We combine clear, expert advice with a local approach, so you can breathe easy from start to finish.
We explain complex systems in simple terms, for both experts and beginners.
Every home or business breathes differently, and we find the perfect solution for yours.
Our skilled team is ready to serve you in your region, from advice to flawless installation.
We guide you through every step, ensuring your ventilation system works perfectly.
From regulations to practical systems, we translate complex ventilation into understandable advice, so you can confidently make the right choice for your renovation.
You insulate your home, replace windows or renovate the attic, all interventions that increase airtightness. But without thoughtful ventilation, moisture, CO2 and fine dust can accumulate. The result? Mold, musty smells and even health problems. Ventilation replaces polluted indoor air with fresh outdoor air and ensures a healthy and comfortable indoor climate.
During a renovation, you immediately seize the opportunity to integrate the ventilation system into the home. That is more efficient than making interventions afterwards. Whether you choose a simple system C or a full system D balanced ventilation, we help you clearly see the possibilities.
In Flanders, the EPB regulation (Energy Performance and Indoor Climate) applies to new construction and major energy renovations. But what if you only replace your windows or renovate the bathroom?
In the case of a major energy renovation (IER), where you insulate at least 75% of the building envelope and also address the installations, you must meet the ventilation requirements. You must have a ventilation preliminary design and report drawn up by an EPB reporter. For smaller renovations, such as replacing windows or a bathroom, a full ventilation report is not mandatory, but minimum requirements do apply: you must guarantee supply of fresh air in dry rooms and extraction in wet rooms.
Check the exact requirements on Vlaanderen.be or ask our advice. We know the rules and ensure that your project meets the standards, without paperwork stress.
Not every system suits every home. We look at the options and their suitability for renovation.
In existing homes, system C is often the most affordable and simplest upgrade. A central fan extracts air via kitchen, bathroom and toilet. Fresh air enters through window vents. Ideal for renovation because no extensive duct network is needed, often an extraction duct to the roof suffices. Price indication: from €2,500 to €4,000, installation included (depending on the situation).
System D offers the highest comfort and is interesting if you renovate thoroughly and create an airtight envelope. It simultaneously supplies fresh air and extracts polluted air, with heat recovery up to 90%. This saves on heating. Ducts are required throughout the home, which requires more planning during the renovation. Price: count on €6,000 to €10,000 for a complete installation.
Decentralized units are placed in the outer wall of a specific room, such as the bedroom. They extract or supply air with heat recovery. Handy if you only tackle one room or cannot lay central ducts. Price per unit: €500 to €1,500, depending on the type.
Are your windows being replaced? Then immediately have ventilation grilles integrated. They are unobtrusive and provide the necessary air supply. Price: €50 to €150 per grille, including installation during window production.
Each intervention requires a specific approach. These are the main points of attention.
New windows are often much more airtight than old ones. Without ventilation grilles, insufficient air exchange occurs. Have the window manufacturer install grilles or opt for self-regulating grilles that respond to moisture or CO2. This meets the minimum supply requirements.
These are wet rooms where extraction is crucial. Provide powerful mechanical extraction, for example via a fan that you can connect to a presence detector or humidity sensor. Combine this with a non-return valve to keep cold air out.
An extra bedroom or office in the attic requires supply of fresh air. Provide a roof window with a ventilation grille or install a decentralized unit. Also think about transfer openings in the door or a grille to the hallway.
Insulation makes your home more airtight. Check whether the existing ventilation still suffices. Often it is wise to immediately install a system C or D, because the home otherwise becomes too humid. Request a ventilation audit to assess the risk.
An old chimney sometimes served as natural ventilation. Upon demolition, that ventilation disappears. Replace this with a mechanical extraction system in the relevant room.
The price depends on the type of system, the size of the home and the complexity of the installation. Below a realistic overview, based on average project costs in Flanders (indicative, for an exact price it is best to request a tailor-made quote).
Moreover, you can receive a premium for certain interventions via Fluvius. Ask our advisors about the current premium conditions.
Our approach
Every home breathes differently. That's why we first listen to your plans and inspect the home on site. Only then do we propose a system that works optimally, nothing more, nothing less.
Our installers know the Flemish building styles and regulations. Wherever you live, we come by for a site visit and take care of the complete installation.
Our quotes are transparent and detailed. You know exactly what you pay and why, without surprises afterwards.
We work with recognized materials and trained professionals. After installation, you receive a completion report for the EPB administration.
From Antwerp to Limburg, from the coast to the Flemish Ardennes: our ventilation specialists come to your home for advice and installation. We know the local nuances and rules, from city centers to rural villas.
Your ventilation quote
Request your personal quote today and benefit from clear tailored advice. Our local specialists are ready for you.
