Loren Schirber attended the University of North Dakota where he graduated with a Bachelor of Business Administration in Marketing and received a Certificate of Entrepreneurship. After UND Loren worked for CROSSMARK Sales and Marketing, an organization that competed in the space between consumer-packaged goods companies and mass merchandisers, eventually moving to Plano, TX to work at the corporate headquarters. After two years in the corporate world, Loren decided to return to Minneapolis to attend graduate school and be closer to his future wife, Jill Wilhelmi, family, and friends. Loren attended the University of Minnesota, Carlson School of Management full-time, and received his MBA in 2005. Loren’s studies focused on Venture Growth, Entrepreneurship, and Marketing.

Read Loren’s Employee Spotlight on our Remodeling Blog.

Tambra has been in the accounting world for over 25 years, where she has worked mostly for small businesses and nonprofits. She graduated with a Bachelors in Business (Accounting emphasis) and later went back to become a Certified Nonprofit Accounting Professional. “But I try to make a profit,” Tambra jumps in, as she laughs at her own joke.

Tambra came to Castle because she has always had an interest in architecture, design and remodeling. She also likes cost accounting, which she gets to work on as a Castle CFO. She was attracted to Castle specifically because of the information we have on our website. “I like that Castle offers education classes and is such a resource for homeowners, instead of just talking about how great they are. I like Castle’s business model and I’m confident they’re a stable business- I wanted to be a part of that!”

Larry has been at Castle since 2014.  Starting as a lead carpenter, he has quickly proved both his knowledge and skills and is now our Production Manager.  Larry taught High School for a few years Before moving into the home remodeling industry in 2001, Larry spent a few years teaching High School Agriculture Science.

Castle is a great place to work with a great team of designers, field crew, and managers. The key to a good company and great projects is great people. Larry appreciates the communication and systems necessary to help great people be a great team, as we have here at Castle.

Larry is married and has two children, middle and high school age, along with a house full of various pets. In his spare time, he enjoys canoeing, hiking and gardening.

Natalie received her Bachelor of Science in Interior Design from the Art Institute of MN and has been actively working in the industry ever since. She attended an alternative high school at the Minnesota Zoo called the School of Environmental Studies, where she developed a passion for environmental sciences. Right out of high school, she decided to pursue a career in Meteorology at the University of Oklahoma where she spent two years chasing tornados and attending Sooner football games. While this was exciting, she knew that it was not a lifetime career path for her.

She has been interested in art, architecture and interiors since childhood and settled on the field of interior design for her next educational adventure. She loves to use her knowledge of environmental sciences in her designs to help create functional, livable spaces that are sustainable and healthy for her clients. Natalie believes that listening intently to a client’s needs is the most important piece in creating the perfect personalized design.

Natalie finds inspiration for design in traveling – she enjoys traveling to Europe, specifically Scandinavia – and finds inspiration in nature. When she’s not chasing her toddler around the house, she spends her free time doing outdoor activities such as hiking, biking, fishing & kayaking, and loves yoga, cooking while drinking wine, and of course, watching thunderstorms with extreme excitement.

Darren came to the Castle team with extensive construction and home remodeling knowledge and skills. He has been in the construction industry since 1994 and has worked in all areas of the construction process, including general carpenter, lead carpenter, finish carpenter and project manager. In 2003, Darren started his own trim company. He also has extensive knowledge in electrical, plumbing and tile work.

For sixteen years, Darren worked as a project manager; running everything from small bath remodels to whole house builds. His portfolio includes homes valued in the millions which contributed to his extensive knowledge installing ultra-high-end cabinets and planning cabinet layouts.

Darren has two adult children that have grown up and are out on their own. In his free time, Darren spends a lot of time riding or working on motorcycles. He also enjoys working on his own projects and assisting on construction projects for friends.

Doug grew up in Philadelphia but moved to the Midwest in 2014 and hasn’t looked back. He spent 3 years working at a camp and conference center in rural Wisconsin before moving to Minnesota and starting in construction. He has a wide range of experience from maintenance on old apartment buildings all the way to framing multimillion dollar homes on Lake Minnetonka. He started at Castle in 2021 and has worked in a variety of roles.

Outside of work, Doug loves spending time in the great outdoors camping, hiking, biking and skiing. On Saturday mornings, you’ll find him tuning in to watch Manchester United matches. Doug also loves spending time with his wife, Rachel, and dog, Rooney.

Houses are Kirsten’s passion. At a young age she started playing around with houses in her head – what she would do if she had a magic wand. Kirsten graduated from Dunwoody College with a B.A. in interior design but since has changed direction to focus on Project Management. She has been working towards making houses amazing, efficient, and to their full potential ever since.

When she isn’t busy dreaming up beautiful spaces, she likes to spend most of her time with her blonde lab, Ty, hiking, camping and finding anywhere that’s dog friendly (including patio happy hours!). You’ll find Kirsten outside in the sun whenever possible.

Carter joined Castle in the fall of 2020 as Warehouse Assistant but was quickly recruited to work in the field.  After 5 years of learning demo, framing, millwork, cabinets, and other carpentry skills Carter returned as Warehouse Manager in 2025.

Carter enjoys physical activities and playing sports and working out.  Carter is active in his church and enjoys being involved.

Drawing from over 35 years in the remodeling industry and having grown up in the Twin Cities, John Rothbauer brings a wealth of local knowledge and expertise to the Castle team, making him the ideal consultant for discussing your next home remodeling project. We are thrilled to have John join us from his previous role at Sawhorse Designers & Builders. When he steps away from the job site, John enjoys unwinding and destressing by going for runs and taking his dog for walks.

Drawing from over 35 years in the remodeling industry and having grown up in the Twin Cities, John Rothbauer brings a wealth of local knowledge and expertise to the Castle team, making him the ideal consultant for discussing your next home remodeling project. We are thrilled to have John join us from his previous role at Sawhorse Designers & Builders. When he steps away from the job site, John enjoys unwinding and destressing by going for runs and taking his dog for walks.

Bailey joined Castle in 2021 after working in healthcare for nearly ten years. She has an extensive background in reviewing medical documents, calculating, and figuring out the best treatment for the patient’s test results. She took the tools she had learned to shift her career into a passion she has always had.

She has run her own small businesses on the side, learning how to market her own products. She is now using those skills to promote Castle. Once she started working at Castle, she knew this was the right place for her.

Libby earned her degree in Communications and Theater from Minnesota State University Moorhead. She has experience in administrative support and marketing and is driven by a passion for creativity. Libby takes pride in her ability to build and create from the ground up.

In her free time, Libby loves performing on stage, tending to her plants and garden, reading books, and decorating her home with fun, eclectic touches.

Designing and crafting is something that has been ingrained into Ashley’s character through the influence of family and friends. The concept of DIY (do-it-yourself) was taught to her early on. From years of practicing this whether it be sewing clothes, sewing her comforter, making art, or upholstering furniture she developed a passion for design.

Ashley recognizes that designers are given a great responsibility and opportunity to redefine quality. Interior Design is an outlet in which she is able to share this belief knowing how the layout, selections and aesthetic appearance of a space can truly impact people. Therefore she truly enjoys the opportunity to build relationships with clients and help them form solutions which consider both form and function and best accommodate their lifestyle.

Beyond work she likes to get outside as much as possible and is typically up for doing anything active. Some of her favorites are snowboarding, walking, rollerblading, and exploring the city via bike. A special appreciation for NE drives her to investigate the local spots unique to the area.

Mark Enlow is a registered Architect and Minnesota native, having completed Architecture School in New Orleans at Tulane University.  With experience spanning from Institutional to Commercial to Residential endeavors, he enjoys helping homeowners investigate the opportunities and navigate the challenges of building projects.

Having designed hundreds of kitchens, renovated dozens of homes, led many additions, and even the occasional new build, Mark’s experience has been intentionally broad, amassing knowledge to respond to the next client’s call with matching energy. Outside the office, Mark loves espresso and playing golf, guitar & piano; roots for the Wolves & Loons; and cares for bonsai, orchids & people.

Stefanie’s design career started at her neighborhood lumber yard creating deck plans before she joined the world of design/build remodeling.  By way of the University of MN, Stefanie earned a bachelor’s degree with a focus on Architecture and has worked in remodeling for many years.  Classical studies were also a significant topic in her education.  This interest in history evolved into a great appreciation for old homes, and a historic home tour is always on her travel agenda.

Early on, Stefanie developed an affinity for details with a keen eye for trim and tilework. She still loves learning about remodeling and is always eager to discover a fabulous new product or a priceless new tip from a carpenter.

A Minnesotan through and through, Stefanie has great appreciation for the lakes, the woods, and her home in the cities.  In her free time, she enjoys doting on her pollinator garden, raising butterflies, and travelling with her family.

Jackie graduated in 2020 receiving her Bachelor of Science in Interior Design from Dunwoody College of Technology located in Minneapolis, MN. She is a second-generation born Vietnamese while growing up in Minnesota all her life, and she has always had a passion for Interior Design. From drafting plans, to picking out finishes, and even doing some DIY, she is not afraid to get her hands dirty.

Design to her is all about problem solving to make your space functional for your everyday needs while showing your personality to make it uniquely your own. With her attention to the smallest details, she’ll find ways to incorporate any kind of style that you lean towards. Her own personal style would be Japandi to represent the timeless minimalist esthetic while still having fun with colors and textures.

When she isn’t designing, she’s paddle boarding on the lake, cooking for her friends and family, trying new food, or living her best life traveling and going to concerts.

Peter, a lifelong Minnesotan, graduated from the University of Minnesota with a Bachelor of Civil Engineering with a minor in architecture.  When not cycling around his favorite lakes, he can usually be found at his computer intently enjoying one of his many passions such as science fiction, music, and military history.  He jokes, “My childhood heroes wore different uniforms than most.”  More than anything else, he loves puzzles, both creating them and solving them.

Since high school, he has been involved in the designing, building, and maintaining of residential and light commercial buildings.  Over the last 2 decades, he’s been a laborer, a draftsman, an estimator, an office manager, and an independent consultant within the industry.  As one of Castle’s newest team members, he looks forward to putting his skills and experience to productive use.

Pam is a seasoned drafting professional and lifelong Minnesotan. She earned her Architectural & Construction Technology certificate in 1990. Pam’s career spans over two decades, including 23 years of CAD drafting for home remodels in an office setting, and 9 years as an independent drafter while raising her daughters.

Based in the northern suburbs, Pam is also a dedicated family person, married to her high school sweetheart of 42 years, and keeps busy with her four grandchildren including a weekly babysitting day! When Pam is not designing, you can find her camping (especially along the North Shore), hiking, or biking.