Quick and easy replacement of a roof window with a new VELUX solution

Replacing a roof window is not only a way to repair leaks or damage, but also a great opportunity to introduce more natural light into your home and improve its energy efficiency. Modern roof windows, such as VELUX models, offer significant benefits.

Roof windows installed many years ago may no longer meet today's energy standards. Modern windows, equipped with triple-layer glass and better seals, significantly reduce heat loss, which contributes to lower heating bills.

Discover how modern window upgrades can help you save energy and reduce heating costs here.

New windows have thinner frames, which allows for a larger glazed area. This means that more daylight enters the rooms, which increases the comfort of the interior. You can also consider installing a larger window or additional roof windows to brighten the space even more. As a rule of thumb, the glazing area should be at least 15-20% of the floor area to ensure an adequate level of natural light.

Modern roof windows provide better insulation from outside noise, which is especially important in densely populated urban areas. This makes the interior quieter and more comfortable.

By replacing old, worn-out windows with new models, you not only improve their appearance, but also benefit from modern features such as automatic opening, better ventilation and remote-control options. These features are especially useful if you have difficulty accessing the window.

You should consider replacing your roof window if you notice the following symptoms:

• Leaks – If your window is leaking air, this is a sign that the seals are damaged.
• Condensation – Condensation on the glass indicates problems with the insulation.
• Damage or damage to the frame – The window frame may become warped or damaged due to years of use.
• Difficulty opening/closing – A window that jams or is difficult to open is another sign that it may be worth replacing.

For more insights on how to recognize the best time to replace your roof windows and why it's important for energy efficiency and comfort, read our detailed article on when to replace roof windows.

Replacing roof windows may seem complicated, but with the right plan and a professional, the whole process can be quick and easy. The process of replacing a roof window is relatively simple, although it does require some preparation.

Here’s a detailed breakdown of the steps involved:

The first step in replacing a roof window is to remove the existing window. Installers carefully remove both the old window and the surrounding roof tiles or other roofing materials to provide access to the roof opening. This removal is essential to create adequate space for the new window to be installed. During this stage, special care must be taken not to damage the existing roof structure.

If replacing a window with a model of the same dimensions, the roof opening usually does not require modification. However, if the new window is larger, the opening will need to be enlarged accordingly. To do this, installers can add additional support beams to reinforce the roof structure. Preparing the opening is crucial to ensuring that the new window fits perfectly and provides optimum sealing. This stage also determines whether additional modifications, such as reinforced insulation, will be required.

Once the opening has been prepared, the new window frame is installed. This is one of the most important steps, which determines the stability and sealing of the entire installation. Modern roof windows, such as those offered by VELUX solutions, feature advanced sealing systems that minimize heat loss and protect against moisture.

Once the frame has been installed, the window sash is installed. Modern models offer a larger glazed area, which means more natural light enters the room. Installers ensure that the sash operates smoothly and that the opening and closing mechanisms are fully functional. Additional accessories, such as sun blinds or Venetian blinds, are often installed at this stage to improve user comfort.

Once the window has been installed, installers begin finishing work inside the room. In this phase, finishing elements are installed around the window, which connect it to the existing wall structure. Installing thermal insulation around the window is crucial to prevent thermal bridges, which could lead to heat loss or moisture condensation. Accuracy in finishing work ensures that the window connects aesthetically and functionally with the rest of the interior.

Replacing a standard roof window usually takes a few hours, but the installation time can be longer depending on the size and type of the new window and any additional work that may be required, such as widening the opening or installing accessories. In the case of more complex installations, such as replacing a larger window or installing multiple windows, the entire process can take up to two days.

Replacing a roof window in a metal roof tile presents certain challenges due to the construction of the metal roof covering. Metal roofing tiles have specific installation requirements that differ from traditional ceramic roofing tiles. Due to the profile and rigidity of the material, precision in installation is key, especially when fitting the window to the existing roof structure and ensuring tightness. When replacing, it is important to use dedicated sealing systems, such as VELUX flashings adapted to metal roofing tiles, which guarantee watertightness and appropriate thermal insulation.

The price of replacing a roof window in metal roofing tiles depends on several factors, including the size of the window, the condition of the roof covering and the complexity of the installation work. Metal roofing tiles require the use of appropriate materials, such as membranes or angles, which can increase the costs compared to standard roofing materials. Therefore, it is always worth getting a quote from an experienced specialist to accurately estimate the final cost.

If your VELUX roof window is in good condition and only the sash is damaged, replacing the entire window is not always necessary. In many cases, replacing just the roof window sash can be more cost-effective and faster, as it does not require removing the frame or carrying out any complicated work on the roof, which significantly speeds up the process.

The decision to replace the sash should be based on an assessment of the technical condition of the frame and the structure of the window. If the frame shows no signs of leaks, deformation or insulation problems, replacing the VELUX roof window sash may be sufficient. On the other hand, if the frame is damaged or outdated, a full replacement will be more effective, especially in terms of improving thermal insulation and energy savings. It is also worth considering a full replacement if you want to benefit from additional features such as electric window control or better ventilation.

The cost of replacing roof windows can vary depending on a number of factors, such as the number of windows to be replaced, the size of the window, the type of roof covering, and the window model you choose. The price of replacing a single roof window is usually lower, but if you plan to replace a larger number of roof windows, the price for comprehensive work may be more advantageous due to lower logistics and installation costs.

Replacing a larger number of roof windows may require a longer implementation time, but the final costs may be lower per window. Therefore, it is worth considering replacing several roof windows at once, especially if you are modernizing a larger attic area.

The condition of the roof also affects the costs. If the roof requires additional work, such as repairing the roof covering, the costs may increase. For this reason, it is always worth getting an accurate quote from a specialist to better plan your budget.

To ensure that the process of replacing a roof window goes smoothly, it is worth preparing properly.

First of all, make sure that the roof is in good technical condition. If the roof requires repairs, it is best to take care of this before replacing the window. It is also worth ensuring a suitable workplace for the installation team - remove any objects that may obstruct access to the window.

When replacing a roof window made of metal roof tiles, it may be necessary to match the new window to the existing roof system. Professionals involved in the installation will often advise on the best solutions to ensure a smooth replacement.

One of the most common questions asked by homeowners is how long it takes to replace a roof window. Fortunately, thanks to modern technology and experienced installation teams, a roof window replacement can be carried out in one business day. The process involves removing the old window, preparing the opening and installing a new one, including sealing and finishing.

The duration may be longer if the roof requires additional work, such as repairing the roof covering or replacing a roof window made of metal tiles. Therefore, it is worth consulting a specialist who will assess the technical condition of the roof before starting the work.

Replacing a roof window is a task that should be entrusted to specialists. A professional installation team has the experience and the right tools to carry out the replacement quickly and efficiently, minimizing the risk of errors. What's more, specialists are able to advise on the best solutions, such as choosing the right window or sealing that will provide better thermal insulation.

If you’re considering replacing your roof windows, hiring professionals can help you avoid unnecessary hassle. Professionals will ensure that your new windows are perfectly matched to your roof structure, and that the whole process goes smoothly.