Energy Efficient Windows

Energy Cost has raised over 40% in the State of Iowa! Is your home loosing Energy through your windows?

What can you do to conserve energy, keep your home more comfortable and update the look of your home?

Replace your old drafty windows with EcoSmart Custom Built Replacement windows!

Back in the 1980’s through the 1990’s Americans dealt with high energy cost and took steps to conserve energy, lower their heating and cooling bills.

In 1984, Midwest Construction introduced to the State of Iowa, custom built energy efficient windows that fit into the existing openings and SAVE ENERGY!

38 Years Later we are selling the same window with the best systems to not only save energy, fit into the existing openings, and never need painting and can be cleaned from the inside of your home.

EcoSmart Windows by Great Lakes windows, are the best fit for your home and here is why!

1.      Oldest Exterior Home Improvement Company in the State of Iowa installing your products according to the manufacturer’s specifications.

2.      The Great Lakes Window brand is a leading manufacturer of high-performance replacement and remodeling windows. With a past deeply rooted in forward thinking, we deliver quality products by working with well-known and respected dealers who are driven to bring homeowners the best window on the market.

3.      For as long as you live in your home, we give your windows full protection with our Limited Lifetime Warranty*. Our warranty covers the frame, sash, glass seal failures or glass breakage, hardware, screens and more. Should you ever decide to move, it’s transferable to the next homeowner.

4.      Performance Glass Options: The sealed insulating glass is the heart and soul of this engineered window solution. You’ll find a wide selection of options in both EnergyGuard and SmartGuard glass packages to meet your needs, bringing you beautiful views and a comfortable home year round.

5.      Fusion-Welded Frames: The frame and sash on EcoSmart windows are 100% fusion welded for superior sealing against air and water infiltration. To ensure long-term performance, screws and mechanical fasteners are never used.

These are just a few of EcoSmart Window Features. For more information you can visit or

Patio Doors:

When your home is ready for some exterior home improvements like: All Season Sunroom! - New Windows – New Patio Doors - New Siding – New Doors

Your project will be done in a timely professional manner by our well trained crews. Your job site will be cleaned up daily and all tools secured. Each and every one of our crews is insured for your peace of mind and comfort.

2021-SE 44th Court Avenue-Grimes, Iowa 50111                                                                1601-South Taft Avenue-Mason City, Iowa 50401

You can give us a call at 1-800-925-6664 to schedule an Exact Cost in home estimate or schedule on-line or simply stop into one of our showrooms and operate full size window displays, check out all of the different siding profiles and colors, or step into our Oasis All season Sunroom attached to our showroom to give you that real life sunroom experience.