Why choose Avenir Renovations?
Cold floors, signs of nonexistent or degraded insulation
Many old homes in Belgium still have uninsulated floors, especially above a crawl space or basement. This creates a constant feeling of cold and unnecessary energy expenses.
Daily discomfort
A cold floor is a significant source of discomfort, especially in bedrooms, living areas, or on the ground floor. Insulating the floor helps reduce the cold wall effect and temperature variations between rooms.
It also contributes to better temperature uniformity throughout the home, limiting localized cold spots.
Unnecessary overheating of the heating system
The heating system must operate longer to compensate for heat loss through the floor. This leads to excessive consumption and premature wear of equipment.
Insulating the floor thus optimizes the operation of the central heating, extends the lifespan of boilers and heat pumps, and reduces maintenance costs.
Risk of humidity and mold
An uninsulated floor can promote condensation and the appearance of fungi, especially in the presence of a poorly ventilated crawl space or a damp basement.
Thermal insulation also helps limit moisture rising and improves the indoor environment, which is particularly important in old houses.
Our floor insulation techniques in renovation
Depending on accessibility, floor structure, and technical constraints, we offer the most suitable solution to improve energy performance without compromising comfort or aesthetics.
Why trust Avenir Rénovations to insulate your floors?
Floor insulation requires a good understanding of technical constraints, the existing structure, and the materials to be used.
We analyze the nature of the floor, the accessibility underneath, the available height, and the risks of moisture to guide you towards the most relevant method.
We also assess the impacts on door thresholds, stairs, and interior circulation for a well-planned project without unpleasant surprises.
We use high-performance thermal insulators that are resistant to compression and moisture, such as:
- Polyurethane panels (PIR): very good efficiency, low thickness
- Mineral wool in rolls or panels: optimal quality/price ratio
- Wood fiber panels: natural and breathable insulation, ideal for eco-friendly homes
Each material is selected according to your needs, the desired level of insulation, and installation constraints.
Our interventions are carried out by experienced professionals, in compliance with thermal, acoustic, and fire safety insulation standards.
We also ensure perfect continuity between the different insulation sections to eliminate all thermal bridges.
What is the price of floor insulation in Belgium?
| Type of floor insulation | Average price including tax / m² |
| Insulation from below (crawl space) | 40 to 80 € |
| Insulation from above (with covering) | 70 to 120 € |
| Integration into overall renovation | 100 to 150 € |
Prices vary according to the type of insulation, accessibility, surface area, technical constraints, and chosen finishing covering. A precise quote is established after a technical visit.
FAQ – floor and flooring insulation
What is the most effective method for insulating a floor?
Insulation from below is ideal when the crawl space or basement is accessible: it does not reduce the height of the rooms and does not alter the existing flooring.
If this option is not possible, insulation from above can yield very good results, especially when integrated with a flooring change.
Each solution is tailored to the context of the home: we help you make the right choice.
Can floor insulation be done without major renovations?
Yes. Insulation from below does not require any interior dismantling. Even insulation from above can be done without major work if it is integrated with a new covering (laying parquet on thin insulation, for example).
We always prioritize quick, clean solutions suitable for occupied homes.
Do energy grants cover floor insulation?
Yes, floor insulation is part of the work eligible for regional aid. In Wallonia and Brussels, it can lead to variable amounts depending on your income and the insulated area, provided that minimum performance (R-value) is met and a certified company is used.
Avenir Rénovations supports you in preparing the application, from the PEB audit to submitting the documents to the administration.
Can I combine floor insulation with underfloor heating?
Absolutely. It is even recommended to do so. Good insulation beneath the underfloor heating prevents heat loss downward and improves system efficiency.
We offer a complete combined solution if you wish to integrate underfloor heating into your renovation project.
Does floor insulation improve acoustics?
Yes. Well-executed insulation reduces impact noise (footsteps, falling objects) as well as airborne noise between floors. This is particularly useful in terraced houses or homes with a basement or garage below.
Give your home an insulated and comfortable base
Floor insulation, often overlooked, is an essential lever to improve your thermal comfort, acoustic insulation, and save energy.
With Avenir Rénovations, you benefit from a tailored technical solution, installed according to the rules of the trade and eligible for regional aid.
Request your free quote today, and transform your floor into a true asset for your comfort and your wallet.
