wood with almost zero maintenance (apart from the locking mechanism benefits from being oiled annually), superior insulation and multi-point locking mechanisms as well as high security key cylinders. Composite front door installations typically take a day and they carry a 12-year guarantee covering the door and the workmanship.

Yes, triple glazed windows are worth it for Irish homes particularly in the north facing aspect of homes that don’t benefit from direct natural sunlight. 5 years ago, 90% of windows installed by Airtight window systems were double glazed versus 10% triple glazed. Nowadays, there is a 50/50 split between double and triple glazing and we expect triple glazing to overtake double glazing very soon. Typically, triple glazing costs 20% more than double glazing but some of that money will be clawed back over time through reduced heating costs. A triple glazed “A” Rated window is 25% more energy efficient than a double glazed “A” Rated window.

Benefits for Dublin households:

  • Better heat retention during Ireland cold, damp winters
  • Reduced condensation (common issue in Irish homes)
  • Superior noise reduction (ideal for properties near busy Dublin roads)
  • Higher home resale value (buyers increasingly expect A-rated windows)
  • Lower carbon footprint (important for BER ratings)
Window and door installation in a 3-bed semi with 8-10 windows and two doors takes 3 days to complete. This includes any associated plasterwork, perimeter sealing and removal of waste which would be a standard part of our installation.

Generally, no planning permission is required to replace windows in Dublin if you’re replacing like-for-like (same size, style, and position). However, planning permission may be required for protected structures, buildings in Architectural Conservation Areas (ACAs), or if you’re significantly changing window size, style, or adding new window openings.

Our window replacement process is designed for minimal disruption and maximum transparency:

Step 1: Free In-Home Consultation (30-60 minutes)
A member of our sales team visits your home to take basic window and door measurements and discuss your preferences (style, colour, functionality) and answer any questions. No pressure, no obligation.

Step 2: Detailed Quote
You receive a comprehensive quote including window specifications, installation timeline, total cost breakdown, and warranty details. We also provide a free energy audit showing projected heating bill savings.

Step 3: Order & Manufacturing (3-4 weeks to 6-8 weeks)
Once you approve the quote, windows are custom-manufactured to your exact measurements using premium UPVC, composite, or aluminum materials with A-rated energy efficiency.

Step 4: Professional Installation (1-3 days)
Our experienced installers arrive on schedule to begin the installation. A fitting plan is agreed with the householder bearing in mind that we want to minimise disruption to home life as much as possible and this has become more important as more people work from home. Installation includes removal and safe disposal of the old windows/doors, frame preparation, precise fitting, all associated plasterwork and perimeter sealing.

Step 5: Final Inspection
We conduct a thorough inspection with you and demonstrate how to use the doors/windows and handover spare keys for the doors. Care for the home we are working in is of utmost importance to us and thankfully, our fitters are regularly complimented for the spotless condition that they leave houses in.

Yes, we have been fitting “A” Rated windows for the past 10-15 years so they are now an assumed part of our standard product offering. Even a double-glazed A-rated window can reduce heat loss by 40% compared to older single glazing and further improvements in heat retention can be made by opting for triple glazing. This additional heat retention contributes to reduced energy bills and increased comfort in the home. There’s also the added benefit of transforming the appearance of the home though the side variety of colours and styles available.

UPVC windows last 20-35 years in Ireland with minimal maintenance, making them excellent long-term value. The lifespan depends on quality (budget vs. premium materials), installation quality, exposure to weather, and basic maintenance. uPVC can also be recycled at the end of their lifespan to maximise sustainability.

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