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NI: 028 9018 3690
info@roofwindowspecialists.com
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CERTIFIED VELUX® INSTALLATION SPECIALISTS

The VELUX®
Experts
You Can Trust

Transform your home with natural light. Expert VELUX® roof window installation and replacement across Ireland & Northern Ireland. Trusted for over 25 years.

Get Free Quote Call 028 9018 3690
Watch How We Transform Homes
25+Years Experience
2615-Star Reviews
4.9★Google Rating
100%Certified Installers

What Our Customers Say

★★★★★
4.9

Based on 261 Google Reviews

Read all reviews on Google →
M

Mary MacDonnell

5 months ago

★★★★★

Excellent, professional & friendly service throughout whole process. Fitters took care to leave where they were working clean and tidy.

D

David Oliver

6 months ago

★★★★★

This company replaced 2 VELUX windows for me. I found them to be professional and friendly to deal with. The work carried out was excellent.

S

Simon Parke

6 months ago

★★★★★

Excellent service, all work provided was to the highest standard. Really knowledgeable with good impartial advice.

J

Jane Millar

5 days ago

★★★★★

Fantastic service from start to finish, window fitted with no mess and no fuss. Makes such a difference to the heat and comfort in the bedroom.

J

Jane McGivern

5 days ago

★★★★★

Job well done, highly recommend.

L

Liam S

5 days ago

★★★★★

We recently had our VELUX windows replaced and couldn't be happier with the results. From the very beginning, the communication was excellent.

Real Transformations

See The Difference

Professional VELUX® installation brings natural light, warmth, and lasting value to your home

Before
After

Reduce Energy Bills

Modern VELUX® windows feature advanced thermal insulation, dramatically reducing heat loss and lowering your heating costs year-round.

Save up to 40%

Enhance Natural Light

Transform dark spaces into bright, welcoming rooms. More daylight improves mood, productivity, and creates healthier living environments.

3× More Light

Increase Property Value

Premium VELUX® installation adds significant value to your property while improving its aesthetic appeal and marketability.

ROI: 80–100%
Get Free Quote Call Now

Areas We Cover

Serving Northern Ireland and the following counties across the island of Ireland

Northern Ireland Donegal Monaghan Cavan Louth Meath North Dublin
Window Identification

Find Your Window Code

Your VELUX® window code is essential for accurate quotes and compatible parts

How To Find Your Code

1

Open Your Window Fully

Open your VELUX® window as wide as it will go to access the top edge where the identification plate is located.

2

Look For The Metal Plate

On the top edge of your window, you'll find a silver metal data plate. This contains all your window's identification information.

3

Note The Code

Write down the model code (e.g., GGL, GGU) and size code (e.g., MK04, SK06) printed on the plate. This is your window code.

Can't Find Your Code?

▶ Watch Video Guide Contact Us
VELUX Window Code Location
Window Health Check | Roof Window Specialists

Window Health Check

Find out if your VELUX window needs attention

Step 1 of 5
What's your VELUX window code?
This helps us determine your window's age and specifications
Don't know your code? Find it here →
Window Details
Do you see condensation between the glass panes?
Not on the surface, but trapped inside between the two layers
💧
Yes
Moisture visible inside
✓
No
Glass is clear
Does your window open and close smoothly?
No stiffness, sticking, or difficulty operating the handle
✓
Yes
Opens easily
⚠️
No
Stiff or broken
Any visible damage to seals or frame?
Cracking, deterioration, or damage around the edges
🔴
Yes
Visible damage
✓
No
Looks intact
Do you notice drafts around the window?
Cold air coming through when the window is closed
🌬️
Yes
Feel cold air
✓
No
Well sealed
Why Choose Us

Northern Ireland's Leading VELUX® Specialists

VELUX® certified installers with over 4,000 successful installations across Northern Ireland and Republic of Ireland

4,000+

Windows Installed

Over 4,000 successful VELUX® installations across Northern Ireland and Republic of Ireland.

100%

Certified Installers

All our team are VELUX® certified with extensive training and experience in roof window installation.

25+

Years Experience

Over 25 years of expertise delivering premium roof window solutions with exceptional customer service.

24/7

Support Available

We're here when you need us with responsive customer support and emergency call-out service.

10

Year Warranty

10-year manufacturer's warranty on components, giving you complete peace of mind and protection.

4.9★

Google Rating

Rated 4.9 stars from 261+ verified Google reviews from satisfied customers across Ireland.

Transform Your Home with Natural Light

Expert VELUX® installation across Northern Ireland and Republic of Ireland. Get your free quote today.

Get Free Quote Call 028 9018 3690
Our Projects

Recent Work

See how we've transformed homes across Ireland with professional VELUX® installations

VELUX Installation

Northern Ireland

Roof Window Replacement

Northern Ireland

Window Installation

Republic of Ireland

Complete Transformation

Northern Ireland

37 Year Old Windows Replaced

Hillsborough, Co Down

Professional Installation

Republic of Ireland
Common Questions

Frequently Asked Questions

Everything you need to know about VELUX® window installation

How long does installation take?

+
Most single window installations are completed in 2–3 hours. Multiple windows can typically be done in one day. We'll give you an accurate timeframe during your consultation.

Do you remove old windows?

+
Yes, we handle complete removal of your old windows and dispose of all materials responsibly. We also repair and finish the surrounding area to ensure a perfect, weatherproof installation.

What warranty do you offer?

+
New VELUX® windows come with a 10-year manufacturer's warranty on components. As certified installers, our workmanship is also fully guaranteed.

Can you match my existing windows?

+
Absolutely. We can identify your existing window codes and match them perfectly, or recommend suitable upgrades while maintaining aesthetic consistency.

Do you work in all weather conditions?

+
We monitor weather conditions closely and only install when conditions are suitable. If weather prevents installation on the scheduled day, we'll reschedule at your earliest convenience at no extra cost.

What areas do you cover?

+
We cover all of Northern Ireland plus Donegal, Monaghan, Cavan, Louth, Meath, and North Dublin. Not sure if we cover your area? Call us on 028 9018 3690.
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