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    Meet Your Crew

    Real people. Real good at what they do. Get to know the crew behind the work—we’re proud to have ’em on our team.

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    Dwayne Klarenbeek

    Dwayne Klarenbeek

    Founder | Chairman of the Board

    Dwayne Klarenbeek

    Dwayne founded Midwestern Mechanical from his home office in Larchwood, IA and brings over 35 years of experience in the mechanical construction industry. He has served in roles from Superintendent to CEO, leading major hospital and school projects. Outside of work, Dwayne enjoys fishing and diving around the world.

    Ken Amundson

    Ken Amundson

    President

    Ken Amundson

    Ken joined Midwestern Mechanical in 2009 after owning a construction company. He became Vice President in 2013 and President/CEO in 2019, leading the 2024 transition to a 100% employee-owned ESOP. Outside of work, Ken enjoys camping, motorcycling, time with his grandkids, and cheering on the Chiefs.

    Gary “Tigger” Terwee

    Gary “Tigger” Terwee

    Board Member

    Gary “Tigger” Terwee

    Coming Soon

    Brigham Wachal

    Brigham Wachal

    Vice President

    Brigham Wachal

    Since joining Midwestern Mechanical in 2007, Brigham has held roles in estimating, project management, and leadership, becoming Corporate Vice President in 2020. He values teamwork, training, and tech-driven improvement. Outside of work, he enjoys youth hockey, Vikings football, and golfing.

    David Olsen

    David Olsen

    CFO

    David Olsen

    David joined Midwestern Mechanical in 2017 and leads the finance and accounting team as CFO. He specializes in finance, construction accounting, and mergers and acquisitions. Outside of work, David enjoys farming with his brothers, golfing, and cheering on the Nebraska Cornhuskers!

    Jeremy Roland

    Jeremy Roland

    Director of Safety

    Jeremy Roland

    Jeremy joined Midwestern Mechanical in February 2023 as Director of Safety. He holds a B.S. in Safety and is an OSHA-authorized trainer for both construction and general industry. Previously, he served as lead safety trainer at the South Dakota Safety Council. Jeremy is dedicated to fostering a safe and proactive workplace culture.

    Cody Schroeder

    Cody Schroeder

    Education and Development Manager

    Cody Schroeder

    Cody joined Midwestern Mechanical in 2005 as a Plumbing Apprentice and now oversees training for 100+ apprentices each year. He’s passionate about growing the next generation of trades professionals. In his free time, Cody enjoys family, sports, hunting, and the outdoors.

    Brooke Barhite

    Brooke Barhite

    Marketing Coordinator

    Brooke Barhite

    Brooke brings 20+ years of marketing and sales experience to Midwestern Mechanical. She manages branding and communication across all four locations, adding creativity and energy to every project. Known for her love of movie quotes, song titles, and fun facts, Brooke keeps things both polished and fun.

    Jared Christopher-Holt

    Jared Christopher-Holt

    Director of Mechanical Construction (Sioux Falls, SD)

    Jared Christopher-Holt

    Jared joined Midwestern Mechanical in 2015 and leads our commercial plumbing team in Sioux Falls. With 15+ years in the industry, he’s known for solving tough challenges and keeping projects on track. Outside of work, he enjoys time with family, fishing, hunting, and camping.

    Rob Lester

    Rob Lester

    Director of Fire Protection (Sioux Falls, SD)

    Rob Lester

    Rob brings over 30 years of combined construction and fire protection experience. He has held roles from carpenter to project manager, and now leads as Division Director. Rob has managed a wide range of projects, from schools to hospitals, and is passionate about customer service as the key to strong partnerships.

    Josh Olberding

    Josh Olberding

    VDC Director (Sioux Falls, SD)

    Josh Olberding

    Josh joined Midwestern Mechanical in 2010 and now leads the design-to-fabrication process as VDC Director. With deep trade experience and a drive for innovation, he ensures projects are delivered on time and within budget. Outside of work, Josh enjoys mentoring, motorcycling, hunting, and fishing.

    Nathan Klemm

    Nathan Klemm

    Plumbing Service Manager (Sioux Falls, SD)

    Nathan Klemm

    Nathan joined Midwestern Mechanical in 2014 as an apprentice plumber and later moved into service. He’s been Service Manager in Sioux Falls since 2022 and leads the Sioux City team starting in 2025. Outside work, Nathan enjoys music, motorcycling, fishing, camping, and time with loved ones.

    Brett Kaltvedt

    Brett Kaltvedt

    Branch Vice President (Rapid City, SD)

    Brett Kaltvedt

    Brett has been with Midwestern Mechanical since 2003 and is VP of our Rapid City location. He keeps operations on track, supports team balance, and drives growth. He’s active with PHCC and tech education, and outside of work, enjoys camping, outdoor projects, and hunting for sasquatch.

    Bryan Hermanson

    Bryan Hermanson

    HVAC Division Manager (Rapid City, SD)

    Bryan Hermanson

    Since 1992, Bryan has held roles in the HVAC industry from Field Service Technician to business owner. He has extensive experience in residential and commercial systems, specializing in design-build and negotiated projects. His focus is on building strong customer relationships and delivering complete satisfaction on every job.

    Dustin Christensen

    Dustin Christensen

    Plumbing Service Manager (Rapid City, SD)

    Dustin Christensen

    Dustin joined Midwestern Mechanical in 2010 and is the Manager of the Plumbing Service Department. He is focused on meeting with customers, quoting service jobs and managing small commercial projects. Outside work, Dustin enjoys camping, BBQing for large groups of people and spending time with family.

    Dan Williams

    Dan Williams

    HVAC Service Manager (Rapid City, SD)

    Dan Williams

    Daniel joined Midwestern Mechanical in January 2024 as a service technician and quickly advanced to HVAC Service Manager. He leads with a focus on “Performance with Pride,” ensuring quality service and team excellence.

    Donovan Wunschel

    Donovan Wunschel

    Branch Vice President (Spencer, IA)

    Donovan Wunschel

    Donavon joined Midwestern Mechanical in 2013 and leads operations at the Spencer office. With experience in business management since 2010 and military service since 2005, he brings strong leadership and a passion for teamwork and customer service.

    Brian Palmer

    Brian Palmer

    Plumbing Director (Spencer, IA)

    Brian Palmer

    Brian started with Midwestern Mechanical in 2006 as a plumbing apprentice and now leads as Plumbing Director. He specializes in design-build plumbing solutions and enjoys competitive darts and golf in his free time.

    Lance Storley

    Lance Storley

    HVAC Director (Spencer, IA)

    Lance Storley

    Since starting as a commercial plumber in 2003, Lance has progressed from service tech to Project Manager. He has experience with HVAC and hydronic systems of all sizes and is committed to continuing education. Lance now helps teach Midwestern’s HVAC apprenticeship program.

    Paul Piddington

    Paul Piddington

    Service Manager (Spencer, IA)

    Paul Piddington

    Paul started in refrigeration at 16 in 1999 and quickly moved up through the ranks to become service manager. Paul takes pride in Midwestern Mechanical’s service team and consistently prioritizes the customer experience.

    Brandon VanSickler

    Brandon VanSickler

    Branch Manager (Sioux City, IA)

    Brandon VanSickler

    Brandon joined Midwestern Mechanical in 2013 and leads operations at the Sioux City branch. He focuses on delivering high-impact projects on time and within budget. Outside work, Brandon volunteers with the American Legion and enjoys hunting and fishing.