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You will feel right at home with Mainbuilt. We are the premier builder of luxury estates in Iowa. How? By executing high-quality craftsmanship and an intricate level of detail in every custom home we build. And never the same house twice.


Where you live should emulate how you live. Your home is a clear reflection of you, your distinct tastes, and personal comforts. Blending your aspirations and everyday lifestyle, our intimate process combines elegant artistry and fine craftsmanship with the highest standards of quality that make for a masterpiece. This starts with getting to know you, understanding your vision and creating a personalized approach that involves you every step of the way. Clients tell us our detailed timelines, in-person meetings and overcommunication are as valuable as what goes on our sketchpads.

Your journey home features a tailored experience centered around you. From our architects and designers to our project managers and skilled carpenters, we’re all guided by a simple premise: building a custom home should be fun.

Explore our portfolio of selected projects to see how we’ve helped shape dreams into luxurious living for so many Iowans. Just know that the place we build for you will be one-of-a-kind.


Mainbuilt began in 1957 with company founder, William R. Main. Originally named WR Main Contractors, William "Bill" started building homes and providing construction services as personal projects for friends and family. It wasn’t long before word of mouth spread which led to creating a trusted, well-respected, custom home building firm that continues to serve the Greater Des Moines Area. Bill wasn’t just the owner but a hands on worker. As the company grew, he was able to expand from completing one project at a time, to 3-4 large projects simultaneously, while still maintaining his high level of quality control. 


As the years went by, WR Main Contractors grew to become Mainbuilt, a second-generation "boutique" custom home construction company. Mainbuilt has always been a family business.  The current owner, Bill's son, Mark Main, can remember helping his dad with simple tasks such as cleaning up and carrying small tools while he was in elementary school.  Growing up in the company, Mark learned the art of construction by physically working with his father. He later officially joined his father in the business and continues to uphold the company’s reputation for high-quality craftsmanship, originality, and dedication to detail.


In 2021, three Iowa-based companies synonymous with luxury home building, interior design, and remodeling are now officially under one roof. MainBuilt, Meghan Blum Interiors, and Minnesota Cabinets are uniting their expertise and resources to provide customers with a seamless experience. They become the only company in Iowa to provide complete custom home construction and custom furnishings under one roof.

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