Why choose Avenir Rénovations?
Why install a single-flow ventilation system in French-speaking Switzerland
Choosing a single-flow ventilation system is a strategic decision that meets several needs: comfort, hygiene, and preservation of the building. This mechanical ventilation system ensures continuous extraction of stale air, replacing it with fresh air entering through dedicated grills or openings.
Improvement of indoor air quality
A single-flow ventilation system effectively removes air laden with humidity, odors, and pollutants while ensuring regular renewal. This constant extraction helps maintain a healthy and pleasant indoor environment, reducing respiratory and allergic risks. Humid areas such as the kitchen, bathroom, or laundry room particularly benefit from this targeted ventilation, which prevents air stagnation and moisture-related damage.
Prevention of mold and damage
Excessive humidity is one of the main enemies of comfort and durability in a home. By quickly eliminating air saturated with water vapor, the single-flow ventilation system prevents condensation on walls, protects materials, and avoids mold growth. This preventive action not only preserves the structural integrity of the building but also maintains an intact interior aesthetic over the long term.
Cost-effective and efficient solution
Compared to other ventilation systems, the single-flow ventilation system offers excellent value for money, both in purchase and energy consumption. Its installation is quick, maintenance is minimal, and its components are durable, making it a preferred choice for renovations and new constructions. By optimizing air circulation, it also contributes to better thermal comfort without generating excessive expenses.
Steps for installing a single-flow VMC in the French-speaking part of Switzerland
Each project for the installation of a single-flow VMC follows a rigorous methodology, from the preliminary analysis to the final commissioning. This structured process ensures not only the efficiency and reliability of the system but also its compliance with Swiss standards regarding ventilation, electrical safety, and energy efficiency. By adhering to this sequence of steps, we ensure an optimized, durable implementation that is perfectly suited to the technical and architectural characteristics of each home.
The different types of single-flow ventilation systems
There are several variants of single-flow ventilation systems, each suited to specific configurations and needs. The choice of system will depend on the type of housing, its insulation, and the desired goals in terms of comfort and efficiency.
This model ensures a constant airflow, regardless of indoor or outdoor conditions. It guarantees regular air renewal, is simple to implement, and low maintenance. This system is particularly suitable for homes where humidity and odor management needs to be constant without requiring automatic adjustments.
The hygro-regulated VMC automatically adjusts its flow rate based on the ambient humidity level measured in the rooms. This intelligent operation optimizes energy consumption by reducing the flow when the air is dry and increasing it in case of high humidity. This adaptability ensures an optimal balance between comfort, efficiency, and energy savings.
In this type of installation, a single motor unit serves the entire dwelling through a network of ducts. This configuration offers centralized control, increased efficiency, and uniform air quality, while facilitating maintenance. It is particularly suitable for individual houses or large apartments.
Unlike the centralized model, the decentralized VMC operates room by room, without a complex duct network. Each unit is installed directly in the wall or window, ensuring targeted extraction of stale air. This option is ideal for light renovations or homes where installing a network is difficult.
How much does the installation of a single-flow VMC cost in the French-speaking part of Switzerland
The cost of a single-flow VMC depends on several parameters, including the type of system chosen, the area to be ventilated, the complexity of the installation, and any additional options. The prices below generally include the technical study, the supply of materials, the installation, adjustments, and warranty.
| Type of service | Price per m² (CHF) | Average total price (CHF) |
| Self-regulating single-flow VMC | 70 to 90 | 1,200 to 1,800 |
| Hygro-regulating single-flow VMC | 80 to 110 | 1,500 to 2,200 |
| Centralized single-flow VMC | 90 to 120 | 1,800 to 2,600 |
| Decentralized single-flow VMC | 100 to 140 | 1,200 to 2,000 |
These prices are indicative and may vary depending on the technical specifics of your home and installation constraints. A personalized quote is essential to obtain an accurate estimate tailored to your project.
The advantages of a professional installation
Entrusting the installation of your single-flow VMC to Avenir Rénovations Suisse guarantees a result that complies with standards, optimized for performance and durable over time. Our expertise covers all stages, from technical study to commissioning.
Compliance with Swiss standards
The installation is carried out in accordance with local regulations and current ventilation standards. This adherence to requirements ensures the safety, efficiency, and durability of the equipment, while allowing you to benefit from potential financial aid.
Optimization of energy efficiency
Our technicians accurately size your VMC based on the volumes to be ventilated and the thermal characteristics of your home. This optimization helps reduce electricity consumption while ensuring impeccable air quality.
Discreet and aesthetic integration
A careful installation takes into account the visual integration of vents and ducts to preserve interior harmony. We prioritize discreet solutions tailored to the architecture of each room for optimal visual comfort.
Regulations for the installation of a single-flow VMC in French-speaking Switzerland
The installation of a ventilation system is governed by rules aimed at ensuring the safety, energy efficiency, and comfort of occupants. In French-speaking Switzerland, regulations may vary by canton, but some obligations are common.
Permits and administrative procedures
In most cases, the installation of a single-flow VMC indoors does not require a building permit. However, if visible openings from the outside are planned, a declaration or municipal authorization may be required. It is therefore recommended to check local requirements before starting work.
Compliance with Swiss ventilation standards
The design and installation must comply with the requirements of the SIA 382/1 standard related to ventilation and air conditioning systems. This defines the minimum fresh air flow rates per room and the airtightness requirements to ensure optimal air quality and controlled energy consumption.
Integration in condominiums (PPE)
In a condominium, any modification project affecting common areas, such as facades or roofs, must be approved by the assembly of co-owners. Aesthetic constraints may also apply to preserve the architectural harmony of the building.
Electrical safety and OIBT compliance
Electrical connections must be made by a qualified professional, in accordance with OIBT standards. This ensures not only the safety of the installations but also their durability and compliance with regulatory inspections.
Options and additional features to optimize your single-flow ventilation system
A single-flow ventilation system can be enhanced by adding equipment and features designed to improve performance, usability, and durability. These options allow the system to be adapted to the specific needs of the home, the occupants' lifestyles, and local climatic conditions. By integrating these additional devices, it is possible to optimize indoor air quality, reduce energy consumption, and extend the lifespan of the installation while ensuring optimal comfort on a daily basis.
High-performance filters
The addition of fine particle filters helps to trap dust, pollen, and other allergens, thereby improving the quality of incoming air. This option is particularly interesting for urban areas or households sensitive to respiratory issues.
Hygro-regulatable extraction vents
These vents automatically adjust the extracted air flow based on ambient humidity, allowing for intelligent ventilation management. They help to reduce electricity consumption while maintaining optimal comfort.
Programmable control system
A programmable control module allows for the definition of operating time slots, optimizing energy management. This option is ideal for adapting ventilation to the occupants' lifestyles.
FAQ on installing a single-flow ventilation system in French-speaking Switzerland
Is a permit required to install a single-flow ventilation system?
In most cases, no authorization is required for a system installed indoors. However, if the installation involves visible modifications from the outside, a municipal authorization may be necessary. We advise you on the procedures suitable for your municipality.
What maintenance is required for a single-flow ventilation system?
Regular maintenance is essential to preserve the performance and longevity of the system. This includes cleaning or replacing filters, dusting the vents, and checking the proper functioning of the motor. An annual inspection by a professional is recommended.
Does the single-flow ventilation system consume a lot of electricity?
This type of ventilation is one of the least energy-consuming systems. Its consumption generally ranges from 50 to 150 kWh per year depending on the model and usage, which represents a very moderate cost on the energy bill.
Can a single-flow ventilation system be installed in an old house?
Yes, it is entirely possible to install this system in an old home, provided that the duct layout and vent positioning are adapted. Our experts conduct a diagnosis to assess feasibility and propose the most suitable solution.
What are the signs of a faulty ventilation system?
Unusual noise, decreased air flow, or the appearance of excessive humidity in rooms are indicators that a check is necessary. Preventive maintenance helps avoid these inconveniences and extends the lifespan of the installation.
Quick and Professional Installation of Single-Flow Ventilation with Avenir Rénovations Switzerland
Choosing to install a single-flow ventilation system in French-speaking Switzerland is a wise decision to improve indoor air quality, prevent humidity issues, and protect the structure of your home. This system, both simple and effective, represents a sustainable and economical solution to meet daily ventilation needs.
At Avenir Rénovations Switzerland, we support you from design to commissioning, including model selection, installation optimization, and ensuring full compliance with Swiss standards. Our interventions are carried out by qualified professionals who care about both the technical performance and the aesthetics of your installation.
We operate throughout French-speaking Switzerland, including Geneva, Vaud, Neuchâtel, Fribourg, Valais, and Jura. Contact us today to obtain a personalized quote and benefit from a single-flow ventilation installation tailored to your home, your needs, and your comfort.
