Bovenvenster  Fabrikanten, distributeurs en leveranciers

WIŚNIOWSKI® has more than 20 years of experience in the construction industry. Our technology and production centre ensures quality and top standards, while constant improvements in skills, products, and technological lines all add up to making top quality products.

OKNOSTYL provides customers with top quality wooden, door and
fenestration joinery since 1997. What is so unique about us is our
16 years of experience, high quality products, precision processes,
and extraordinarily rich and varied offer adaptable to the individual
needs of our customers. Top quality products, their long-standing
elegance and functionality, durability and comfort - these are the
features on which we base the business.
The OKNOSTYL production plant is located in Krzeszowice near
Krakow. Well-educated and experienced personnel cares about
the satisfaction of our clients. Members of our staff continuously
increase their qualifications. Owing to their professionalism and
skills, we are able to face up to almost every challenge involved in
window and door production. We use only the highest quality
materials from reputable companies and strictly keep to the
requirements of norms and standards applicable for the systems
used by us.

We the Astas Aluminum which was founded in 1974 is one of the leading companies in the aluminum industry.
Our factory is one of the few manufacturers in the large area which has been certified by Qualanod, Qualicoat (+ seaside), ISO 9001, ISO 14001, ISO 18001, ISO 27001 GOST R, CE 2195, TSE 12020, TSE 4922, TSE 755-1, TSE 755- 3, TSE 755-8, and TSE 755-9.
Please do not hesitate to contact us, we are speaking German, English and Arabic.

Crystal Company was founded in 2004. In the first stage of developement the company's activity was associated with distribution of external steel doors and wooden doors. Activities in the field of joinery the Company started in year 2007 launched won production of PVC windows and hanceforth have consistenly developing the machinery park to offer Clients a wide range of modern, functional and aesthetic PVC windows.
Crystal Company is a manufacturer and distributor of:

• external steel doors,
• internal doors made of pine wood,
• PVC windows,
• and sectional garage doors.

We are selling our products under the brand name Splendoor. In offer you will find a modern, functional and aesthetic solutions improving safety and comfort of living. All the offered products are designed to restrict heat losses allowing you take benefits of the lower heating costs.
We are flexible and reliable in cooperation with our Business Partners, and satisfying the needs of our clients is for us the highest priority.

Koduaken is an Estonian window and door manufacturer and reseller, specializing in high-quality PVC (plastic) and aluminium solutions. With over 25 years of experience, we have perfected our craft to deliver durable, energy-efficient, and modern window and door systems. Our services cover the entire process — from manufacturing and reselling to professional installation and comprehensive support.
We proudly serve customers across Estonia, Finland, and Sweden, offering reliable products tailored to both residential and commercial needs.