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Windows

Windows for the space of your life

Klas1 windows are manufactured from dense-grained northern pine. All glass is manufactured in Finland.

Fixed window Openable window Combination Window Fire-Rated Window Corner window Sound-insulated window Specialty glass Antenna Glass Frames Blinds

Also Explore

Window operation and maintenance instructions and quality requirements
System guide
Declaration of Performance

Please also note that Klas1 reserves the right to make changes to the information presented on the website. Always ask our staff for the latest information.