uPVC or aluminium window frames?
Choose uPVC if you want good insulation at the lowest price: a uPVC window frame costs from €650 per window frame incl. installation and never needs painting. Choose aluminium if you want slim profiles, lots of glass or a sleek, modern façade; it costs more than uPVC.
For insulation, the glass matters more than the frame material. We fit both with HR++ or triple glazing, installed by our own team.
uPVC and aluminium side by side
| Topic | uPVC | Aluminium |
|---|---|---|
| Insulation | Good to very good. Our profiles have 5 or 6 chambers that keep heat in. | Good, thanks to a thermal break in the profile. For passive houses there is the certified MB-104 Passive. |
| Price | Most affordable: from €650 per window frame incl. installation. | More expensive than uPVC. You receive a tailored price after measuring. |
| Maintenance | Clean twice a year and lubricate hinges and locks once a year. Never paint. | Wipe with a damp cloth now and then. The powder coating is colourfast, no painting needed. |
| Look | Slightly wider profiles. Also available with a woodgrain finish and glazing bars for a classic façade. | Slim and sleek, in almost any RAL colour, such as anthracite (RAL 7016) or black (RAL 9005). |
| Large openings | Possible, including sliding and lift-slide doors. The profile is wider than aluminium. | Strong material with slim profiles, which makes it the natural choice for large glass areas and wide sliding doors. |
| Online price estimate | Yes, in our price calculator. | No, only through a quote after measuring. |
When to choose uPVC
- You are replacing every window frame in a terraced or semi-detached house and want the best insulation for your budget.
- You live in an older home and want to keep its character: woodgrain uPVC looks like wood but never needs painting.
- You want to work out an estimate yourself before anyone visits.
When to choose aluminium
- You want lots of glass and slim profiles, for example in an extension with a wide sliding door.
- You want a sleek, modern façade in a dark colour such as anthracite or black.
- You are after a steel, industrial look: you get it in aluminium with the MB-Ferroline profile.
FAQ: uPVC or aluminium
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