Quality Windows, Siding and Doors Since 1976 1-866-4FELDCO® | Customer Support
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  • all Feldco products are EPA certified to be lead safe
  • osi certified installer
  • window and door magazine dealer of the year
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Service Areas

We are proud to serve communities and neighborhoods in Illinois, Iowa, Wisconsin and Northwest Indiana with our energy efficient line of replacement windows, siding, entry doors, patio doors and garage doors.  The Feldco service area continues to grow and we have installed over 1,250,000 windows in over 400,000 homes and we look forward to helping you with your home renewal project as well.

Below is a list of some selected cities and towns that fall within our service area. Enter your zip code in the box below and hit enter to check if we service your area.



We serve most of Northern and Central Illinois with the best in replacement windows, siding and doors. From Chicago and its suburbs to Rockford and Freeport to Peoria and so many towns in between, look no further for your window, siding and door needs. Below are a just a few additional towns we proudly serve.


With a showroom in Davenport, we cover not only the Quad Cities but many communities in both Iowa and Illinois. Whether you reside west of the Mississippi in Le Claire or Bettendorf or on the Illinois side in Moline or Rock Island, Feldco is your best choice for your exterior home improvement project.


With three showrooms in Wisconsin, we serve homeowners from Milwaukee to Madison to Green Bay/Appleton and Wausau and so many other local communities in Southeast, Central and Northeast Wisconsin. With our high quality, energy efficient products, we are the best choice for replacement windows, siding and doors in Wisconsin!


Our flagship location serves the greater Northwest Indiana area and we have been replacing windows, siding and doors from Gary to Merrillville to Michigan City and more for almost 40 years. Look no further when it comes time to replace your windows, siding and doors.

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