About Us | Keystone Design Build - Your Trusted Construction Partner

About Keystone Design Build

Keystone Design Build is your dedicated partner in bringing your vision to life. Based in Waite Park, MN, Keystone is a premier commercial construction firm specializing in creating exceptional spaces across various industries, including dental clinics, retail centers, restaurants, multi-family housing, warehouses, manufacturing facilities, funeral homes, and more.

Our Vision

We envision being the leading design-build partner for businesses and institutions, known for delivering unique solutions that not only meet but exceed expectations. At Keystone, we don’t just build structures—we build lasting relationships and spaces that enhance the lives of those who use them.

Our Mission

Our mission is simple: to deliver high-quality, customized construction projects with a relentless focus on innovative design and client satisfaction. Whether you’re planning a new dental office, a retail space, or a specialized facility, our team’s expertise and commitment ensure that your project is completed with the highest standards of craftsmanship.

Keystone Design Build

What we are built on to better serve you

Leadership and Team

Founded by Marc Kelash, Keystone Design Build is now led by his son, Sam Kelash, along with Grant Mumm, who heads sales and business development. Together, they are driving the company forward, expanding our team and opening new channels of growth while maintaining the high standards of quality and client satisfaction that have become synonymous with the Keystone name.

Our Process

The Keystone process is built on trust, expertise, and a deep understanding of our clients’ needs. From the initial consultation to the final walkthrough, we ensure that every detail is managed with precision and care. Our process is especially effective in specialized sectors like dental and funeral construction, where our experience adds significant value.

Commitment to Quality

Quality craftsmanship, attention to detail, and an unwavering commitment to client satisfaction are at the core of everything we do. Our projects are a testament to our dedication, and we stand behind our work with a 1-year warranty and ongoing support as needed.

Meet the Team

Our team is the backbone of our success – a group of dedicated, experienced, and passionate professionals who bring creativity and expertise to every project. We take pride in our ability to exceed expectations, consistently delivering superior results that surpass our clients' aspirations. Get to know our team members below.

Marc Kelash

Owner/Project Manager

Marc has been an owner and project manager since 2003. His goal is making client satisfaction, attention to detail, and communication a priority with our clients. In Marc's spare time, Cheryl (Marc's wife) and him enjoy traveling, and doing a lot of summertime camping and entertaining with family and friends.

(320) 761-8062

marck@keystonedb.com

Becky Lawin

Office Administrator

Becky is the Office Manager at Keystone Design Build Inc. Becky has worked in office management for the past 10 years keeping everyone in line. In her free time she enjoys spending time with her family, and her favorite animals ~ turkeys and dogs.

(320) 253-3301

beckyl@keystonedb.com

Sam Kelash

Project Manager

Sam has been a project manager with Keystone Design Build for 8 years. He enjoys meeting with clients and helping them along the entire build process, from concept to completion. Outside of work, Sam enjoys spending time with his family outdoors, playing music and enduring the pain of watching Minnesota sports.

(320) 241-5234

samuelk@keystonedb.com

Grant

Development Consultant

Grant is an outdoor enthusiast. Whether it comes to hunting or fishing, he has a knack for being in nature. What sets Grant apart is his ability to make friends wherever he goes. With years in sales experience his approachable nature brings people together, and his positive spirit is contagious.

(320) 339-9978

gmumm@keystonedb.com

Why choose Keystone?

Schedule Free Consultation

Design-Build Expertise

We handle every aspect of your project in-house, from design to construction, eliminating the need for external architects and ensuring a seamless process.

Client Centered Approach

Our business is built on relationships, not transactions. We work closely with you from start to finish, tailoring every aspect of your project to your specific needs.

Innovative Solutions

With a keen eye for detail and a passion for innovation, we deliver creative, customized solutions that set your project apart.

Comprehensive Services

As a one-stop shop, we assist with everything from design and construction to financing and land acquisition, making your journey from concept to completion as smooth as possible.

What Our Clients Are Saying

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A Seamless Process from Start to Finish

“Keystone Design Build exceeded our expectations. From the initial consultation to the final walkthrough, their team was professional, communicative, and delivered a space that truly reflects our business needs."

Sarah Johnson

Expert Guidance for Our Dental Office Build

“The team at Keystone understood the unique challenges of dental construction and designed a space that is both beautiful and functional. Their attention to detail was exceptional."

Dr. Lydia Tom

Expert Guidance for Our Dental Office Build

“The team at Keystone understood the unique challenges of dental construction and designed a space that is both beautiful and functional. Their attention to detail was exceptional."

Dr. Lydia Tom

Latest article and news

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ADA Compliance in Dental Clinics: Ensuring Accessible and Inclusive Design

Transform your dental clinic with ADA-compliant design! Our guide provides tips on accessible layouts, equipment, and legal standards to enhance patient experience and meet ADA requirements.

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November 12, 2024