If you're renovating in Brussels, you've certainly come across the word Renolution. Behind that name sits the reform that, a few years ago, unified the former energy grants and renovation grants of the Brussels-Capital Region. One scheme, one channel, one application. On paper, it's simpler. In practice, knowing what you can claim means understanding a precise logic: the grant calculated item by item and modulated by your income.

Renolution, in one sentence

The Renolution grant is the single support scheme run by Brussels Environment for renovating Brussels dwellings. It replaces the pile of aids that existed before: instead of juggling an energy grant and a renovation grant, you file a single application covering insulation, roofing, heating, ventilation, window frames or even sanitary conditions.

The principle stayed the same in 2026, but the scales and certain conditions are adjusted regularly. That's why you never think in terms of a fixed amount: you think in terms of an order of magnitude, modulated by income and the type of works.

Key point: Renolution does not pay a percentage of your total bill. It assigns an amount per works item — so much for roof insulation, so much for ventilation, so much for the boiler — and each of those amounts rises as your income falls.

The per-item logic, and why it changes everything

This is the core mechanism of Renolution. Each type of works gives rise to a specific grant, with its own scale and its own cap. You don't receive "a grant": you add up several grants, one per item carried out.

Insulation is the best example. The order of magnitude sits around €60 per m² insulated, capped at roughly €2,700 per dwelling, with that amount modulated by your income and the type of insulation. For a roof of decent surface, this item alone can represent the bulk of the aid. Alongside it, other items add up:

  • The Sibelga energy grant, from the operator of the Brussels distribution network, tops up Renolution on certain energy-efficiency works — in the region of €450 depending on the work.
  • The ventilation bonus for installing a balanced (heat-recovery) mechanical ventilation system runs at around €500, an item that's often forgotten even though it genuinely improves comfort and the EPC.
  • Heating (a high-efficiency boiler, a heat pump) and window frames each have their own scale.

All these amounts are 2026 orders of magnitude. The official, up-to-date scale is found on renolution.brussels for the regional part and on sibelga.be for the energy grant.

Income-based modulation

This is the second key to Renolution. For the same works item, two households don't receive the same amount. The scheme sorts beneficiaries into income brackets, and the more modest the household's income, the higher the intervention rate. A low-income household can therefore see its insulation grant raised significantly compared with a more comfortable household.

The practical consequence: it's impossible to announce "your grant will be €X" without knowing both the exact works and the household's income bracket. A serious estimate cross-references the two. That's exactly what a Qote report does: it prices your works on the ABEX index, then lists the Renolution, Sibelga and ventilation grants that apply to your profile, to arrive at the real amount left to finance.

Stacking: Renolution, Sibelga, ventilation and 6% VAT

Good news for budgets: these aids don't rule each other out. In most cases, the Renolution grant stacks with the Sibelga energy grant and with the ventilation bonus, each one covering distinct items. On top of that comes an often-underestimated tax lever: the reduced 6% VAT instead of 21% on renovation works to a dwelling over ten years old, a benefit handled at federal level (finances.belgium.be).

Stacking rules vary from one item to the next, however, and some combinations are capped. That's one of the reasons a grant is never presented as a vested right: it depends on the file, on the compliance of the works and on the timing of the application.

Indicative 2026 figures, verified at the official source; every Qote report lists the grants that apply to your project at the time of generation.

The deadline that changes the game: the F/G ban in 2033

Renolution isn't just a carrot; it's also the counterpart to a tightening timetable. In Brussels, renting out the most energy-hungry dwellings — rated F or G on the EPC certificate — will be banned by 2033. For a landlord, that turns energy renovation from a "when I get round to it" project into a dated deadline.

Claiming the Renolution grant today therefore kills two birds with one stone: you cut the cost of the works and you bring the property into compliance before the ban bites. The earlier you start, the more you can spread the items and the more grants you capture across several scale years.

How to know, concretely, what you're entitled to

The steps come down to three: list precisely the works you're considering, place your household in the income brackets, then test the whole against the scales in force. Qote's grants guide brings together the orders of magnitude region by region; the estimator goes one step further by pricing your items and directly matching the corresponding grants. In twenty minutes, remotely, you get a gross amount, the grants deducted and the amount left to finance.

Frequently asked questions

What is the Renolution grant in 2026?

It's the single grant scheme for the Brussels-Capital Region, run by Brussels Environment, which merges the former energy and renovation grants into one channel. The amount is calculated item by item and modulated by household income. Orders of magnitude only, to be checked on renolution.brussels.

How much is the insulation grant worth?

Around €60 per m² insulated, capped at roughly €2,700 per dwelling, modulated by income and the type of works. Indicative 2026 figure; the exact scale is published on renolution.brussels.

Can I combine Renolution with other aids?

Yes, in most cases, with the Sibelga energy grant (~€450), the balanced ventilation bonus (~€500) and the reduced 6% VAT on dwellings over ten years old. Stacking rules vary by item and should be checked on renolution.brussels and sibelga.be.

Your Renolution grants, priced and deducted

Answer a few questions, the engine calibrates your items on the ABEX index, matches the applicable Renolution grants, an expert reviews. Twenty minutes, no site visit, grants deducted.

Start my estimate — €29 See a sample report

Read next

Brussels homeowners: the grants you can still claim in 2026 → From EPC E to B: the four works that make the real difference → ABEX index: what an indexed estimate really changes for your renovation →