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Triple glazed windows in Dublin achieve U-values as low as 0.8 W/m²K, roughly 35% better than standard A-rated double glazing, making them the right choice for passive house retrofits and coastal Dublin homes where Atlantic salt air accelerates heat loss. Our triple glazed uPVC units include argon-filled cavities and warm-edge spacer bars as standard.
As an SEAI-registered contractor, we provide the A-rated triple glazing and post-works BER documentation that lets Dublin households apply for up to €5,600 in grant support — homeowners submit the application directly to SEAI. Owen responds within 24 hours and fixed-price quotes are issued after survey, backed by a 10-year guarantee and installed by our own directly employed team.
60 seconds · No phone calls until you’re ready
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
30% better thermal efficiency than double glazing (1.2+ U-value)
Two sealed cavities between three glass panes reduce heat transfer
Energy-saving coatings reflect heat back into your Dublin home
Exceeds Irish building regulations (Part L)
Maximum insulation for exposed Dublin locations
Comprehensive coverage on all glass units and seals
Airtight triple glazed windows deliver measurable performance improvements over standard double glazing. All windows manufactured using Irish-certified systems (Spectus, Futura) with multi-point locking as standard. From €750 per window installed.
Yes — for Dublin's damp, coastal climate, triple glazing delivers measurable returns:
Dublin homeowners typically save €400-€600 annually on heating costs compared to old double glazing. At current energy prices, triple glazing pays for itself within 12-15 years through reduced oil, gas, or electric heating bills.
North-facing rooms that never get direct sunlight, homes near busy roads (M50, N11, Luas routes), coastal properties exposed to Atlantic winds, period homes with BER ratings below C1, properties near Dublin Airport flight paths
Costs 20-30% more upfront but delivers 30% better heat retention (U-value 0.8 vs 1.2-1.6), superior noise reduction (40+ decibel reduction vs 25-30), zero condensation issues, higher BER ratings (improves resale value €3,000-€5,000)
Triple-glazing windows are a great way to improve your home's insulation, heat retention, and security. Installation services can be arranged to suit your needs, so don't hesitate to call us today. Not only will triple-glazing windows keep your home warmer in the winter and cooler in the summer, but they will also provide you with increased privacy and reduced noise levels inside your home. And because triple-glazing windows require no maintenance or replacements, you can enjoy years of trouble-free use.
SEAI eligible
SEAI eligible
SEAI eligible
SEAI eligible
SEAI eligibleSEAI eligibleSEAI eligibleWe supply and fit triple glazed windows Ireland-wide across Dublin, Kildare and Wicklow — the same Spectus/Futura A+ rated systems, the same 10-year warranty, and no county surcharge. Triple glazing is the spec we recommend for new builds targeting BER A2, deep retrofits, and exposed north-facing rooms anywhere from Naas to Arklow. Unsure whether triple or double is the smarter spend for your home? Read our honest double vs triple glazing guide — U-values, real costs and 18–22-year payback math — before you decide.
We're Dublin's trusted triple glazing specialists:
Since 2001, we've completed 5,247 window installations across Dublin — from Victorian terraces in Rathmines to modern homes in Malahide. We understand Dublin's coastal climate, period property challenges, and planning permission requirements. Family-run business, not a franchise.
Free quotes within 24 hours with full material, installation, and disposal breakdowns. From €750 per triple glazed window installed. No pressure sales — just honest advice.
Our installers are CIRI-registered and fully insured, with an average of 15+ years on the tools — you get a consistent crew from quote through to handover.
Every triple glazed unit backed by comprehensive 10-year warranty covering glass seals, argon gas retention, and thermal performance. Plus 12-month complimentary post-installation inspection.
All windows achieve U-values of 0.8 or lower using Irish-certified systems (Spectus, Futura). Compliance with Part L building regulations guaranteed.
Phone quotes same day, home surveys booked for the earliest available appointment, manufacturing 4-6 weeks, installation 2-3 days for full home.
Transparent pricing with everything included:
Casement (1200x1200mm) from €750, Sash (900x1400mm) from €950, French (1800x1200mm) from €850
€3,750-€4,500
€7,500-€9,500
€11,250+ (volume discounts apply)
Window size (larger = higher cost), frame colour (white cheapest; woodgrain adds €100-150/window), style (sash/flush sash cost 15-20% more than casement), hardware upgrades (security locks, Georgian bars)
Compare options, costs and timelines. Owen responds within 24 hours and arranges the next available survey slot.
Triple glazing costs 20-30% more than double glazing upfront — typically €750-€950 per window vs €600-€750 for double glazing. The extra weight also requires stronger frames and hinges, which can limit suitability for older wooden frames in period properties. Reduced solar gain is another consideration — triple glazing blocks slightly more natural heat from sunlight compared to double glazing. For south-facing rooms in Dublin that receive good sun exposure, this can mean higher heating costs on cold but sunny winter days. However, most Dublin homeowners find the benefits outweigh these drawbacks — especially for north-facing rooms, noisy locations, and exposed coastal properties.
For a full home replacement (10-12 windows), expect: Free survey and quote same day/next day, manufacturing lead time 4-6 weeks after order confirmation, installation 2-3 days for full home, clean-up and final inspection same day as installation. We work room-by-room to minimise disruption — your home remains liveable throughout. Installation includes removal of old windows, disposal of all debris, and frame sealing.
Yes — SEAI (Sustainable Energy Authority of Ireland) offers Better Energy Homes grants for window upgrades as part of whole-home retrofits. As an SEAI registered installer, your installation qualifies — you apply directly to SEAI.
Both are inert gases used to improve insulation. Argon gas (standard): Used in 95% of triple glazed windows, achieves U-values of 0.8-1.0, most cost-effective option, included in our standard triple glazing at no extra charge. Krypton gas (premium): Denser than argon provides better insulation, achieves U-values as low as 0.6-0.7, typically adds €150-€200 per window, recommended for passive house standards or north-facing rooms. For most Dublin homes, argon gas delivers excellent performance. We only recommend krypton upgrades for passive house projects or homes in extremely exposed coastal locations.
Generally no — window replacement is considered "exempted development" under Irish planning law, meaning no planning permission required. We advise checking with Dublin City Council or your local planning office before ordering. For period properties, we can match original sash proportions and use heritage-appropriate colours to satisfy conservation requirements.
Related Airtight pages for comparing products, grant support, pricing and local service areas. Airtight installs A-rated uPVC windows, composite doors and sliding doors across Dublin, Kildare and Wicklow.
5.0 ★ from verified Google reviews · 23 years installing across Ireland
Honest guides from our installers — comparison articles, buyer’s checklists and SEAI grant tips.
Buyer’s guideDouble vs triple glazing for Irish homes in 2026 — U-values (1.4 vs 0.8 W/m²K), the real €150–€200-per-window premium, 7–10 vs 18–22 year payback, SEAI grant eligibility, and when each is actually worth it.
Read articleBuyer’s guideReal 2026 prices for new windows in Ireland — from €600 + VAT per window fitted, €6,000–€12,000 for a 3-bed semi by style, the triple-glazing premium, and SEAI grant amounts with net-cost examples.
Read articleOur certified installer will visit your home, measure precisely, explain your options, and provide a detailed quote-all in about 30 minutes. No pressure, no obligation, no pushy sales tactics. Just honest advice from Dublin's most trusted window experts.
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