Material · Aluminium
Made-to-measure aluminium windows.
Slim, elegant and durable
The material for slim frames: elegant, warp-free and durable. Our thermally broken systems come from Aliplast and Ponzio.

Black aluminium windows on a renovated façade in Brussels
- Uw 0.74 – 0.93 W/m²K with triple glazing
- Thermal break
- 65 – 78 mm profile
- Will not warp
Strengths
Why choose aluminium?
Four reasons to choose aluminium.
Slim profiles
Slim, elegant profiles that open up the view.
Will not warp
Aluminium resists warping, corrosion and bending.
Good insulation
Insulating thermal-break strips; with triple glazing, Uw goes down to 0.74 W/m²K depending on the system.
Durable and recyclable
The longest-lasting material, with very little upkeep — and it is 100% recyclable.
Specifications
Technical specifications
- Profile
- 65 to 78 mm frame depending on the system
- Chambers
- 3
- Thermal break
- Insulating strips (32 to 42 mm on Ponzio)
- Uw (window)
- 0.74 to 0.93 W/m²K with triple glazing (Ponzio, Ug 0.5)
- Glazing
- Double or triple, up to 51 – 69 mm depending on the system
- Air permeability
- Class 4
- Systems
- Aliplast, Ponzio
Brands
Our aluminium manufacturers
Belgium · since 1984Aluminium window and door systems from the Corialis group. The brand was founded in 1984 in Lokeren, Belgium.
Manufacturer's websiteNow PROCURAL
Thermally broken aluminium systems, sold since 2024 under the PROCURAL name within Germany's Laumann Group. The PE 78N combines a 78 mm frame with a three-chamber profile.
Manufacturer's website
Frequently asked
Frequently asked
Does aluminium insulate well?
Yes: our Aliplast and Ponzio systems are thermally broken — insulating strips separate the outer aluminium from the inner aluminium. With triple glazing, Uw goes down to 0.74 W/m²K depending on the system.
What upkeep does an aluminium window need?
Very little: a rinse with clean water now and then is enough.
Can an aluminium window be repaired?
It is harder than with PVC: if it is damaged, it is best to call in a professional.
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