Heating renovation: improve your comfort and energy performance

Heating

Heating often accounts for more than 60% of a Belgian household's energy expenses. A poorly designed or outdated heating system can thus be a major source of discomfort and energy waste. The renovation of the heating system is a key step to improve daily quality of life while reducing energy bills.

Avenir Rénovations offers a comprehensive approach to modernizing or transforming your heating system, with technical, aesthetic, and administrative support. We operate throughout Belgium to adapt your installation to current standards, your lifestyle, and your budget.

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    RÉNOVATION COMPLÈTE
    Rénovation complète
    EXTENSION-SURELEVATION
    Extension-surelevation
    RÉNOVATION ÉNERGÉTIQUE
    Rénovation énergétique
    RÉNOVATION INTÉRIEURE
    Rénovation intérieure
    RÉNOVATION EXTÉRIEURE
    Rénovation extérieure
    AUTRE PROJET
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Why choose Avenir Renovations?

Single point of contact

Complete site monitoring

Online customer area

State aid management


What heating system to choose for a comfortable home?

Replacing or renovating your heating system has become essential in many homes, both old and new.

Old energy-hungry systems

Many Belgian households are still equipped with outdated boilers, poorly sized radiators, or poorly insulated ducts. These systems have low efficiency, generate significant heat loss, and do not allow for effective temperature management.

They also lead to energy overconsumption, high bills, and a negative environmental impact. Their replacement is often the starting point for a comprehensive energy renovation.

A lack of comfort and regulation

The absence of programmable thermostats, distinct heating zones, or electronic regulation leads to temperature fluctuations, overheated rooms, and others that are too cold. Thermal comfort becomes difficult to manage.

Smart regulation not only improves the well-being of occupants but also enhances the energy performance of the home.

High maintenance costs

Old equipment is often prone to breakdowns, limescale deposits, or hydraulic imbalances. The result: frequent and costly repairs, sometimes unnecessary if a comprehensive renovation is preferable.

A well-designed modern system limits maintenance needs, improves the lifespan of components, and reduces the risk of breakdowns.

The different heating solutions offered by Avenir Rénovations

The different heating solutions offered by Avenir Rénovations

We offer modern heating systems that are energy-efficient and perfectly suited to the configurations of Belgian homes.

Performance, savings, and available grants in Belgium

Carrying out heating work with Avenir Rénovations ensures a high-performance, adaptable installation that is eligible for public aid.

We perform a thermal calculation for each project to ensure a stable temperature without energy waste and compatibility with existing equipment.

This helps avoid oversized or underperforming systems and optimizes long-term consumption.

Inertia radiators, multilayer underfloor heating, connected thermostats… We select reliable and recognized brands that guarantee performance and durability.

Our suppliers comply with European standards and offer extended warranties on their products.

Our teams work carefully and in coordination. We operate with minimal disruption to occupants, even during work occupancy.

The site is planned rigorously, deadlines are respected, and each step is monitored by a single contact person.

What is the cost of a heating renovation in Belgium?

Type of heating system Average price including VAT
Replacement of standard radiators 400 to 800 € / unit
Underfloor heating 70 to 120 € / m²
Multi-zone control installation 1,000 to 2,000 €
Complete central heating renovation 6,000 to 12,000 €

Energy grants may cover part of the costs, subject to conditions. We help you prepare the administrative file to obtain maximum financial support.

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FAQ – heating renovation in Belgium

What is the difference between conventional heating and low-temperature heating?

Low-temperature heating operates with water heated to about 35-45°C (compared to 60-70°C for a conventional system). It allows for better heat distribution, lower consumption, and is particularly suited for heat pumps and condensing boilers. It requires suitable emitters, such as specific radiators or underfloor heating.

This system is ideal for well-insulated or renovated homes with a focus on energy performance.

Can I keep my existing radiators if I change my boiler?

In some cases, yes. If the radiators are in good condition, properly sized, and compatible with the output temperature of the new boiler, they can be retained. However, for low-temperature boilers or heat pumps, it is often recommended to replace the emitters with suitable models.

We conduct a complete diagnosis before any intervention to assess feasibility.

Are there financial aids available for changing my heating system?

Yes. In Wallonia as well as Brussels, energy grants are available for the installation of low-consumption radiators, high-performance boilers, or smart regulations. The amount depends on the type of installation and your income. Avenir Rénovations assists you in preparing your grant application.

We also guide you in integrating these works into a comprehensive renovation eligible for other grants (PEB audit, insulation, ventilation...).

How long do the works take?

This depends on the type of installation. Replacing a radiator network generally takes 2 to 5 days. Installing underfloor heating or a complete system may require 1 to 2 weeks, especially if combined with other works (flooring, insulation...).

A detailed schedule is provided to you before the start of the work, including the phases of work and any drying times.

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Breathe new life into your heating

A good heating system means more comfort, less consumption, and a real added value for your home. Trust your project to Avenir Rénovations for a high-performance, customized, and sustainable solution.

Contact us now for a free visit and a tailored quote. Our experts will guide you through all the steps to modernize your heating and enhance your comfort of living.

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