FAQ: windows, glazing and renovation in Brussels
Short, factual answers about prices, quotes, materials, glazing and how a project with Châssis Thermiques works.
Who is Châssis Thermiques?
Châssis Thermiques BV is a window company based in Forest (Brussels), specialising in the installation and renovation of PVC, aluminium and wooden windows, glazing, verandas, shutters and garage doors.
How much does it cost to replace a window?
The price depends on the dimensions, material, glazing, options and site constraints. A visit and measuring allow an accurate quote; we do not give flat prices without seeing the site.
How does the quote process work?
After your request we contact you and arrange a site visit. We take measurements, analyse the site, get supplier prices and send you a detailed quote.
Do you take the measurements?
Yes. Measurements are always taken on site during the visit. You do not need to know the dimensions.
PVC or aluminium: what is the difference?
PVC insulates well and needs little maintenance, usually at a lower budget. Aluminium allows slimmer frames, large openings and a contemporary look. The choice depends on the building.
Do you work with Schüco?
Yes. For PVC windows, Châssis Thermiques installs Schüco profiles.
Do you work with Reynaers Aluminium?
Yes. For aluminium windows and verandas we install Reynaers Aluminium systems.
Which woods do you offer?
Meranti and afzelia, and other exotic woods depending on the project.
Is triple glazing always necessary?
No. Triple glazing insulates better but is heavier and more expensive. Good double glazing is enough in many cases; it depends on orientation, insulation target and frame.
Which glazing reduces noise?
Acoustic glazing, with panes of different thicknesses and/or acoustic laminated glass, reduces outside noise. Airtight installation is also essential.
What is laminated safety glass?
Two panes bonded by an interlayer. On impact the glass cracks but stays in place, slowing break-ins and limiting injuries.
Can old windows be replaced without a full renovation?
Yes. Windows are often replaced without renovating the whole house; new frames are fitted to the existing openings.
Do you repair windows?
Yes: adjustments, replacement of parts or glass, and after-sales service, depending on the problem.
Do you work on new builds?
Yes, on new builds as well as renovations.
Do you work throughout Belgium?
Mainly in Brussels, Walloon Brabant and Flemish Brabant, and elsewhere in Belgium depending on the project.
Which Brussels municipalities do you cover?
All 19 municipalities, including Forest, Uccle, Anderlecht, Ixelles, Etterbeek, Schaerbeek, Jette, Molenbeek, Berchem-Sainte-Agathe, Auderghem and Woluwe, plus nearby areas such as Dilbeek and Zellik.
What are the lead times?
Lead times depend on the product, supplier and site. They are given with the quote.
Is the owner present on site?
Yes. The owner of Châssis Thermiques is personally present and involved on site, with over 30 years’ experience.
How do I maintain PVC or aluminium windows?
Regular cleaning with soapy water and a check of the hardware is usually enough. Wood also needs periodic maintenance of its finish.
Do you build verandas?
Yes, made-to-measure aluminium verandas.
Can garage doors be motorised?
Yes, sectional doors motorised on request, with remote control depending on the equipment.
Let’s talk about your project.
Tell us what you need: we will call you back, then arrange a visit to see the site and take measurements.