Ames, Iowa Homeowners install EcoSmart Replacement Windows!

Lee Sykes: A Midwest Construction Sales Veteran with over 20 years of helping homeowners save energy, maintenance and improving the exterior look of their home.


Lee, meet with these homeowners on a window project and came up with a solution! 

EcoSmart windows are custom built to fit into the existing jambs, headers, exterior sills and casing and interior wood work. Since they are custom built we can completely install a window including insulating, air and waterproofing and sealing in just a little over an hour. The job site is always cleaned up and all construction material is removed from the job site.

In 1985 Midwest Construction partnered up with Great Lakes windows and we haven’t looked back! The founder of Midwest Construction, Alex Despenas spent most of his time researching the best materials, the best installation practices. He made the decision to go with Great Lakes Windows because they had the most invested in research and development.

He explained to me (Paul Despenas) we want to be involved with a manufacturer who looks into the future. We want a manufacturer who is not happy with being average or just meeting the requirements. We are looking for a manufacturer who is looking well into the future to bring homeowners a product that will save energy and perform for a lifetime. Great Lakes Windows is that company.

32 years later, same window, same owners, same Quality Products & Quality Installation Since 1958!


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Midwest Construction was founded in Mason City, Iowa in 1958 and expanded into the Des Moines, Iowa Market in 1985.

Serving all of Iowa and Southern Minnesota with exterior home improvements

*Installation of:

*Vinyl siding

*Insulated Vinyl siding

*Everlast Advanced Composite Siding 

*Hardie Fiber Cement Siding

*Cover Soffit & Fascias

*Replacement Windows – Bay Windows – Bow Windows – Casement Windows

*Double Hung Windows – Slider Windows – Awning Windows

*All Season Sunrooms – 3-Season Sunrooms – Patio Enclosures - Screen rooms

*Replacement Patio Doors & Replacement Exterior Insulated Doors

*Shingled Roofing

*Seamless Gutters and Downspouts

*Gutter/Leaf Protection – Gutter Cap with Stone Coat

Midwest Construction also services homeowners throughout the state of Iowa.

Quality Products & Quality Installation is our motto! In business since 1958, Midwest Construction continues to provide families throughout Ames & Des Moines, Iowa with the finest possible exterior remodeling services – as a family-owned and –operated business, we wouldn't have it any other way...

As a premier Ames, Iowa Window, Siding, Sunroom and Door Company, our primary goal is to deliver comprehensive service and support to our customers – regardless of the size and scope of their project!

If you’re in the Ames area and are seeking quality exterior remodeling services, don’t hesitate to contact the pros at Midwest Construction. We’ve been helping people with Exterior Home Improvements Since 1958!

To experience our services first hand, risk free, come visit our showrooms – one in Mason City, IA and the other in Grimes – where you’ll be able to inspect full-size sun rooms and fully functional window displays...

Family Owned and Operated


2-Office Locations:

1601 South Taft

Mason City, Iowa 50401

2021 SE 44th Court

 Grimes, Iowa 50111


Our highly-trained, certified, and courteous professionals will be there to provide you with latest in water and air management techniques and customized services – bringing you results that exceed your expectations...

That’s right...since 1958 – that’s over half-a-century of dedicated service and experience working for you!

Call Midwest Construction today for a free consultation and no-obligation quote, or fill out a quote form to schedule a no-charge estimate!

1999 & 2015 recipients of the Better Business Bureau Integrity Award – Voted by Readers 2016 USA TODAY/Des Moines register Best of Best Home Improvement Contractor