12 Jan

How to Perfectly Install Velux Roof Windows

Velux roof windows are a game-changer for anyone looking to transform their loft into a bright, airy space. And the best part? Anyone can install Velux roof windows (with a little support). In this article, we’re going to walk you through the steps required to get the perfect window for your loft.

How to install a velux roof window

Picking the perfect Velux window 

Choosing a Velux window isn’t just about picking any old window. You’ve got to think about your roof’s layout, how much light you want, and the vibe you’re going for. Velux has a ton of options, so you can find the perfect fit whether you want a little light or to turn your ceiling into a sunroof.

What tools do I need to fit a Velux window? 

To kick things off, you’re going to need the right tools. We’re talking about your usual carpentry gear – a hammer, a saw, a tape measure and that indispensable spirit level. Plus, don’t forget a drill, a screwdriver and maybe a sturdy ladder, depending on where your window is going.

How long does it take to fit a roof window?

If you’ve got some DIY chops, you might get it done in a few hours. If you’re new to this, give yourself a full day. It’s all about taking your time to get it just right.

How to install a Velux window


1. Measure and prepare

Size up the area and clear the tiles where the window will sit.


2. Frame installation

Fit the frame in place. Levelling is key here – we don’t want wonky windows.


3. Window time

Now, set the window into the frame. Make sure it’s snug and secure.


4. Make it waterproof

Use flashing here for a leak-free finish.


5. Tidy Up

Replace those tiles and sort out any inside trimmings.

Installation tips for optimal performance


– Correct positioning

Placing the window in the right spot on your roof is crucial for maximising light and ensuring a pleasing aesthetic.


– Insulation and waterproofing

Proper insulation around the window frame is essential to prevent heat loss and condensation. Waterproofing is also crucial to protect your home from rain and moisture.


– Safety measures

Always prioritise safety when working on roofs. Use appropriate safety gear and ensure the ladder or scaffolding is secure.

Looking after your Velux window

Once your Velux window is in, maintenance is easy. A regular clean and a quick check now and then should keep it in top shape. And if you ever need to replace a part, it’s easy to find what you need.

Quality Velux window supplier in London

In the market for Velux windows in London? Hitchcock & King have got you covered. We offer a variety of Velux window sizes and styles and can hook you up with all the bits and bobs you’ll need — all at a price that’s right.

Got questions on which Velux windows are right for your space or need some tips on the installation? Our team is ready to help. Contact us today to ask a question or place an order.

Need product advice or to place an order? Let us call you.