About us

UAB “Saulės Langai” further continues the activities of company “Prienų Langai”. This company manufacturing plastic windows and doors starter their activities in 2000. The title “Saulės Langai” was chosen in 2012 to, according to the latest marketing recommendation, avoid identification with a specific location. The noun “saulė” in the title refers to a guarantee for light, warmth, and longevity.

In 2016, we created and legitimized the new brand “Sun Windows”, which aims to make the company known in international markets.


The company engages in manufacture of windows, showcases, and doors. They sell aluminum products, garage doors, steel doors, roller blinds. The company employs friendly personnel with 7 to 12 years of experience. Good relationship with clients and suppliers is a key factor allowing UAB “Saulės Langai” to ensure high quality complying with the latest requirements for window technologies.

Plastic windows are made from lead-free German KBE profiles. Plastic profiles are supplied by the German company “Profine GmbH”, which belongs to “International Profile Group”. This concern is one of the leading manufactures supplying profiles for plastic windows and doors. A KBE profile is equipped with 70mm, 88mm, and latest 76mm systems.

Bindings for windows are supplied by the German company “Gretsch-Unitas GmbH”. This manufacturer from German has more than 100 years of experience in manufacture of bindings and fittings.

Double-glazed units are supplied by the pioneer in manufacturing of double-glazed units in Lithuania, i.e. UAB “Glass lt Gaminiai”. For manufacture, the company uses the “Saint-Gobain” glass.

By describing our suppliers, we seek to note that our company prefers suppliers of quality materials.

Production capacity of UAB “Saulės langai” equals to 3,000-3,500 sq.m/month.

Our clients: Police Department of Lithuania, Palanga Rehabilitation Hospital, Prienai District Municipality, Vilkaviškis Hospital, Vilnius University Hospital, Birštonas Sanatorium “Versmė”, Kaunas District Municipality, Vilnius Central Post Office, private cottages in Kaunas, Vilnius, Marijampolė, Alytus, Druskininkai as well as private households in Lithuania, England, German, Norway, and Sweden.

UAB “Saulės langai” is a member of the Kaunas Chamber of Commerce, Industry and Crafts.