Velux Window Replacement

Cost-effective roof windows replacements and upgrades

Roof windows are a fantastic roof glazing solution but over time they will deteriorate and eventually need to be replaced. We can replace any roof window or skylight with a Velux replacement or upgrade and it is easier than you may think.

Absolute Roof Windows are certified Velux skylight installers and can tailor all new and replacement roof windows to suit your specific requirements. We can replace windows of the same size in just a few hours. The latest generation of skylights, roof windows, roof domes, and sun tunnels offer a broader range of sizes and options, as well as improved functionality.

What are the benefits of replacement roof windows?

  • Improved energy efficiency: The latest generation of Velux windows have excellent thermal insulation properties, keeping warm air trapped inside and bad weather out. This results in improved comfort levels.

  • Increased light and ventilation: New roof windows are up to 115 per cent more energy-efficient and have wider glass panes, allowing natural light to penetrate the space for longer. Better ventilation will also reduce moisture and air pollutants.

  • More choice: The latest range of Velux windows has something for everyone. Whether live on a busy road and want improved sound insulation or you would like to control your roof windows using an App on your smartphone, our windows offer the very latest in design and technology.

  • Easy: Roof windows do not often require any changes to the structure of your property, so are quick and easy. Our roof windows installation team offers excellent solutions.

Call now for a quote.

We can expertly:

When should you replace your skylights or roof windows?

There are various signs that your roof windows or skylights will need attention and may need to be replaced or renewed.

  • Condensation: If condensation is around the roof windows, they may not be sealed properly and it indicates a fault. This means that heat will be lost and in the most severe cases, the structure of your roof may be affected.

  • Cracks: If you can see cracks in the glazing, it is time for a roof windows replacement. New Velux windows have various glazing options, including windows with toughened glass, safety lamination to prevent glass from falling into a room if the glass breaks, and rain noise reduction.

  • Leaks: Roof windows and skylight leaks can happen for a number of reasons, including improper installation or external issues. These will either need to be repaired or the window will need to be replaced.

Upgrading your skylights or roof windows

One of the great things about Velux is that they have not changed the size of their standard roof windows for 40 years.

Your new window can be installed with minimal disruption, with scaffolding not required. In most cases, we can take the product code from the top edge of the window sash and give advice from there. Perhaps you would like to swap an old Velux with a new Integra electric or solar-powered roof windows, so you can open and close them with the touch of a button?

We are Velux-certified window installers and TrustMark and FENSA-accredited, so you can feel confident that any replacement will meet the strictest standards. All Velux replacements come with a 10-year guarantee on products and we also offer a guarantee on our workmanship. Blinds and electric windows come with a three-year guarantee.

For roof windows renewals and replacements, call us

Our expert team is always on hand to offer advice and quotes about replacement skylights and roof windows. Call now on 07933 546 880 or email



Call us on 07933 546 880 and we’ll arrange a visit



We provide a bespoke quote


Install / Replace

We fit and install (or replace) your new windows

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