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Josko one is a innovative window system by @josko
Which features:
Passive house U values
Airtightness class 4 (highest class)
Totally symmetric system
Tilt and turn and up to 3m in height
Sliding door up to 3m in height
Ultra slim 50mm profile with custom finish inside
Custom internal finishes: available in oak, spruce, larch, aluminium finish
100’s of colours /finishes available
One stop shop with venetian blinds, Roller shutters, Zipscreen shading to prevent overheating
Matching handles throughout whole product range
Arrange a visit to our large showroom in Wimbledon to see the range
