Brussels
6 uPVC windows + door
“I had 6 uPVC windows and a front door installed. The result is excellent, and the installation was done in a single day, just as André promised. No more draughts at all!”
Mark L.
Homeowner
Made-to-measure uPVC, aluminium and wood windows with high thermal performance, sold without middlemen and installed under a 10-year guarantee. And our team speaks English, from the first call to the final check.
4.8/5 · 328 verified reviews
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In Brussels, a single street can line up a 19th-century townhouse (maison de maître), a small interwar block of flats and a new apartment building. The 19 municipalities of the Brussels-Capital Region are densely built: most homes are terraced, and street-side façades often face heavy traffic. So new windows here have three jobs at once: keep the heat in, keep the noise out and respect a façade everyone sees from the pavement. And if you’d rather do all this in English, we’ll handle your project in English from the first call to installation day.
In a city where people live close to boulevards, trams and main roads, glazing is first and foremost a question of acoustics. Well-chosen double glazing, or triple glazing on the most exposed façades, makes a real difference to a bedroom on the street side. Large south-facing glazed areas also deserve some thought, to limit overheating in summer.
Before changing the look of a façade that can be seen from the street, check with your commune’s planning department (urbanisme): requirements vary from building to building and area to area, particularly for protected properties. We can help you gather the technical information they ask for, and explain the Belgian steps in plain English.
Our head office is just on the other side of the Sonian Forest, with direct access to the E411 and the Ring. The south-eastern municipalities, such as Auderghem and Watermael-Boitsfort, are the closest, but we cover the whole Region, from Anderlecht to Evere and from Jette to Forest. A technician comes to your home for a measuring visit and looks at the practical constraints (parking, access, floor level), then you receive a detailed quote that we are happy to walk you through line by line.
For grants and the EPB certificate (PEB), see the section below: we provide the technical specifications of your new windows, but can’t promise any amount. For details specific to your area, find your municipality in the list below.
No middleman margins: you deal directly with the team that designs, adjusts and oversees the installation of your windows and doors, right down to the finishing touches.
Save on your renovation by cutting out the middlemen. A transparent quote, line by line.
No reseller margin
Belgian building rules, listed façades, co-ownership approvals: we explain everything clearly in English, by phone, by email or on site.
English-speaking advisors
High thermal-performance windows, supplied with the technical data you need for your EPB (PEB) energy certificate.
Technical file supplied
HR++ double or triple glazing: instant comfort and lower heating bills from the very first winter.
Double or triple glazing
We look at your needs and point you honestly to the right windows for your budget: uPVC, aluminium or wood.
A careful, free measuring visit at your home, so there are no surprises on installation day.
Respect for your home, protected floors, airtight sealing and a clean site when we leave.
We handle everything, from your first quote to after-sales service.
Describe your project online and receive your priced offer within 24 hours, with no obligation.
A technician comes to your home to take exact measurements, free of charge.
Your windows are manufactured to the exact dimensions taken at your home.
Our qualified fitters install everything precisely and leave your home clean.
We remain available after installation for any question, in English or in French.
Our advisors will guide you by phone, free of charge, in English.
See how our clients in Brussels, Namur and Liège added value to their homes while cutting their energy use.
Brussels
6 uPVC windows + door
“I had 6 uPVC windows and a front door installed. The result is excellent, and the installation was done in a single day, just as André promised. No more draughts at all!”
Mark L.
Homeowner
Namur
Aluminium windows
“A very good company, responsive and professional. The aluminium windows are beautiful and the difference in thermal insulation is impressive.”
Virginie L.
Homeowner
Liège
Full renovation
“I recommend Renov'Châssis to all my clients. The quality of the products and the reliability of the team are faultless. A partner you can trust.”
Kenza B.
Professional client
Brussels' Renolution grants are currently suspended: no application can be submitted for final invoices dated 2025 or 2026, and the Region has not yet decided on a new form of support. Updates are published on renolution.brussels.
The Ecoreno loan can pre-finance renovation work, and Homegrade offers free advice to Brussels residents. Efficient windows generally improve the home's EPB (PEB) certificate, required when you sell or let a property: we provide you with their technical specifications.
Information checked on 17 October 2026.
Windows are often part of the façade, which belongs to the co-ownership. If you own the flat, check the building's co-ownership rules and speak to the building manager (syndic) before ordering: a common colour or glazing-bar layout is sometimes required. If you rent, you will first need your landlord's written agreement. We can provide a technical description to present to the landlord or at the general meeting.
Sound insulation depends mainly on the make-up of the glazing and on how airtight the installation is. During the visit, we look at how exposed each room is to noise and suggest suitable double or triple glazing.
Yes, provided you choose a slim frame and a suitable colour, and reproduce the original divisions (top lights, glazing bars). Aluminium also allows very slim sections. We compare both options with you on site.
Yes, all 19 municipalities of the Region. Find yours in the list below this text for a more detailed page.
Free quote within 24 hours, then a technician comes to measure up at your home, free of charge. We explain everything in English.
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