How can I install a glass roof extension at the best price?
When you start to feel cramped in the house you love, you start to want to extend the walls. The desire to have a larger living room, open to the outside, or a brighter, more functional kitchen, is now achievable with an AKENA made-to-measure extension.
Opt for a glass roof extension and gain space and light
In many cases, there's no need to embark on major structural work to reclaim space. There's no need to turn to a construction company. Is your house on a large enough plot of land? Now's the time to think about installing a house extension.
A house extension can be vertical: the enlargement is made by raising the height of the house. In addition to obtaining permission from your local authority, this requires major work, as the roof has to be removed to add a storey. The advantage of this solution is that it is completely integrated into your house, giving you the benefit of an extra storey. But the budget for such an operation is substantial and the work is complex. And it's not always practical to have to erect an extra storey to enjoy the extra space.
You can opt for a solution that provides vertical continuity: a conservatory-style house extension, which is grafted onto a room on the ground floor of the house. It gives your house maximum openness to the outside world.
The price of a glass roof extension is more affordable than that of an extension, because the work involved is less extensive. You'll get more light and be able to adapt its style to that of your home. It's the solution that best enhances the appearance of your home, while giving you a practical, pleasant new space to live in.

How can you turn a glass extension into a comfortable, attractive living space?
Fitting out your glass roof extension
One of the main advantages of a glass extension is the exceptional amount of natural light it provides. The large windows and bay windows maximise light, reducing the need for artificial lighting during the day. The orientation of your extension is important. Facing south, it will provide optimum exposure to the sun's rays, while avoiding excessive heat in summer and intense cold in winter.
The choice of furniture for your glass extension should reflect its intended use. Choose furniture that matches the extension's open, airy aesthetic, so that you can make the most of its status between interior and garden, between the domestic world and nature.
To guarantee optimum comfort all year round, take care with the thermal and acoustic insulation of your glass extension. High-quality materials, such as double glazing, are essential for maintaining a pleasant temperature and reducing outside noise.
Extending the living room, kitchen or another room?
Although we often think of a glass roof extension as an enlargement of the living room, there's nothing to stop it being used as an extension to another room. The glass roof extension can be adapted to almost any situation.
Extend the living room to create a bright, welcoming living space, ideal for family gatherings or relaxing. It's the winning choice for most families.
Adding an extension to the kitchen opens up the room to the outside, creating a convivial space for cooking and entertaining. The kitchen can become the beating heart of the house, the place where people gather while enjoying the view of the outdoors.
It could even be used as an extension to a bedroom, if you think about the possibility of closing off the windows. Waking up in the early hours of the morning under the rays of a vibrant sun, leaving your bed to walk through the door and immediately finding yourself on the lawn, still full of dew...
In all cases, think carefully beforehand about the precise purpose of your glass roof extension.
What criteria should you consider when enlarging your home?
A glass roof extension requires a definite budget, but it is possible to maximise your investment if you follow these few tips.
- Choice of materials: as we've seen, choosing aluminium is the best compromise for a beautiful, high-performance, long-lasting glass roof extension. Aluminium is a solid material that requires little maintenance. You can also choose a made-to-measure aluminium colour, so that your home extension is in harmony with your house.
- Optimising size and shape: a square or rectangular structure will generally be cheaper to build than a complex or curved shape. Similarly, considering a size that is perfectly suited to your real needs avoids unnecessary expenditure on non-essential extra space.
- Project and works management: consider managing the project yourself if you have the necessary skills and time, which can save you project management costs. You can also choose less busy periods for construction, during which some contractors may offer reduced rates.
The price of an aluminium glass roof extension depends partly on the materials used
The large glass panels of your extension rest on a structure that can be made from a variety of materials.
- Wood is robust, but requires a lot of maintenance and tends to move over time. It also adds significantly to the cost of the glass extension.
- Concrete lacks elegance and can show cracks. It insulates fairly well and is fairly inexpensive.
- PVC, the least expensive option, insulates well. However, it won't last as long as the other materials.
- Wrought iron is not very sturdy, but is aesthetically pleasing. However, it is much more expensive than the other materials and deteriorates easily over time.
- Lastly, aluminium has a number of advantages: it's undeniably robust; it's sober and attractive, but it's also light and durable. It requires very little maintenance, just a sponge and soapy water.

What is the average budget for a glass roof extension in France?
The price of a glass roof extension can vary significantly depending on a number of factors, including the materials used, the surface area, the complexity of the project and the specifics of the installation (roof, foundation, insulation, etc.). On average, the price for a glass roof extension is between €1,500 and €3,500 per square metre. This price range generally includes the costs of design, materials, construction and installation.
To give you a clearer idea, here are some estimated prices for different sizes of glass roof extension:
- 12 m²: Between €18,000 and €40,000
- 15 m²: Between €22,500 and €50,000
- 20 m²: Between €30,000 and €70,000
- 40 m²: Between €60,000 and €140,000
These estimates are based on the average price of a glass roof extension per square metre and may fluctuate depending on the specific details of each project. Please note that additional features, such as integrated heating systems, automated blinds or special roofing solutions, can increase the overall cost.
Before making any commitment, it's essential to ask for a detailed estimate for your extension. With over 40 years' experience, AKENA has become the French benchmark for glass roof extensions, carports and pergolas. Get in touch with one of our advisers. You'll benefit from the advice of an expert. They'll be able to point you in the direction of the best solution for your needs, and offer you a made-to-measure project on the best possible terms. They will also help you with the administrative formalities involved in obtaining planning permission. Finally, given the price of the glass roof extension you have chosen, he will be able to offer you advantageous credit solutions.
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