About Us
Klas1 – The Most Beautiful Window Product on the Market from Kuusamo
Klas1 began its operations in Kuusamo in 1994. Since then, we have operated in our hometown of Koillismaa, where our resources include long-standing professionals dedicated to their work and slow-grown northern pine.
A high-quality window product is created from premium, selected wood by experienced, keen-eyed professionals. Our small company strongly embodies the traditional carpentry expertise of staff proud of their work.
Pine grown in the harsh northern conditions is particularly dense-grained and thus endures for the entire lifespan of the building. Knot-free, resin-spot-free Finnish pine is selected as the raw material for windows and doors. In addition to pine, we also manufacture windows from finger-joint-free white oak. The highest quality timber on the market is our absolute strength.
We inspect the quality of the wood for the first time when the timber used for windows arrives at our factory. The raw material we use is selected, and its moisture content is measured, as there must be no knots or cracks on the visible surfaces of the wood. After this, the flawlessness of the wood surfaces is checked again during the assembly phase of the sashes and frames.
Flawless wood material is of paramount importance for achieving a furniture-grade window product. With the surface treatment chosen by the customer, the windows are integrated into the architecture. As surface treatment options, we offer either a stylish painted finish or, alternatively, a demanding translucent finish that highlights the quality of the wood we use. The quality of our surface treatment is ensured in the paint shop, during the glazing phase, and for the final time in the packing department before the finished window is sealed for shipment to the customer. Our quality control covers the entire journey of the product, from the arrival of wood blanks to the finished packages shipped to our customers.
For us at Klas1, it is most important that we can be proud of the products we manufacture. Our product is high-quality and durable in both design and structure.
Klas1 Window
- Domestic
- Manufactured in Kuusamo
- The wood we use is Finnish finger-joint-free pine
- Window glass and aluminum parts are manufactured in Finland
- Always made to order, individually and with millimeter precision
Klas1's turnover is approximately 6.7 million euros, and the company employs 22 people. We are accustomed to working with designers and architects on demanding construction projects.
Klas1 is part of Pihla Group Oy
Klas1 is part of Pihla Group Oy. Pihla Group Oy is the largest player in the Finnish window and door market, manufacturing windows and doors under the Pihla, PihlaPRO, Tiivi, Profin, Klas1, Sydänpuu, Metallityö Välimäki, and Puuseppien brands, as well as ventilation solutions under the Finluft brand and blind and sun protection solutions under the Artic brand. Production facilities are located in Ruovesi, Kannus, Haapajärvi, Pudasjärvi, Kuusamo, Joutsa, Nokia, Hyvinkää, Ylöjärvi, and Joensuu. Pihla Group employs over 800 people in Finland.
www.pihlagroup.fi and LinkedIn
Since 2005 Pihla Group has been part of Inwido AB, Europe's largest window and door manufacturer
Inwido's business concept is to develop and sell the market's best customized window and door solutions. Focusing on consumer-driven markets, Inwido creates long-term sustainable growth both organically and through acquisitions.
Inwido consists of 35 business units and employs approximately 4,700 people in 12 different countries. In 2024, Inwido's turnover was 773 million euros, and its operating profit was 10.8 percent. Inwido has been listed on the Stockholm Stock Exchange since 2014.