

Our 3 designlines
Get a first glimpse of how our three design lines — Avantgarde, Modern, and New Classic — differ. Details on materials, finishes, and opening options can be found on the product pages.
AVANTGARDE – minimalist, pioneering
MODERN – sleek, contemporary
NEW CLASSIC – charming, a fresh take on classic design

Avantgarde

Modern

New Classic

Avantgarde

Modern

New Classic
Design line Avantgarde
MATERIAL: Aluminium, interior optionally with applications of glass or solid wood
DESIGN: Maximally symmetrical on all 4 sides and all elements
FRAME: Extremely slim - 5 cm frame visible width on all 4 sides and all elements
Design line Modern
MATERIAL: Solid wood or recycled plastic with protective aluminium shell
DESIGN: Flush surface and glass on the outside and inside (exception Topas on the inside)
FRAME: Especially slim, 12% slimmer than comparable windows
SMART MIX: Cost-effective combination of wood/aluminium and PVC/aluminium windows
All-glass systems & sliding doors
What exactly is an all-glass system? Imagine a wall that suddenly becomes almost invisible yet keeps your space warm, cozy, and inviting—that’s how Josko's all-glass systems transform your living dreams into reality.
Different elements, such as windows, patio doors, lift-and-slide doors, and fixed glazing, seamlessly combine to create a unified design, giving you even more light and openness. Our all-glass systems, available in three materials, open up your life and expand your living horizons. Large glass surfaces invite nature right into your living space.
This means Smart Mix for
windows and sliding doors
- One-stop service: With just one contact person, you will receive optimal technical solutions without additional cost. Because everything comes from a single source at Josko, sun shade and insect screen, window sills and much more are also tailored to the windows.
- Combine budget-optimised: Wood/Alu and PVC/aluminium windows combined with the same exterior appearance - this enables you to find budget-saving solutions with full design advantages.
- Uniform colour design: Match the colours and characteristics of the wooden surfaces of windows with those of entrance doors, interior doors and natural wood floors. Outside window frames, window sills as well as sun shades and insect screens are available in the same colour shade. If you wish, you can create a harmonious tone-on-tone living space design.
- Elements from the same mould: Depending on the location and taste, you can choose from windows, patio doors, fixed units and sliding doors within a product line. All elements have the same design signature and shape.
- Everything fits together: Even within a style, you will recognise the same design signature across all product groups. Regardless of whether it is windows, entrance and interior doors, the uniform optical characteristics enable you to create a uniform interior design.
