Grendahl Design Company is a design build firm that provides new build construction homes in the Bismarck Mandan area. We are a husband and wife team that thrive together and in the building process.

Roger is the project manager of the homes, and he is hands on during the construction process. He makes sure the projects run smoothly and in a timely fashion. He has a background of 18 years plus in the construction industry, and runs a successful electrical business RG Electric Inc. He has overseen many large projects, and has managed several new construction house projects.

Sarah brings the style (thatโ€™s me!) and design. She has a degree in Interior design, and designing homes is her passion. She designs everything from the floor plan and up. Craftsman Coastal design is her favorite design style. She loves designing homes and creating a families dream home.

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