Midwest Construction NARI Member since 1987

Over 20 years ago the National Association of the Remodeling Industry (NARI) declared May as National Home Improvement Month.

What is NARI?

NARI is the only professional trade association dedicated solely to the remodeling industry. NARI helps you adapt to the pressures of a changing economy through industry intelligence, provides you a voice in Washington, increases your professionalism and allows you to learn from your peers.

Alex Despenas founded Midwest Construction in 1958 with one goal in mind! To offer homeowners Quality Products & Quality Installation! That is what we have done and continue to deliver to homeowners throughout Iowa.

We would like to invite you into our showrooms to see full size windows and siding displays including are Oasis All Season Sunrooms for homeowners to actually sit in and get a real idea of what a sunroom can do for you.

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

Grimes Showroom:

Full size window displays to operate and siding displayed on walls.

Step into our Oasis All Season Sunrooms:

Grimes Showroom:

Mason City Showroom:

Mason City Sunroom:


National Home Improvement Month and 62nd Anniversary Sale!  -  Take Advantage of our Manufacturers Incentives and Midwest Constructions Instant Cash Coupon to Save Big Money!




When your home is ready for an updated look with energy efficient products then give Midwest Construction a Call Today! 1-800-925-6665 or Schedule a Free Exact Cost at https://www.mwcinc.com/quote/

Siding - Windows - Sunrooms - Patio Doors - Insulated Entrance Doors - Gutters - Gutter Protection 

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.

Important Information Regarding COVID-19: Due to COVID-19, our Showroom will be open by appointment only. Call (515) 986-3545 to schedule for Grimes, Iowa showroom. Call (641) 424-4717 to schedule for Mason City, Iowa showroom. We are accepting in home appointments. Our Design Consultants are protected with mask, gloves and disinfectant wipes/spray.