Iowa has been improving homes with new windows, siding, sunrooms and seamless gutters since 1958.

Our founder, Alex Despenas, started out in the replacement siding industry back in the early 1950’s and watched the industry and demand for grow for quality home improvements. In 1983, Midwest Construction sold their first replacement window job and has not looked back. It took a while for Alex to pick a product he wanted his firm to represent and after many trips to window manufacturers he settled with Great Lakes windows from Toledo, Ohio. After he made the decision to exclusively sell and install Great Lakes Windows, I asked him why he made that decision. He said, “this is the only window manufacturer I have visited with a complete testing laboratory and have dedicated money for research and development for well into the future and that is good for our customer and good for our company.”

34 years later, we still sell and install the EcoSmart Window manufactured by Great Lakes Windows a Ply Gem Company.

All of our windows are custom built for each and every order that is sold. These windows are built for your home and your home only. With the finest material our industry has to offer, along with the best machinery and labor to assemble your new EcoSmart Replacement window.

EcoSmart windows come with a Lifetime warranty on all parts, master and sash frames and including our unprecedented Lifetime seal failure and glass breakage warranty. You can rest assured your windows will perform, save you energy and if you should ever need service on your windows, Midwest Construction will be there to service your windows for as long as you own your home.

Check out the features the EcoSmart Replacement windows Offer:

Our installation crews are certified and use the latest in materials for wind and water protection to ensure your biggest investment your home is safe.


If you in the market for new windows or any home improvements give Midwest Construction a call today at 800-925-6664 for a free no cost inspection and exact cost or simply go to our website (www.mwcinc.com) and request a quote.