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
Marc Kelash
Becky Lawin
Sam Kelash
Grant
Why choose Keystone?
Design-Build Expertise
Client Centered Approach
Innovative Solutions
Comprehensive Services
What Our Clients Are Saying
