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  • Complete Installation & Sales. Call Now for Free, In-Home Estimates.
  • Offering Door Replacements for Improved Elegance & Security
  • Contact Us for Window Replacements & More in St. Charles, St. Louis County and surrounding areas.


Trusted Window Contractors Serving St. Louis, St. Charles and Nearby Areas

house with big windows
For more than 25 years, St. Charles residents have turned to Bi-State Window & Door Inc. for a variety of exterior services, and we’re ready to help you transform your home. Your home represents one of the largest investments you’ll ever make, and one of the ways to protect that asset is to constantly look for ways to upgrade the structure. Energy efficiency is one of the most desirable attributes for any house in today’s environmentally conscious society, and a window contractor can help make your building leaner and greener. If lower utility costs and increased curb appeal sound good to you, it’s in your best interest to work with an experienced company to ensure a quality installation.

Installation and Other Services

No two household jobs are identical, which is why you should work with a versatile door contractor like Bi-State Window & Door Inc. We have a team of expert technicians who have decades of experience providing many different home upgrades, including:
  • Custom windows
  • Repair and installation of storm and patio doors
  • Glass replacement
  • Maintenance services
Door and window replacement and repairs Whether you’re looking to upgrade all of your windows or simply repair some broken glass, you can trust our staff with jobs of any size.

Contact Us in St. Louis, St. Charles and Surrounding Areas

If you live in St. Louis, St. Charles and surrounding areas, trust Bi-State Window & Door Inc. for repairs and upgrades for all of your windows and doors. Your home’s exterior appearance makes the first impression for any visitor, so why would you go with an inexperienced contractor? You might save a few dollars in the short term, but improper installation could lead to some expensive headaches in the future. To learn all about our services or schedule an appointment for a free estimate and inspection by one of our technicians, give us a call today at 636-441-3200.


Thank you so very much for your kind, patient assistance and wonderful expertise with my window project.
With Sincere Appreciation,

Pat did some door repair work for me yesterday – he is a great worker. He is quick and very knowledgeable.

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  • Bi-State Window & Door Inc
    5765 Westwood Drive
    Weldon Spring, MO 63304

    Phone: 636-441-3200
    Fax: 636-441-1866
    Business Hours:
    Monday-Thursday, 7:30 a.m.-3:30 p.m.
    Friday, 7:30 a.m.-3 p.m.
    Saturday, By Appointment Only
    YP Reviews