each region has its own financial aid

There's a solution to every problem

Take advantage of Regional Financial Aid

As a company committed to the energy transition, you can benefit from regional financial aid for your energy improvement and ventilation network sealing projects. These schemes, available in Flanders, Brussels and Wallonia, will reduce your investment costs while maximising your long-term savings.

These grants support your efforts to optimise your infrastructure, reduce energy losses and meet growing environmental standards. Whether you are in the tertiary, industrial or logistics sector, these financial incentives are a strategic opportunity to make your buildings more efficient and competitive.

We can help you identify the right incentives for your projects and take full advantage of these opportunities to ensure an optimum return on your investment. Find out below about the specific grants available in each Belgian region.

Coq hardi des armoiries et du drapeau officiels de la Wallonie

Walloon region

Wallonia offers specific grants to help businesses make the transition to a more energy-efficient and environmentally-friendly economy. These subsidies, which have recently been reformed, can be used to finance projects such as improving the airtightness of ventilation systems, thereby helping to save energy and reduce the carbon footprint.

Vlaanderen wapen

Flemish Region

Wallonia offers specific grants to help businesses make the transition to a more energy-efficient and environmentally-friendly economy. These subsidies, which have recently been reformed, can be used to finance projects such as improving the airtightness of ventilation systems, thereby helping to save energy and reduce the carbon footprint.

Be Brussels logo (full)

Brussels Region

Wallonia offers specific grants to help businesses make the transition to a more energy-efficient and environmentally-friendly economy. These subsidies, which have recently been reformed, can be used to finance projects such as improving the airtightness of ventilation systems, thereby helping to save energy and reduce the carbon footprint.


Aid in wallonia

This information is provided for information purposes only. However, we cannot be held responsible in the event of error, changes to the system or misinformation.


Financial aid in Wallonia: Audits, grants and solutions for your energy projects

Improving the airtightness of your installations, reducing your energy losses and optimising your ventilation can represent a substantial investment. To help you do this, Wallonia offers a range of financial aid, subsidies and financing solutions. From 2025, an AMUREBA audit will be compulsory before you can benefit from any other aid. This preliminary diagnosis will enable you to identify the most effective energy improvement levers, guaranteeing optimum use of existing support schemes.

1. Des Primes

The Investment Allowance is aimed at SMEs and large companies located in Wallonia. It covers between 5% and 30% of the cost of the work, which can reduce, for example, a €20,000 project to a net cost of €14,000 if you obtain a 30% bonus. The application must be submitted before the work begins. Once the grant has been awarded and the work carried out, you submit your invoices to receive payment.

Lien :Prime à l’investissement

2. The susbsides

Before applying for any other grants, from 2025 onwards you will first have to undergo an AMUREBA audit. This scheme, managed by SPW Energie, has two components: AMURE (for industrial companies) and UREBA (for the tertiary sector, such as schools and administrations). These energy audits can be subsidised by up to 70%, significantly reducing their cost (for example, an audit costing €4,000 may only cost you €1,200). Once the AMUREBA audit has been carried out, you can then apply for other grants with full knowledge of the facts and maximise their impact.

In addition, Chèques-Entreprises can finance up to 50% of the cost of an audit or technical advice, reducing the cost of an audit from €2,000 to €1,000. You create an account online, choose an approved service provider and then submit your application.

Liens :

3. Financial Solutions

If you need additional financial support, there are solutions to support your project after the AMUREBA audit. SOWALFIN offers tailored bank loans and guarantees. Regional Invests can provide you with funds (loans, advances, equity) to support your development. Finally, the Helping Hand Loan allows you to involve private individuals in your circle, who will benefit from a tax advantage by financing you.

Liens : In brief :

From 2025 onwards, the AMUREBA audit will become the first step before applying for other grants, giving you a clear and objective view of your potential for energy improvements. By intelligently combining audits, grants, subsidies and financing solutions, you can significantly reduce the overall cost of your work, while optimising the performance and durability of your installations.


This information is provided for information purposes only. However, we cannot be held responsible in the event of error, changes to the system or misinformation.


Aid en the Brussels Regien

This information is provided for information purposes only. However, we cannot be held responsible in the event of error, changes to the system or misinformation.

Financial aid in Brussels: Audits, grants and solutions for your energy projects

Optimising the airtightness and ventilation of your installations means not only reducing your energy losses and enhancing the value of your property, but also significantly improving indoor air quality. Healthier, better-renewed air guarantees the comfort and well-being of your occupants. To support this approach, the Brussels-Capital Region offers a wide range of financial aid, subsidies and financing solutions. Here is a clear overview of the schemes available, so that you can take full advantage of them without having to spend hours looking.

Primes Énergie and Renolution

To encourage improvements in energy performance and air quality in buildings, the Brussels-Capital Region offers Energy Prizes and the Renolution programme. This direct financial aid can cover part of your insulation and airtightness work or the installation of efficient ventilation systems. The amounts vary according to the type of work involved, but can range from a few hundred euros to several thousand. Before starting work, simply submit your application to Brussels Environment.

  • Brussels environnement - Primes et aides financières pour professionnels bruxellois.
  • Prime Renolution

    • Subsidised energy audits

    An energy audit is the ideal starting point for pinpointing your needs in terms of airtightness, ventilation and improving air quality. To facilitate this stage, the Region will pay part of the cost of the audit, making it more accessible and cost-effective. Once the audit is complete, you'll know exactly what needs to be done and can apply for the appropriate grants. Lien : Prime RENOLUTION Audit énergétique

    Support and advice

    In addition to financial support, Hub.brussels, the Brussels Business Support Agency, can help you navigate through the various grants and subsidies available. It directs you to the most appropriate schemes, guides you through the process and advises you on which service providers to contact. This free service saves you precious time and ensures you make the right choices. Lien :

    • Hub.brussels - Accompagnement

      • Green financing and loans

      If you need additional funds, finance&invest.brussels and certain banks offer loans at preferential rates, known as ‘green loans’. By combining premiums, subsidised audits and advantageous loans, you can reduce your initial investment and guarantee greater profitability over the long term. Lien :

      • Finance&invest.brussels - ENERGY&RENO

        • Tax advantage

        By making energy-saving investments, you can also benefit from significant tax advantages. These tax deductions and reductions provide an additional incentive to improve the energy performance of your building. In practical terms, these tax benefits allow you to deduct part of the cost of your work (insulation, efficient ventilation systems, energy-saving equipment, etc.) from your tax base, thereby reducing the amount of tax you pay. By opting for sustainable improvements, you not only reduce your operating costs over the long term, but you also optimise your tax situation, which helps to make your investments even more profitable.

        In brief

        The Brussels-Capital Region offers you a full range of assistance, from direct grants to subsidised loans, subsidised energy audits and personalised support. By planning your project properly, you can improve not only your energy efficiency, but also the indoor air quality of your building. Consult the official links, ask Hub.brussels for help and do everything you can to make your ventilation and airtightness renovation a sustainable, comfortable and responsible investment.


Support in theFlemish Region

This information is provided for information purposes only. However, we cannot be held responsible in the event of error, changes to the system or misinformation.

Financial aid in Flanders: Audits, grants and solutions for your energy projects

Optimising the airtightness of your ventilation ducts and air ducts is an essential way of reducing your energy losses, improving indoor air quality and enhancing the comfort of your premises. In the Flemish Region, a number of financial schemes actively support companies in their efforts, enabling you to get a quick return on your investment.

Ecologiepremie+ (VLAIO)

If your improvements are part of an overall energy and environmental efficiency strategy, Ecologiepremie+ can cover a significant part of your expenses. This non-refundable grant, awarded by VLAIO, varies according to the type of work and the size of your business. Before starting the work, simply submit an online application and, once the project has been completed, benefit from concrete financial support.

  • Learn more

    • KMO-portefeuille (Portefeuille PME)

    Before investing, an audit or specialist advice can be invaluable in accurately assessing your needs and identifying the best technical solutions. The KMO-portefeuille helps you to finance these intellectual services, covering up to 30-40% of their cost. This approach ensures that you receive a high-quality diagnosis at a lower cost, so that you can plan your waterproofing work with peace of mind.

  • Learn more

    • Primes Énergie (Fluvius)

    The energy allowances offered by Fluvius support your concrete actions to improve the energy performance of your building, including the airtightness of air ducts. Before starting work, submit your application and, once the work has been completed and approved, benefit from direct financial support. The amount of the grant depends on the nature of the work and the energy savings achieved.

  • En savoir plus

    • Financing and Loans (PMV, Banking Partners)

    If you need additional finance, the Flemish Region also offers you a range of solutions via PMV and other banking partners. Loans, guarantees and co-financing enable you to complete your project budget under the best possible conditions. After analysing your application, these organisations can offer you a tailor-made financial package.

  • Learn more

    • In brief,
    Thanks to Ecologiepremie+, KMO-portefeuille, Fluvius premiums and PMV funding, the Flemish Region offers a complete ecosystem to support companies investing in the airtightness of their ventilation systems. By planning your project wisely, consulting the right partners and applying for the aid available, you can reduce your costs, optimise your energy efficiency and improve the air quality in your professional spaces.