Midwest Construction Top 200 Home Improvement Professionals in the USA - Ranked by Qualified Remodeler Magazine November 2016 Issue. Our Father Alex Despenas, started this company in 1958. He came up with our company slogan, “Quality Products & Quality Installation” and we still live up to that today. It is our goal to make your home improvement experience a good one!


Midwest Construction has 2 office/showrooms: Mason City, Iowa & Grimes (Des Moines). Our office features full size window displays, insulated vinyl siding, polymeric and fiber cement products to view. Each office has an Oasis All Season Sunrooms, attached to the building, to give homeowners a real life experience when they step into the sunrooms.

Paul Despenas, Director of Marketing says you can have the best products in the home improvement industry, but you also need installers to follow the manufacturers’ installation practices, so not to void the warranty and leave the homeowners without service in the future. With today’s water and air management practices, you window or siding project will actually protect your home from the inside out while preventing and water or air infiltration.

Quality Products & Quality Installation Since 1958

1999 & 2015 Better Business Bureau Integrity Award Recipients

2016 USA Today/Des Moines Register Best Home Improvement Contractor

Qualified Remodeler Big 50