Who We Are

Passionate and Dedicated Craftspeople

Constructive Builders is a team of respectful, fun and dedicated craftspeople.

We’re not a big corporate builder and we’re not a tiny unlicensed operation. We are the sweet spot in the middle: licensed, experienced, practical, personable, approachable and positive.

Our team is made up of people who are passionate about building, not just managing a crew of others who do the work. This means we put our own touch into your projects, creating higher quality projects with more customization at a lower price. With skilled carpenters, tile setters and floor finishers on staff, we prefer to work alongside our partners vs. just managing them.

We have an extensive network of qualified, respectful and trustworthy subcontractors that we tap for specialty areas or when we need to amp up our team for a swifter timeline.

License Details
We are proud to be a licensed Minnesota contractor. This means that our company owner, Eric Kottke, has passed a written test on building codes and legal and business requirements/obligations for contractors operating in the State of Minnesota. You can see our license status online at the MN Department of Labor and Industry site anytime. In order to be a licensed contractor you must also show proof of valid and sufficient liability and business insurance. Constructive Builders has met all these qualifications in order to attain its license. We also feel we go well above and beyond the minimum requirements set forth by the state in our work. For more information, including the state’s recommended steps to choose a contractor, visit this helpful homeowner’s page of the MN Department of Labor and Industry website.

Eric Kottke


Eric founded the company to serve clients who share his appreciation for positivity, quality craftsmanship, great value and green practices. Meet Eric.

Julie Lunn

Realtor/Design Adviser/Organizer

Julie provides organization and communication for all clients. Her background in business, design sensibilities and real estate license make her a great complement to CB’s building expertise. Meet Julie.

Jake Tonsager

Job Site Manager

Jake keeps the trains running on the job site, bringing a positive outlook, proactive communication and a great work ethic to our clients. He’s also a hardwoods flooring expert. Meet Jake.

Nate Keller


A highly creative person who one day dreams of building his own tiny home, Nate works on remodeling projects of all sorts for our clients. Meet Nate.