Why choose Avenir Rénovations?
Why insulate your floor in Romandy
Floor insulation is not just a matter of comfort; it is also a strategic investment that directly affects your heating bills and energy footprint.
Improvement of daily thermal comfort
A poorly insulated floor can account for up to 10% of heat loss in a home. Good insulation eliminates the feeling of cold floors and provides a uniform temperature in every room throughout the year.
Reduction of energy expenses
By limiting heat loss through the floor, floor insulation helps reduce heating consumption. This results in significant savings on your bills and a medium-term return on investment.
Enhancement of your property value
Well-insulated homes are more attractive on the market. By improving the energy performance of your house or apartment, you increase its value and facilitate a potential resale.
Steps of a floor insulation project with Avenir Rénovations Suisse
Each floor insulation project is unique. Our teams follow a rigorous process to ensure optimal results.
The different floor insulation techniques
Several methods can be used to insulate a floor depending on its configuration and the possible access to the structure. Avenir Rénovations Suisse selects the most suitable technique for your situation.
This method involves removing the existing covering to install an insulating layer before laying a new floor. It is recommended during complete renovations and offers excellent thermal performance, but it slightly alters the finished floor height.
Ideal for houses with a crawl space or basement, this technique involves fixing insulating panels under the existing floor. It does not change the interior height and allows for intervention without changing the floor covering.
This solution is used when direct access to the floor is difficult. Loose or expanding foam insulation is injected into the cavity, filling empty spaces and improving thermal performance.
How much do floor insulation works cost in French-speaking Switzerland
The price of floor insulation mainly depends on the area to be insulated, the type of technique used, and the materials chosen. Here is an indicative table to help you estimate your budget:
| Type of service | Price per m² (CHF) | Average total price (CHF) |
| Top insulation | 70 to 120 | 4,200 to 7,200 |
| Bottom insulation | 50 to 90 | 3,000 to 5,400 |
| Injection insulation | 60 to 100 | 3,600 to 6,000 |
These prices include the technical study, supply of materials, installation, and finishing. A personalized estimate is essential for an accurate calculation.
Why entrust the insulation of your floor to Avenir Rénovations Suisse
Choosing Avenir Rénovations Suisse means opting for a comprehensive service and a tailored implementation adapted to the specifics of each home.
A precise and personalized diagnosis
Our experts come to your home to study the structure of the floor and identify thermal bridges. This detailed analysis allows us to design a customized insulation solution perfectly suited to your home.
High-performance materials
We use insulation materials that comply with Swiss standards, combining thermal efficiency, durability, and environmental respect. Each material is selected to offer the best quality/price ratio according to your priorities.
A meticulous implementation
Our qualified craftsmen ensure precise and rigorous installation, guaranteeing continuous insulation without thermal bridges. Their expertise ensures impeccable finishing and lasting performance over time.
Administrative support
We assist you in preparing your file to obtain available financial aid at the cantonal or municipal level. This support optimizes your budget and facilitates your administrative procedures.
A warranty on the work
All our interventions are covered by a warranty, a guarantee of quality and reliability. You thus benefit from lasting peace of mind, with a customer service ready to assist you if needed.
What materials to use for floor insulation
The choice of insulation materials depends on the desired thermal performance, budget, and technical constraints of the project.
Mineral wool
Available in panels or rolls, glass wool and rock wool offer good thermal and acoustic performance. Their installation is quick, and they are particularly suitable for insulation from below.
Expanded or extruded polystyrene
These rigid insulators provide excellent thermal resistance and are widely used for insulation from below floors. Their low thickness for high performance helps limit the loss of usable height.
Bio-based insulators
Expanded cork, wood fiber, or hemp are natural solutions that combine thermal performance with environmental respect. They are suitable for both above and below insulation.
Regulations for floor insulation in French-speaking Switzerland
In Switzerland, thermal insulation work is governed by specific rules to ensure safety, compliance, and energy efficiency of buildings. Insulating a floor generally does not require a building permit, but certain situations may impose administrative procedures.
Permissions and preliminary procedures
In most cantons, insulating a floor from the inside or below does not require special permission, as it does not affect the exterior appearance of the building. However, if the work involves a structural modification or a change in the use of spaces (for example, converting a basement into a living room), a declaration or permit may be required.
Thermal standards and legal requirements
Swiss energy standards, defined by the Confederation and the cantons, set minimum performance values for insulated elements. Floor insulation must meet the thermal transmittance coefficients (U) defined by standard SIA 380/1 to qualify for possible financial assistance.
Subsidies and financial incentives
Many cantons and municipalities offer subsidies under the Buildings Program to encourage energy improvement work. Insulating a floor can be part of a comprehensive project and allow for financial assistance covering part of the costs.
Take advantage of state aid for your floor insulation work
As part of its transition to a more sustainable energy model, the state offers several financial aid programs to encourage energy renovation work. An opportunity not to be missed to improve your comfort, reduce your energy expenses, and contribute to environmental protection.
By insulating your floor, you limit heat loss, increase the energy performance of your home, and sustainably enhance your property value. Thanks to public aid, a significant portion of the cost of the work can be covered, making this project even more accessible.
Whether through cantonal or municipal subsidies, the tax credit for energy transition (CITE), reduced VAT, or energy bonuses, several options are available to you. These aids are conditioned on the work being carried out by a certified RGE professional — such as the teams from Avenir Rénovations Suisse.
This is the perfect time to take action and enjoy all the benefits of effective floor insulation while optimizing your budget with the available financial support.
FAQ on floor insulation in French-speaking Switzerland
Should you insulate a floor in a new house?
Even new houses can benefit from thermal improvement through the floor if the initial construction does not meet current energy standards. Additional insulation optimizes comfort and further reduces heat loss.
What is the lifespan of floor insulation?
Depending on the materials used and the humidity conditions, floor insulation can last between 30 and 50 years. Synthetic insulators offer great longevity while natural insulators require regular monitoring.
Can you insulate a floor without removing the existing covering?
Yes, it is possible with insulation from below or by injection. This allows you to keep the covering in place while improving the energy efficiency of the home.
What are the signs of poorly insulated flooring?
A feeling of cold on the floor, high heating bills, or drafts at the baseboards may indicate that the floor has poor insulation.
Does floor insulation also improve acoustics?
Yes, in addition to reducing thermal losses, certain materials like mineral wool or wood fiber improve sound insulation by limiting the transmission of impact noise.
Provide yourself with a well-insulated floor with Avenir Rénovations Switzerland
Floor insulation is an essential step to improve thermal comfort, reduce energy expenses, and enhance your property in French-speaking Switzerland. Whether it is insulation from above, below, or by injection, Avenir Rénovations Switzerland supports you from design to implementation with effective and sustainable solutions.
We operate throughout French-speaking Switzerland, including Geneva, Vaud, Neuchâtel, Fribourg, Valais, and Jura. Contact us today for a free and personalized quote.
