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Midwest Construction - Iowa Windows, Siding & Sun Rooms
At Midwest Construction, "Quality Products, Quality Installation" is our motto because that is what we set out to provide for each of our customers.

Bradley C.


I would highly recommend Midwest Construction to anyone looking to add a sunroom to their home. This company is professional, timely, and helpful. If something is not right, they are going to make it right. We are excited to have our sunroom and enjo...

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Midwest Construction

Mason City

Mason City, IA

Phone - (515) 305-2241
Hours - Mon-Thurs: 8am-4:30pm, Fri:8am-1pm

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Grimes, IA

Phone - (515) 305-2241
Hours - Mon-Fri: 8am-4:30pm, Sat: By Appointment Only

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Competitive Financing Options (WAC)

Midwest Construction’s Team will work with you to provide the best options available for your exterior remodeling project.

Instant Cash Coupon with Up to $650 Off New Siding, $650 Off New Sunroom Purchase Or $65 Off per Window Opening

Use our Instant Cash Coupon and save $650 off Complete Siding Job Installed. All Colors Available. *Not valid with other offers or prior sales,* Must be over 1,000 Square Feet*

Job Opportunities

Contact Us Today To Find Out More About A Career At Midwest Construction!

Why Choose Midwest Construction

Max & Amy Say It!

Max & Amy Say It!

Max & Amy, WHO 1040 AM Des Moines, Iowa Talk Radio. They say: "It's one of the finest family run businesses we've ever seen."

Family owned and operated

We Say It!

Midwest Construction, family owned and operated, has been providing quality products and professional installation since 1958.

Satisfied Customers

Satisfied Customers Say It!

Real testimonials from real customers. Here is why theses customers are so happy with Midwest Construction. Read customer testimonials here.

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About Midwest Construction

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.

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Midwest Construction

Project Portfolio

Serving customers throughout Iowa. Check out our past projects.

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Popular Products & Services

Midwest Construction offers the best replacement windows, siding and sunrooms available โ€“ and our customers always โ€“ always โ€“ talk about our clean, courteous installation crews.


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 Diamond Dealer