Customer asks:
Our future home is currently in the design phase. What kind of windows do you recommend?
Aru Grupp replies:
If the building being designed is modern in style, we definitely recommend using Aru SlimLine inward-opening wood-aluminum windows.
This is a new generation window system that combines contemporary design, ease of use, and high energy efficiency.

Key features of Aru SlimLine windows
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Slimmer sash and frame sections
SlimLine window profiles are significantly slimmer than those currently available on the market, giving the window a modern and elegant appearance.
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Flat and minimalist design
Both the aluminum cover profiles visible on the outside and the wooden construction profiles visible on the inside have been brought to a single plane. The result is a clean design with few lines and planes, which fits perfectly into both contemporary exterior architecture and modern interiors.
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Concealed hinges as standard
Concealed hinges support the minimalist interior design and add visual clarity and elegance to the window.
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Larger glass surface – more light and better U-value.
Slim frame and sash profiles allow for a larger glass surface than usual. This ensures better heat retention (U-value) and creates more light in the room.
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Innovative sealing solution
The updated sealing concept improves the wind and water resistance of the window, ensuring durability even in extreme weather conditions.
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Silicone-free glazing
No silicone is used in Aru SlimLine windows. This prevents discoloration and mold spots from forming on the edges of the glass over time.
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Glazing of non-opening window sections with a strip-free solution
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Strong and stable construction
The glass package and the wooden part of the window frame are connected with a strong adhesive joint, which ensures high structural rigidity and a long service life.
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Aluminum profile for expanded installation options
The outer aluminum cover of the window frame consists of two separate profile rings, which allow for a variety of installation methods.
If desired, the outer aluminum profile can be omitted when ordering (this makes the product more affordable), which simplifies the weatherproofing of the window on the outside of the building and the correct finishing of the window sills. -
Convenient insect screen solutions
If desired, practical and easy-to-use insect screens can be added to the windows.
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Wide range of colors and finishes
Aru SlimLine aluminum cladding is available in a wide range of RAL colors and up to three different gloss levels or textured colors.
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Wide range of profiles and glass packages
Aru SlimLine windows are available with 78 mm and 92 mm wood profiles.
Wooden profiles manufactured using innovative technology allow the use of glass packages of different thicknesses and maintain the window’s good U-value even when laminated glass is used.
By combining the different physical properties of glass packages, the following window values can be influenced:
– thermal insulation
– sun protection
– frost protection for the outer glass
– security
– sound insulation -
Competitive price
Although Aru SlimLine is a new generation window system, its price is not significantly higher than that of previous generation wood-aluminum windows.
Summary: why choose Aru SlimLine windows?
Aru SlimLine windows combine all the key values that are important in modern home design:
• modern and aesthetic design
• slim profiles
• maximum light opening
• excellent energy efficiency and weather resistance
• high-quality and flexible installation solution
• convenient and long-lasting use
• reasonable price and reliable delivery time
If your home is in the design phase and you are looking for modern, durable, comfortable to use, energy-efficient windows at a reasonable price, Aru SlimLine windows are one of the best choices.
Ask for an offer
Our experienced team is ready to bring your vision to life, whether it’s custom windows, doors, stairs or a house. We offer a professional approach to every project, ensuring a result that meets your exact needs.
To receive a quote, fill out the form and we will contact you!
