Changing just the windows can reduce your utility bills! We offer high-quality energy-saving sashes!
At KARVI JAPAN Co., Ltd., we offer high-quality energy-saving sashes that excel in insulation, airtightness, and soundproofing. We can significantly reduce utility costs and provide a comfortable living space tailored to our customers' orders. If you are facing issues such as "high utility bills every year" or "no matter how much I heat the room, it doesn't get warm," please feel free to contact us. 【Features】 ■ Window frames with multiple ventilation stages ■ Impact-resistant, multifunctional glass units ■ Windows and screens can be painted according to RAL standards ■ Lock and key handles (with child lock) ■ Waterproof welded structure *For more details, please download the PDF or feel free to contact us.
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【Lineup】 ■Optima System ■Standard System ■Premium System *For more details, please download the PDF or feel free to contact us.
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KARVI JAPAN Co., Ltd. is a window frame manufacturer that collaborates with various companies with a proven track record to produce windows. Our products utilize multi-layered glass, frames, and matching seals, creating a multi-layer structure that shuts out outdoor cold air and heat. Please feel free to contact us if you have any inquiries.