Energy renovation in Marche-en-Famenne

Second pillar: efficient and sustainable installations

Once the envelope is improved, attention turns to the equipment that produces and distributes heat. The goal is to heat more efficiently, with less primary energy and a reduced carbon footprint.

Heating and heat production

Central heating is the heart of winter comfort. If your system is old or undersized, replacing it with a condensing boiler of the latest generation already brings substantial savings. To go further, installing a heat pump (PAC) allows you to draw energy from the outside air or the ground to heat the interior and supply your thermodynamic water heater.

Renewable energies and air conditioning

To reduce dependence on the electrical grid, installing photovoltaic solar panels on south-facing slopes in Marche is a forward-looking choice. By producing your own electricity, you power your household equipment and, if applicable, your reversible air conditioning system — a device that ensures comfort during summer heat peaks while serving as an ultra-efficient supplementary heating source in mid-season.

Intelligent management: ventilation and regulation

Double flow VMC: healthy air without heat loss

A thermally renovated house is a more airtight house. To maintain healthy indoor air, the installation of a controlled mechanical ventilation (VMC) system is essential. It removes moisture produced by occupants and indoor pollutants without cooling the rooms — double flow VMCs recover up to 90% of the heat from the extracted air.

Intelligent regulation and precise control

We also integrate intelligent regulation systems: connected thermostats, programmable thermostatic valves. These tools allow for precise control of consumption, room by room, according to actual occupancy patterns. In Marche-en-Famenne, our specialists advise you on the technologies best suited to your home and lifestyle.

Step-by-step renovation strategy: towards a high-performance home

Improving the energy performance of a house in Marche-en-Famenne is not just about adding work. What matters is the sequence: some interventions only make sense if others have been completed beforehand.

Prioritize by energy gain, not by budget

An energy renovation does not happen in a single project — especially in Famenne houses built before 1985. The approach we advocate is that of prioritized step-by-step renovation: the Housing Audit defines a trajectory in which each intervention is ordered based on its impact on the energy performance certificate (PEB) score and its return on investment. The envelope always comes before the equipment: a heat pump installed in a poorly insulated shell will never be cost-effective.

From class F to passive house: a realistic trajectory

The typical trajectory for a house in Marche from the 1960s to 1980s: attic insulation (step 1, immediate gain) → window replacement (step 2) → wall insulation from the outside or inside (step 3) → installation of a double flow VMC (step 4, inseparable from the previous step) → replacement of the boiler with a heat pump (step 5, once the envelope is closed). At each step, the PEB score improves and Rénopack grants follow. The final goal — label B or A — is achievable in two to three phases over five to ten years.

Impact on property value

In Wallonia, the correlation between the PEB class and the sale price is documented: a property with label C sells on average 10 to 15% above an equivalent property with label F or G. In Marche-en-Famenne, where the stock of old real estate is significant, energetically renovating your house is not just a comfort choice — it is a measurable heritage investment.

Walloon grants and 6% VAT: optimize financing

Housing Audit and insulation grants in Wallonia

The Walloon Region massively supports the energy renovation of existing homes. By undergoing a Housing Audit conducted by an accredited auditor, you gain access to significant grants for insulation and high-performance heating systems. These aids can cover a very significant portion of the cost of the work, especially for low or middle-income households.

Reduced VAT and cumulative Rénopack grants

A direct saving of 15%: that is what the transition from the normal VAT rate (21%) to the reduced rate of 6% represents, reserved for work in buildings over ten years old. The Rénopack grants also allow for the bundling of several types of work into a single file to simplify administrative management. We help you compile these files and identify each applicable tax advantage for your situation.

Why choose Avenir Rénovations in Marche-en-Famenne?

An expertise in Famenne construction

The Avenir Rénovations team knows the specifics of Famenne construction: limestone houses, farms to renovate, under-insulated buildings from the 1970s. We do not offer standard solutions: we design energy renovations tailored to your house, its exposure, its construction system, and your comfort goals.

A complete management from A to Z throughout the greater Marche area

From the removal of old equipment to the final cleaning of the site, we manage all interventions. We operate throughout the greater Marche area — Waha, Marloie, Aye, Hargimont, On — and in neighboring municipalities: Rochefort, Ciney, Hotton, Nassogne, and Durbuy.

Common issues and our solutions

Heat pump installed in an under-insulated house: disappointing performance

A heat pump is sized to operate with low temperatures in a building that retains heat well. Installed in a house where the walls, roof, or frames leak energy, it runs continuously without ever reaching its optimal efficiency — the expected savings do not materialize. At Avenir Rénovations, we impose a simple rule: the envelope first, the equipment second, in that order without exception.

Missing mechanical ventilation after enhanced insulation: condensation and mold in sight

Enhancing insulation without installing controlled mechanical ventilation turns your house into a thermos — airtight but saturated with humidity. In the Famenne context where winters are long and humid, this risk is particularly high: condensation settles on the remaining cold walls and mold appears in poorly ventilated corners. We systematically integrate mechanical ventilation into every enhanced insulation project, choosing the double flow system that recovers heat while renewing the air.

Incomplete or late premium application

The Rénopack premiums and Walloon energy premiums are subject to strict conditions: work carried out by approved contractors, precise supporting documents, deadlines for submission to be respected after the end of the site. An incomplete or late application leads to a simple refusal, with no recourse. Our specialists take care of the preparation of these administrative files from the planning phase, so that nothing is forgotten and every euro of premium you are entitled to is properly paid.

Frequently asked questions

What is the PEB certificate and why is it important for a house in Marche-en-Famenne?

The PEB certificate (Energy Performance of Buildings) assesses the energy consumption of a dwelling on a scale from A+ (very efficient) to G (very energy-consuming). In Wallonia, it is mandatory for any sale or rental of a property. Improving your PEB score through an energy renovation directly enhances the property value: a better-rated property sells faster and at a better price, in addition to generating immediate heating savings.

Can multiple energy premiums be combined for the same renovation in Marche?

Yes, this is even the goal of the Rénopack premiums in Wallonia. Through a Housing Audit conducted by an approved auditor, it is possible to group several types of work — insulation, heating, ventilation — into a single administrative file. These premiums can cover a very significant portion of the total cost, especially for households with modest or medium incomes. The 6% rate advantage applies in parallel for any home over ten years old.

Should one choose a heat pump or a condensing boiler for a Famenne house?

The heat pump (PAC) is the most efficient solution in the long term: it consumes little electricity to produce a lot of heat and is compatible with underfloor heating. It is particularly effective in a well-insulated house. The condensing boiler remains relevant for insufficiently insulated homes or in configurations where the high-temperature radiator network cannot be modified. The Avenir Rénovations team analyzes your house's configuration to recommend the most suitable solution for your situation.

Does enhanced insulation also require ventilation in Marche-en-Famenne?

Yes, this is a fundamental technical rule. Making a house more airtight without renewing the indoor air generates humidity, condensation, and risks to air quality. The installation of a mechanical ventilation system (VMC) is inseparable from any serious thermal renovation project. Double flow systems recover up to 90% of the heat from the extracted air, thus limiting losses related to air renewal.

Do you have an energy renovation project in Marche-en-Famenne?

Don't let your money escape through the walls. Start with a Housing Audit to know your current EPC score and define your renovation trajectory — then contact us to turn this plan into a concrete project. Avenir Rénovations coordinates every step, from attic insulation to heat pump installation, so that your home in Marche achieves the label it deserves.