Living along the Dublin coastline – whether in Clontarf, Raheny, Sandymount, or further north towards Malahide – looks great on paper. The sea views, the fresh air, the walks along the promenade. But ask any homeowner in these areas what their windows look like after five years, and you will often hear a different story. Frames that have warped. Seals that have failed. Hardware that has corroded. Paint that has peeled back in patches.
The cause is almost always the same: salt-laden Atlantic air, persistent coastal winds, and moisture that finds every weak point in a window system. Standard windows are not designed for this. Dako windows are.
Why Is Coastal Dublin Hard on Windows?
The Irish east coast sits directly in the path of Atlantic weather systems. Winds can arrive at speed, and the air they carry is not just cold – it is saturated with fine salt particles that settle on surfaces and slowly work away at materials not built to resist them.
For windows, this creates three main problems:
- Corrosion – Salt accelerates oxidation on metal hardware, hinges, and frames
- Seal failure – Repeated thermal cycling from coastal temperature swings causes inferior seals to crack and let in draughts
- Frame degradation – Lower-grade materials absorb moisture over time, leading to warping, staining, or structural weakness
The further your home sits from the coast, the less severe these effects are. But for homes within a kilometre or two of the sea, window choice genuinely matters.

What Makes Dako Windows Suited to Coastal Conditions?
Dako is a European window manufacturer with a strong track record in performance glazing. Their products are not marketed as a budget option, and that positioning exists for a reason. Here is what sets them apart for homes in exposed coastal locations.
1. Material Quality Across All Finish Options
Dako windows are available in three main finish types – aluminium, timber, and PVC. Each of these handles coastal conditions differently, but Dako’s manufacturing standards mean all three are finished to a quality that resists the environmental stresses coastal homes face.
For coastal Dublin homes in particular, the aluminium option is worth considering. Aluminium does not absorb moisture, does not warp, and when correctly anodised or powder-coated to a high standard, it resists salt corrosion far longer than budget alternatives.
2. Thermal Insulation Performance
Alu-clad windows and Dako’s thermally broken aluminium frames both address the cold-bridging issue that standard aluminium windows suffer from. A thermally broken frame has an insulating barrier between the inner and outer aluminium sections, which prevents the cold outside surface from chilling the interior frame and causing condensation.
For coastal homes, where wind chill and damp air make thermal performance even more important, this matters.
3. Security Classifications Rc2 and Rc3
Coastal properties – particularly those on exposed headlands or promenades – can be more vulnerable to break-in attempts, partly because of lower passing foot traffic at night. Dako windows are available with Rc2 and Rc3 burglar resistance classifications, which means the frames, locks, and glazing units have been independently tested against forced entry.

This is not a minor detail. Most standard windows in the Irish market carry no resistance classification at all.
4. Bespoke Colour and Design Options
Salt air and UV exposure from sea-facing aspects fade and discolour window frames faster than in sheltered inland locations. Dako’s colour range uses durable finishes designed to hold their appearance over time, even in exposed positions.
Rather than picking from a standard white or brown chart, homeowners can specify colours and finishes that are genuinely suited to their property’s style and exposure.
Dako Windows vs Standard Windows: A Quick Comparison
| Feature | Standard Windows | Dako Windows |
| Salt air resistance | Low to moderate | High |
| Security rating | Usually none | Rc2 / Rc3 available |
| Thermal insulation | Standard U-values | Low energy, high performance |
| Finish durability | Variable | Aluminium, timber, PVC – all high grade |
| Customisation | Limited | Bespoke colours and designs |
| Maintenance | Can be moderate to high | Low maintenance by design |
| Suitable for coastal exposure | Sometimes | Yes |
Which Areas of Dublin Benefit Most from Dako Windows?
If your home sits in any of the following locations, the case for a higher-specification window system is stronger than it is for properties further inland.
- Clontarf – North Dublin Bay coastline, directly exposed to north-easterly winds
- Raheny – Close to North Bull Island and the bay, moderate salt air exposure
- Sandymount – South Dublin Bay, low-lying and exposed to south-easterly weather
- Malahide – Estuary setting with strong wind exposure on sea-facing homes
- Skerries, Rush, Loughshinny – North County Dublin coastal villages with direct Atlantic exposure
- Dún Laoghaire, Dalkey, Killiney – South Dublin coastline, well-known for exposed seafront properties
For homeowners in any of these areas, energy efficient windows for Dublin homes should be shortlisted ahead of any standard off-the-shelf product.
Does the SEAI Grant Apply to Dako Windows?
This is a question many Dublin homeowners ask when they are weighing up a window upgrade. The short answer is: it depends on the U-value of the specific glazing unit.
The SEAI requires replacement windows to meet a maximum U-value of 1.4 W/m²K to qualify for grant support. Dako windows can be specified with glazing units that achieve this – and often exceed it – making them potentially eligible under the SEAI windows and doors grant scheme.

If you are replacing windows in a property built before 2006, there is a good chance the existing glazing is single-glazed or early-generation double-glazed, which means you would be making a substantial thermal improvement. The grant is designed for exactly this kind of upgrade.
Ask the ThermoGlaze team to confirm the U-value of the specific Dako specification you are considering before your quote is finalised.
Why does ThermoGlaze install Dako Windows in Dublin?
ThermoGlaze is an authorised Irish partner for Dako, which means the installation is backed by both the manufacturer and a local team that has been fitting windows and doors across Dublin for years.
When you buy windows and doors in Dublin through ThermoGlaze, you are not dealing with a company that imports a product and passes it on. The team handles the specification, fitting, and any aftercare that arises. For coastal properties where getting the installation right matters – particularly around weatherseal quality and hardware protection – this kind of local accountability is genuinely useful.

ThermoGlaze also fits across all Dublin locations including Clontarf, Raheny, Swords, Rathgar, Donnybrook, Drumcondra, and Blanchardstown. If you are not sure whether your area is covered, a quick call to 01 912 0600 will confirm it.
What to Ask Before You Buy Coastal Windows?
Before committing to any window product for a coastal property, it is worth asking the supplier a few direct questions:
- What is the U-value of the glazing unit being specified?
- What security resistance classification does the hardware carry?
- Is the frame material and finish suitable for salt air exposure?
- Is the weatherseal rated for exposed wind-driven rain conditions?
- What is the warranty on the hardware and seals?
A supplier who cannot answer these questions clearly is worth treating with caution, regardless of the headline price.

Visit Our Dublin Showrooms
Before you commit to anything, it is worth seeing Dako windows in person. ThermoGlaze has two showroom locations in Dublin where you can view window and door products, discuss your project, and get a no-obligation quote.
Northside Showroom (Swords):
Unit F2, Swords Enterprise Park, Feltrim Road, Drinan, Swords, Co. Dublin, K67 WF72
Southside Showroom (Rathgar):
68 Rathgar Avenue, Dublin 6, D06 KN53
(Open to the public – no appointment needed)
Both showrooms are staffed by people who can advise on coastal-specific requirements, glazing specifications, and SEAI grant eligibility for your property.

Conclusion
For Dublin homes within reach of the coast, the choice of window system is not just about looks or price. Salt air, Atlantic winds, and persistent moisture all shorten the lifespan of windows that are not built for exposure. Dako windows address this directly – through material quality, thermal performance, and security ratings that standard windows typically do not carry.
If your home in Clontarf, Raheny, Malahide, or anywhere along the Dublin coastline is due a window upgrade, it is worth speaking to a team who understands what coastal installation requires. ThermoGlaze has the product range, the local knowledge, and the installation experience to get it right.
Call ThermoGlaze today on 01 912 0600 or request a free quote online to discuss your coastal home window project.
FAQs
1. Are Dako windows suitable for homes close to the sea in Dublin?
Yes. Dako windows are built with durable materials and high-quality finishes that resist the salt air, moisture, and wind exposure that coastal Dublin homes face. The aluminium finish option is particularly well suited to exposed sea-facing positions.
2. What makes Dako windows different from standard uPVC windows?
Dako windows are available in aluminium, timber, and PVC, and are manufactured to higher specifications than typical entry-level uPVC products. They carry security ratings of Rc2 and Rc3, offer low-energy thermal performance, and are available in bespoke colours – features not commonly found in standard uPVC systems.
3. Do Dako windows qualify for the SEAI home energy grant in Ireland?
They can qualify if the glazing unit meets the SEAI’s required U-value of 1.4 W/m²K or better. ThermoGlaze can confirm whether the specific Dako specification you are considering meets this threshold during your consultation.
4. How long do Dako windows last in a coastal environment?
With correct specification, professional installation, and basic maintenance, Dako windows are designed for long-term performance. The low-maintenance materials and durable finishes are a key part of what makes them suitable for coastal properties in particular.
5. Can I get Dako windows installed in Clontarf, Raheny, or Malahide?
Yes. ThermoGlaze installs windows and doors across all Dublin locations, including coastal areas. Call 01 912 0600 to arrange a visit or a quote for your area.
6. What security rating do Dako windows carry?
Dako windows are available with Rc2 and Rc3 burglar resistance classifications, which are independently tested standards for resistance to forced entry. This is a stronger security specification than most standard windows available in the Irish market.
7. Are Dako windows energy efficient?
Yes. Dako windows use thermally insulated frames and can be specified with high-performance glazing units that deliver low U-values, reducing heat loss and helping with energy bills. This also supports SEAI grant eligibility.
8. Do I need to book an appointment to visit the ThermoGlaze showroom?
The Rathgar showroom at 68 Rathgar Avenue, Dublin 6 is open to the public and does not require an appointment. The Swords showroom at Swords Enterprise Park is also open – call 01 912 0600 to confirm opening hours.
9. What finish options are available for Dako windows in coastal colours?
Dako offers a wide range of finishes across aluminium, wood, and PVC frames, including bespoke colour options. For coastal properties where UV fading is a concern, the ThermoGlaze team can advise on finishes that hold their appearance over time.
10. How do I get a quote for Dako windows in Dublin?
You can call ThermoGlaze on 01 912 0600, visit either Dublin showrooms, or request a free quote online. The team will assess your property’s requirements and provide a specification suited to your location and budget.