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Certified Double Glazed Window Provider & Installer
Double Glazed Windows
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CUSTOM DESIGNS
SOUND PROOFING SYSTEMS
ENERGY SAVING TECHNOLOGY
At Expert Windows, we specialise in high-performance double glazed windows for homes and businesses across Dublin and Ireland.
Whether you’re replacing old frames or choosing new windows and doors for a renovation or new build, our custom solutions are tailored to your needs.
We work with top-quality materials such as:
- uPVC windows
- Aluminium windows
- Triple glazed windows Ireland for maximum energy efficiency
Our double glazed windows are designed to:
- Improve insulation
- Reduce noise
- Enhance home security
From modern sliding windows to classic sash styles, we offer a wide selection to match your property’s look.
We also supply and install a full range of doors, including:
- PVC doors
- Composite doors Dublin
- Palladio composite doors
Giving your home a cohesive, polished finish.
Our Range of Double Glazed Windows
We provide top-quality double glazed windows perfectly suited for Irish homes.
Our extensive range includes styles designed to enhance energy efficiency, boost curb appeal, and seamlessly complement the character of your property.
Double Glazed UPVC Windows
Upgrade your home with energy-efficient double glazed uPVC windows, ideal for window replacement Dublin.
Our window installers provide top-quality pvc windows Dublin and doors and windows solutions.
Perfect match for patio doors, front doors, and pvc doors. Trusted by top window companies Dublin for modern windows and doors.
Double Glazed Aluminum Windows
Sleek and strong, our double glazed aluminum windows offer excellent insulation and durability.
Ideal for window replacement Ireland, these aluminium windows Ireland pair well with sliding windows and double glazed doors.
Combine with palladio composite doors or patio doors for stylish, secure windows and doors Dublin.
Double Glazed AluClad Windows
Our double glazed aluclad windows blend timber beauty with aluminum strength—perfect for modern windows Ireland.
Suitable for triple glazed windows Ireland, new windows and doors, and window installation. Match with composite doors Dublin, upvc door, or replacement windows Dublin for a full windows and doors Ireland transformation.
Benefits of Double Glazed Windows
- Enhanced Energy Efficiency
- Increased Security
- Reduced Condensation
- Boosted Property Value
- Eco-Friendly Choice
- Improved Noise Reduction
How Double Glazed Windows Work
Double glazed windows use two panes of glass separated by a sealed air or argon-filled gap. This insulated unit reduces heat transfer, helping Irish homes retain warmth in winter and stay cooler during warmer months.
Modern double glazed units also include low-emissivity (Low-E) coatings that reflect heat back into the room while allowing natural light to pass through. Combined with advanced frame systems such as uPVC, aluminium, or aluclad, these windows significantly improve thermal performance compared to single glazing.
Double vs Triple Glazed Windows
Many homeowners consider whether double or triple glazing is the better option. Double glazing remains the most common choice in Ireland because it provides excellent insulation while remaining cost-effective.
| Feature | Double Glazing | Triple Glazing |
|---|---|---|
| Glass Panes | 2 | 3 |
| Typical U-Value | 1.1 – 1.4 W/m²K | 0.7 – 0.9 W/m²K |
| Cost | Lower | Higher |
| Best For | Most Irish homes | Passive or low-energy homes |
What Influences Double Glazed Window Costs?
- Window size and opening style
- Frame material (uPVC, aluminium, or aluclad)
- Glass specification and energy rating
- Colour finishes or woodgrain effects
- Installation complexity and property access
Every property is different, which is why we provide detailed quotations following a home survey.
Our Installation Process
Expert Windows provides full supply and installation services across Dublin and Ireland. Our experienced installers ensure airtight fitting, proper insulation, and a clean finish.
Step 1 – Consultation & Survey
We evaluate your property, measure accurately, and assess structural suitability.
Step 2 – Custom Manufacturing
Your windows are manufactured to exact specifications.
Step 3 – Professional Installation
Old units are carefully removed. Frames are secured, sealed, and insulated.
Step 4 – Final Inspection
We test operation, locking systems, and airtightness before completion.
Frequently Asked Questions
Most double glazed windows last 20–30 years depending on the frame material and installation quality.
Yes. Modern double glazed units significantly reduce heat loss and improve overall home energy efficiency.
Yes. The sealed glass unit helps reduce outside noise, creating a quieter indoor environment.
Energy-efficient windows can improve BER ratings and enhance a property's appeal to potential buyers.
Your dream windows are just a call away—get your quote today!
Real Feedback from Our Customers
Contact Details
Mail us at:
info@expertwindows.ie
Call us at:
012-336-092
087-363-9977
Find us at:
Expert Windows & Doors Dublin
UNIT 3, 4 John F Kennedy Park, John F Kennedy Industrial Estate, Dublin 12, D12 FR82
Open Hours:
Monday- Thursday 8AM-5PM
Friday 8AM-4PM
Saturday 9AM-5PM
