Why choose Avenir Renovations?
Our window frame installation services in Brussels
Our company handles your entire project, whether it's for a like-for-like replacement, a complete renovation, or creating an opening in a facade.
Replacement of old windows
We replace your old joinery with more efficient models:
- PVC windows, wood, or aluminum,
- tilt-and-turn, sliding, or fixed frames,
- double or triple glazing as needed (Ug ≤ 1.1 W/m²K),
- careful installation without thermal bridges.
This service applies to both single-family homes and apartments or condominiums in Brussels.
Installation in new builds or extensions
As part of a major renovation or the addition of an annex, we carry out the installation of your custom frames, in coordination with other trades. Air tightness, integration with the vapor barrier, and PEB compliance are taken into account from the design stage.
Supply and advice on materials
We work with recognized Belgian and European manufacturers (Deceuninck, Schüco, Reynaers, Kömmerling...) to ensure:
- certified windows,
- increased longevity,
- good value for money.
Each solution is chosen based on your priorities: thermal insulation, acoustic insulation, design, maintenance, budget, RAL color, wood imitation...
The 5 steps of a window project with Avenir Rénovations
With Avenir Rénovations, window installation follows 5 steps: free visit, choice of materials, clear quote, careful installation by professionals, and complete follow-up after work.
Why replace your windows in Brussels with a professional?
Replacing your windows in Brussels with a pro ensures compliance with PEB standards, adherence to municipal regulations, and a real increase in your property's value, with assistance available.
In Brussels, to improve your PEB certificate or qualify for a grant, your windows must meet specific thresholds. An experienced craftsman ensures the right combination of glazing + frame + installation.
Some municipalities like Schaerbeek or Ixelles impose adherence to a facade style or a color palette. Our teams will assist you in the procedures if authorization is required.
Changing windows enhances the perceived value of a home and facilitates its resale. It is a profitable investment both in the short and long term, especially with regional aids.
How much does it cost to install frames in Brussels?
Indicative prices including VAT for supply + installation
The price depends on the material, type of opening, glazing, and the complexity of the installation. Here is an estimate of the prices practiced in Brussels:
- PVC double glazed window (120×120 cm): 450 to 700 €
- Aluminum window with thermal break: 700 to 1,000 €
- High-performance triple glazed frame: 850 to 1,200 €
- Sliding glass door in aluminum: 1,200 to 2,200 €
- Replacement of a frame in existing structure: 150 to 300 € labor per unit
What grants are available in the Brussels Region?
The Brussels-Capital Region offers a grant for the energy improvement of exterior joinery, depending on the type of glazing, the material, and your income.
- Up to 156 €/m² of replaced glazing surface (category R1)
- Grant capped at 70% of the billed amount for categories R1 and R2
- The glazing must have an Ug ≤ 1.1 W/m²K and the frame a Uw ≤ 1.5 W/m²K
- The installation must be carried out by an approved company
Why choose Avenir Rénovations for your windows in Brussels?
In Brussels, window replacement is not something to be taken lightly. In addition to technical constraints, one often has to deal with strict urban planning rules and high energy requirements. Avenir Rénovations provides you with:
- support from A to Z, from study to installation;
- qualified carpenters, insured, and trained in local constraints;
- personalized advice, to tailor your choices to orientation, usage, and regulations;
- strict compliance with PEB standards, Uw global ≤ 1.5 W/m²K to be eligible for grants;
- handling of administrative procedures, in case of permits or grant applications.
Our Brussels team is well acquainted with the realities of local buildings, the requirements of co-ownerships, and the assistance available at the regional level.
Concrete example of window replacement in Brussels
Mr. Delvalle, owner of an apartment on the second floor in Ixelles, contacted us to replace the 6 original single-glazed wooden windows in his home. The goal: to improve comfort in winter, reduce street noise, and benefit from regional aid.
We proposed the installation of PVC frames with high-performance double glazing (Uw = 1.3 W/m²K), white on the inside and wood imitation on the outside to comply with the aesthetic requirements of the listed façade.
- Total cost of the work: 5,100 € VAT included
- Surface area of glazing replaced: 14 m²
- Income category: R2 → Grant of 104 €/m²
- Amount of the grant: 1,456 €
- Net amount payable: 3,644 €
The work was completed in two days. Mr. Delvalle immediately felt an improvement in acoustic and thermal comfort and reduced his heating consumption by 18% in the following year.
What you need to know before changing your windows in Brussels
Do I need to apply for a permit to change my windows?
This depends on your municipality and the type of building. Generally, a like-for-like replacement does not require a permit. If you modify the appearance or size of a frame visible from the street, an urban planning declaration may be required.
Can I benefit from the 6% VAT?
Yes, if your home is over 10 years old, and the work is carried out by an approved company, you can take advantage of a reduced VAT rate of 6%.
Do I need to conduct a housing audit to benefit from the grant?
No, exterior carpentry work can benefit from grants without prior audit, provided that the Uw/Ug performance is certified.
What is the average duration of a construction site?
For a typical apartment with 5 to 8 windows, it takes 1 to 2 days maximum, depending on access conditions and the nature of the finishes.
Your new windows in Brussels with Avenir Rénovations: durable, efficient, elegant
Whether it’s about gaining comfort, reducing your bills, or improving the value of your property, changing windows is a strategic decision. Trust your project to experienced professionals close to you, who offer all the guarantees.
Request your free quote for window installation in Brussels now.
Agency Avenir
Rénovations
for Window frame installation in Brussels: improve the insulation, comfort, and value of your home
An expert to take charge of your renovation projects and guarantee deadlines, budgets and quality of all services.
