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Orders leave our facility in 3 business days | Questions? 262-340-1418
Orders leave our facility in 3 business days | Questions? 262-340-1418

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Your Guide “The Portable AC Window Kit Venting Guide” is available now.

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Martinson Manufacturing designs and produces precision window inserts for portable air conditioners. Built for non-standard windows, each insert is made to exact dimensions and engineered to fit cleanly, install easily, and perform reliably in real homes.

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Our Promise

Every insert we build is
designed to fit your window exactly, install cleanly, and work the way it should. If it doesn’t fit right, we’ll remake it. No workarounds, no damage, no guesswork, just a solution that performs reliably in your home. Every time.

Contact

Martinson Manufacturing
705 Schoenhaar Dr #101
West Bend, WI 53090
262-340-1418
info@martinsonmanufacturing.com
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Trusted by thousands of homeowners who needed a real casement window solution.