The Lammi window factory was established as early as 1969, when the company was working under the name Lahden Ikkuna Oy. Metsäliiton Teollisuus owned the factory during 1980-1998 and it centralized the production that has begun in Vääksy in 1950, to Lammi.

The current company name (Lammin Ikkuna Oy) and ownership were established in 1998 through an MBO.

In 2007, the production resources were significantly increased as Lammin sister company Virepuu Oy was established at Kangasniemi. The facilities of a traditional door manufacturer were obtained while the total size of the premises doubled to 15000 square meters.

One of the most significant strengths of a big forest industry company is the versatile knowhow and skills to turn raw timber into modern, refined joinery products. In the upgrading chain of Lammin, the historical heritage is clearly visible in the profiles of blank manufacturing plant. They can be efficiently and conveniently be turned into tailor-made, high-quality windows and doors.



Today, Lammin Ikkuna Oy is a professional, service-minded, comprehensive supplier for building and renovation projects of all sizes. Our expertise, personal way of working and uncontested commitment to handle every window and door delivery the best possible way will be the foundation for our success also in the future.