VELUX Replacement Supply & Fit Service

Before and after images - old and new roof windows for GBI market

Replacement Supply & Fit service

Upgrading your old roof windows couldn't be easier with the VELUX Replacement Supply & Fit service.

We’ll provide your new roof window and oversee the installation with our trusted Certified Installers. Sit back, relax and let VELUX do the heavy lifting.

Complete the form Tell me more

Mess-free, stress-free roof window replacement by VELUX

1. Note your VELUX roof window codeTake a note of the product code from the dataplate on your roof window, located in the corner of the top sash behind the ventilation flap.

Show me how

2. Contact the teamGive us a call on the number below or complete the short online form. We'll be in touch with a no-obligation quote for your replacement roof window

Complete the form

3. Relax and let VELUX take care of the restQuality is guaranteed with one inclusive quote and by our VELUX Certified Installers. Most replacements can be completed from the inside of the home, in just 4 hours.

Ready to replace? Reach out today:

Our replacement team will help you every step of the way – from specification through to completed installation.

Tell us about your project
Optional Step
Optional: Please provide old roof window code(s). Show me how.
Provide us with your address details
Address *
County *
Please enter your postcode and then select your location from the list.
How can we contact you?
Your data will only be used to provide you with advice in accordance with our privacy policy.
First name *
Surname *
Email *
Telephone *
VELUX Company Ltd processes your data in line with our Privacy Policy.
By clicking the “Submit" button I have accepted that VELUX Company Ltd may send me product advice and recommendations. VELUX Company Ltd may share the information with relevant independent installers or dealers in order for them to assist with arranging an installation. Our design is a result of information you have shared and requires installer validation to ensure compliance with building regulations.
I accept that the data I have provided is used by VELUX to map my preferences and send me tailored marketing regarding VELUX roof windows, accessories and services through e-newsletters as well as personalised ads on platforms such as Facebook and Google. I can withdraw my consent at any time by clicking the unsubscribe button in the email, or as described in the Privacy Policy.
I hereby confirm that VELUX may use my mobile number and contact me via WhatsApp for the purposes of scheduling appointments, organizing my project, etc.
VELUX is not responsible for data processing by WhatsApp or Meta. The WhatsApp Terms of Use apply. Consent may be withdrawn at any time with future effect by sending an email to daylight@velux.co.uk.

Same day. Straight swap: Total transformation!

VELUX roof windows fit into existing roof openings, so there's no structural work needed - done in hours, not days.

BeforeAfter

Replacement costs: what to expect

The average cost for the supply and installation of one roof window is between €1400 and €1800. This cost is a broad average - your exact replacement quote will depend on the size and specification of your roof window. Speak to a member of our team to determine the best options for your lifestyle and budget.

When you balance the costs, it starts to look like a good investment. Older roof windows can start to lose their edge - a little more draughty, a little less efficient. A straightforward replacement means your home stays comfortable year-round, and your heating bill isn't working overtime to compensate.