AluNext is the latest hybrid system replacing the outdated Unity solutions. 100% recycled PVC is combined with aluminum, uniting the advantages of both materials. You get the flawless appearance of a premium aluminum window with its sharp corners and matte textures, but with the thermal physics of the best plastic profile.
This is an eco-friendly solution, fully recyclable, that meets the strictest requirements of modern architecture. AluNext is the window of the future for those building exclusive real estate in Spain.
Technical Specifications
A window that is indistinguishable from premium aluminum on the outside, while maintaining the warmth and comfort of plastic inside. A very strong system — designed for large panoramic windows that will not deform from heat.
System structural parameters:
Glazing and infill options:
Maximum construction dimensions:
Certified characteristics:
Documentation
A window that is indistinguishable from premium aluminum on the outside, while maintaining the warmth and comfort of plastic inside. A very strong system — designed for large panoramic windows that will not deform from heat.
For a standard 2-sash tilt-and-turn window (1200 × 1400 mm) with basic double-glazed unit.
Alternative solutions from other manufacturers
Side by side
How Kömmerling AluNext MD stacks up against the closest matches from other brands.
| Specification | Kömmerling AluNext MDThis profile | Schüco LivIng 82 | WDS 8S | Rehau Geneo |
|---|---|---|---|---|
| Brand | Kömmerling | Schüco | WDS | REHAU |
| Material | PVC | PVC | PVC | PVC |
| Profile depth | 80 mm | 82mm | 82mm | 86mm |
| Chambers | — | 7 chambers | 6 chambers | 6 chambers |
| Glass unit, max | up to 56 mm | up to 52mm | 44 mm / 52 mm | up to 53mm |
| Thermal (Uw) | ≤ 0.8 | 0.8 | 0.88 | 0.85 |
| Sound (Rw, dB) | ≈ 45 Rw(dB) | ≈47 Rw(dB) | ≈48 Rw(dB) | ≈50 Rw(dB) |
See all window profiles compared.
Open full comparisonLeave a Review
Find out what people are saying about it
No reviews yet. Be the first!
FAQs
AluNext is not just plastic with an overlay, but a structural hybrid. Aluminum and PVC are rigidly bonded during the profile manufacturing stage. This gives the system incredible strength and the aesthetics of a full aluminum window (straight 90° corners, matte textures) while retaining the warmth and tightness of the best plastic profile.
This is one of the main strengths of the system. Thanks to the rigidity of the aluminum component, AluNext allows manufacturing sashes up to 2.6 meters high. This makes the system an ideal replacement for "cold" aluminum in panoramic villa projects where huge light openings are required without heat loss.
The aluminum outer layer takes on all thermal loads. Unlike regular PVC, which can expand when heated, the hybrid structure of AluNext maintains dimensional stability even in dark colors (black, anthracite) at surface temperatures up to +80°C. The windows don't warp and always close perfectly.
Yes, AluNext was developed within the Circular Economy concept. All profile materials are easily separated and fully recyclable. Recycled PVC and aluminum are used in production, reducing your home's carbon footprint without compromising structural quality.
The main reason is the elimination of "thermal bridges" and condensation. AluNext offers the same premium aesthetics with sharp edges and RAL colors as aluminum, but its thermal insulation coefficient is 2-3 times better. This allows building homes with huge windows that meet the strictest energy efficiency standards.
The aluminum profile is painted using powder coating or anodizing. This provides virtually a lifetime guarantee on color. The coating doesn't fade, peel, or scratch, and is resistant to aggressive sea salt exposure, making AluNext an ideal property investment.
