For an everyday-sized window, PVC stays the smartest choice. Multi-chamber profiles steel-reinforced, excellent insulation out of the box, next-to-no maintenance and a controlled budget: it’s the window fitted in most Belgian renovations. Tilt-and-turn, white or foil-coated, with no compromise on performance.
The benchmarks that matter for a serious PVC window, fitted by our teams. Concrete figures on the most common format: the living-room or bedroom window.
PVC insulates naturally, with no thermal break to add. The profile’s air chambers trap the heat: paired with double or triple glazing, a PVC window reaches the level required for grants, on a contained budget.
The secret of PVC: a hollow profile split into several air chambers that slow heat exchange. The more chambers and the wider the frame, the better the window insulates.
PVC alone would flex: each section carries a galvanised steel reinforcement that stiffens the window, holds the hardware and ensures the tilt-and-turn stays true for decades.
No paint, no treatment. A wash with soapy water once or twice a year is enough. PVC doesn’t rot, flake or need any touch-ups, unlike wood.
White as standard, or foil coatings imitating oak, anthracite grey or black, inside and out. The foil is dyed through the film: it doesn’t flake and holds up against UV.
A quality PVC window lasts several decades. At end of life, PVC is recycled in a loop (ground down then reintegrated into the core of new profiles) — a real environmental plus.
* Indicative values for standard-range 5–6 chamber profiles with steel reinforcement. Exact performance depends on the profile, glazing and dimensions — confirmed at the survey.
No material is perfect for every opening. Here, honestly, is where the PVC window stands out and where it’s better to look at aluminium.
It comes into its own whenever you have an everyday-sized opening and a set budget. A few cases where it’s the right choice:
Bedrooms, living room, kitchen: replacing ageing windows with high-performance PVC is the renovation move with the best insulation/price ratio.
For a living-room window in a classic format, the PVC tilt-and-turn offers gentle ventilation and a wide opening, without the needless extra cost of aluminium.
When all the windows of a home need replacing, PVC lets you handle everything on a single budget without skimping on performance.
For a very large opening or very slim lines, look instead at the aluminium window. And for the warmth of wood inside with aluminium outside, see wood-aluminium.
The client put up with single-glazed wood windows, cold and hard to operate. We fitted six tilt-and-turn PVC windows, a 6-chamber steel-reinforced profile and high-performance double glazing. The result: draughts gone, a lighter heating bill and a budget held thanks to PVC.
5.0/5 · 5verified reviews
« Nous avons fait appel à la société Wendows pour le renouvellement de nos châssis et nous sommes vraiment ravis du résultat ! Les travaux ont été réalisés dans les délais annoncés et la finition est impeccable. De plus, M. Aprile qui s'est occupé du devis, s'est toujours montré disponible pour répondre à toutes nos questions. Nous vous recommandons donc de faire appel à eux pour vos travaux ! »
« Nous avons fait appel à Wendows pour le remplacement de nos châssis et nous sommes très satisfait de notre choix. Qualité et suivi de chantier au top ! »
« Ik heb via WEndows een raam aangekocht van 2m x 2m. Mijn algemene ervaring is goed. Zeer goeie communicatie, altijs zeer snelle reactie bij een vraag of opmerking. Het installatie team werkte ook zeer efficient. Tevreden van het eindresultaat! Bedankt WEndows »
PVC wins on price and out-of-the-box insulation for an everyday window. Compare it point by point to aluminium and wood, then open the range that interests you.
| Critère | PVC windowVous êtes ici | Aluminium windowVoir la gamme → | Wood windowVoir la gamme → |
|---|---|---|---|
| Indicative price | The gentlest | €€€ — higher | €€€ — by species |
| Thermal insulation | Excellent, natural | Very good (thermal break) | Excellent |
| Maintenance | Next to none | Next to none | Stain to be redone |
| Profile slimness | Standard | The slimmest | Intermediate |
| Large bays | Limited | Ideal | Good |
| Aesthetics / look | Understated, 40+ shades | Contemporary, clean | Warmth of wood |
| Best for | Renovation, set budget | Large bays, design style | Authentic charm |
The full range of PVC frames: profiles, performance, opening types and grants, beyond the window alone.
Discover PVC →White or foil coatings (oak, anthracite, black), inside and out. See the look and the colour options.
See the colours →Slimmer profiles and large-opening strength. The right choice when the window goes beyond the everyday size.
Compare with aluminium →Glazing accounts for ~70% of performance, whatever the frame. Understand Ug values to equip your windows well.
Choose your glazing →Fitted price ranges by dimensions, glazing and finish. And the share covered by grants.
See PVC prices →An overview of our window frames & joinery in Belgium: materials, glazing, fitting and grants on one page.
Back to the frame guide →The price depends on dimensions, opening type, glazing and finish. PVC stays the most affordable in everyday formats. Here are benchmarks for a fitted PVC window.
See the detailed PVC price grid →* Indicative ranges per fitted PVC window, excluding specific configurations. Itemised estimate provided with your free quote.
Because it offers the best insulation/price ratio on everyday-sized windows. The multi-chamber profile insulates out of the box, with no thermal break to add, and the material costs far less than aluminium. For the same budget, you fit more openings in PVC while still meeting grant requirements.
Yes: each section carries a galvanised steel reinforcement that stiffens the window and holds the hardware. That’s what keeps a tilt-and-turn true and operable for decades. A quality PVC window commonly lasts over 35 years.
Yes. Beyond standard white, foil coatings imitate oak, anthracite grey or black, inside and out. The film is dyed through: it doesn’t flake and resists UV. More than forty shades are available.
The PVC profile is hollow and split into several air chambers (5 or 6 on the good ranges) that slow heat exchange. The more chambers and the wider the frame, the better the window insulates. It’s the heart of PVC’s performance.
For an everyday-sized window, it’s perfect. Beyond a certain area, however, aluminium holds large sashes better without thickening. For a large bay or an oversized slider, we steer you towards the aluminium window, better suited to it.
Grants depend on the performance achieved (Uw value), not the material. A high-performance PVC window qualifies, depending on your region and income, for a renovation grant and 6% VAT for homes over ten years old. We handle the paperwork for you.
Free on-site survey, grants calculated, a single point of contact. Describe your project in under a minute.