Book your Spring Siding, Window or Sunroom project now! Enjoy your the new look of your home and be the envy of your neighborhood. Save Now with our Home Show Manufacturer Incentives Savings! Call, sign up on our website, or stop into our showroom! 

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Quality products, quality installation is not only Midwest Construction's motto, but it is what we strive to provide to all of our beloved customers. We have researched and found the best products for your exterior remodeling project, becoming exclusive dealers on most to pass along great savings to you, and remain on top of the best installation practices the industry has to offer. What does this mean to you? Peace of mind that after we finish your job, you will enjoy your project for many years to come.

Midwest Construction, the leader in Iowa remodeling, was founded in 1958 by Alex P. Despenas and continues to be a family-run business specializing in exterior home remodeling in Iowa. We have two showrooms for your convenience, one in Mason City and one in Des Moines (Grimes). Both of our showrooms feature full-size sunrooms, fully functioning window displays and samples of all of our remaining products. Simply stop on by, we'd love to see you!

All of our Production Managers are VSI Certified, and they'll guarantee that your remodeling project is completed in a timely and professional manner. At Midwest Construction, our goal is to ensure that you're replacements windows, siding, doors, gutters or sunroom comes with the peace of mind and comfort you get with the best quality and most energy-efficient product, while at the same time making sure you know your project is being installed by well-trained, experienced and professional crews.

A remodeling project may seem overwhelming, but with Midwest Construction, Iowa's exterior remodeling leader, the project always goes smoothly. Midwest efficiently guides you through the remodeling process, from your free, no-obligation initial design consultation through the construction phase to providing you with the best warranties in the industry for protection for years to come. Midwest Construction's quality products, quality installation is the right choice for your next remodeling project.

BBB Review

The BBB is a good resource for finding out further information on local contractors. The BBB has a report on each company and you can go onto their website (BBB) and see what the company rating is, any complaints filed and how long they have been accredited. The Better Business Bureau ensures that high standards for trust are set and maintained. They exist so consumers and businesses alike have an unbiased source to guide them on matters of trust. Midwest Construction is a proud recipient of a 2015 BBB Integrity Award.

Credentials

Grimes Midwest Construction


  • 2021 SE 44th Court Grimes, IA 50111
  • Open Mon-Fri: 8am-4:30pm, Sat: By Appointment Only
  • (515) 305-2241

Mason City Midwest Construction


  • 1601 South Taft Ave Mason City, IA 50401
  • Open Mon-Thurs: 8am-4:30pm, Fri:8am-1pm
  • (641) 715-9007
Midwest Construction

Beautiful Results Enjoyed by Countless Homeowners

Our stunning windows have been appreciated by homeowners all across Central Iowa. View our gallery for inspiration!

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NAHB BBB NARI Energy Star Lead-Safe Certfied Firm - EPA VSI Certified Vinyl Siding Installer Preferred Partner Full Back - Insulated Siding Trusted Local Reviews | Midwest Construction & Supply, Inc. Remodeling Big50 USA Today HBA