Midwest Construction founded by Alex P. Despenas is a Family owned and Operated Home Improvement Company, has been improving homes in Iowa and southern Minnesota since 1958. Our founder came up with our slogan “Quality Products Quality Installation” and we still live up to that today.

With Showroom / Warehouse located in Mason City and Des Moines (Grimes), Iowa both offices specialize in Quality Exterior Remodeling services. We offer Custom Built Replacement Windows, Insulated Vinyl Siding Products, Eaves and Overhang’s (Soffit and Fascia), Seamless Gutters and Down Spouts, Insulated Doors and our Screened in Patios,3 and All Season Sunroom Enclosures.

Your Home Improvement Project will be done in a timely professional manner by our well-trained installers. The installers will be on the job daily (weather permitting) until your project is completed. The job site will be cleaned up daily and all tools secured. All of our crews are bonded and insured for your peace of mind and comfort.

It is the design of Midwest Construction to be recognized as a premier Home Improvement Company, built on loyal relationships with our customers, employees and manufacturers of the products we sell and install.