Trusted for Basement Finishing Solutions in Kansas City, MO

Basements don’t have to be dark, forgotten spaces. At One Source KC, we specialize in turning underused lower levels into functional, beautifully finished areas that feel like a natural extension of your home. Serving homeowners throughout Kansas City, Missouri, we create custom basement spaces designed around the way you live—whether that means a home theater, a kids’ hangout zone, or a quiet retreat to work or relax.

A Smarter Way to Add Living Space

Finishing your basement is one of the most efficient ways to expand your home’s livable square footage without building out. It’s not just about adding rooms; it’s about adding usable, personalized space that serves your family’s needs. A finished basement can house everything from a guest suite or fitness studio to a stylish wet bar or entertainment lounge. It also increases your property’s value and improves energy performance with added insulation and sealing.

Full-Service Basement Finishing from Floor to Ceiling

When you work with One Source KC, you’re partnering with a team that manages every detail. We handle the entire process, including layout planning, framing, electrical work, drywall, flooring, and finishes. Our team ensures everything blends seamlessly with your home’s design while delivering comfort and durability for the long haul.

Your Vision, Our Expertise

No two families are the same, and neither are their basements. That’s why we take the time to listen, plan, and build according to your unique goals and budget. From the first consultation to the final walkthrough, we prioritize your satisfaction.

Get Started Today

Ready to get more from your Kansas City home? Contact One Source KC to explore basement finishing options and schedule your design consultation. Let’s turn that unused space into your favorite place.

“Had them install an egress window in my basement yesterday. Top notch service, very respectful of my house and left ZERO mess. Guys were easy to talk to and actually took the time to explain to me what they were doing, as they went along installing it (I was curious as to how they did it so I watched them nearly the 4 hours they were there). My 6 year old son was hesitant of moving his room to the dungeon, and now that the window is in, he is actually excited! lol One Source was by far the cheapest, and that usually that lacks quality, although I believe now it was the cheapest and probably the highest quality I could have received. Highly Recommended! Curtis, Cody and the guys are great!”

Cory F.
A Locally Owned & Operated Company

With 50 Years of Combined Experience

Delivering Quality Service & Professionalism
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“I can't say enough about Curtis and his crew. They were here on time, did beautiful work and no mess left behind. Very polite. Our inspector said it was a beautiful job :). We will used them again.”

- Kevin S.

“Had them install an egress window in my basement yesterday. Top notch service, very respectful of my house and left ZERO mess. Guys were easy to talk to and actually took the time to explain to me what they were doing, as they went along installing it (I was curious as to how they did it so I watched them nearly the 4 hours they were there). My 6 year old son was hesitant of moving his room to the dungeon, and now that the window is in, he is actually excited! lol One Source was by far the cheapest, and that usually that lacks quality, although I believe now it was the cheapest and probably the highest quality I could have received. Highly Recommended! Curtis, Cody and the guys are great!”

- Cory F.

“These guys were AMAZING! I'm in property management and work with contractors every day. This entire team was very professional! Took every precaution to protect our lawn, as well as our neighbors. No mess in our basement or our house. They put down drop cloths to protect our floors leading to the basement. I don't think I have ever worked with a contractor that made a job look so easy. Thanks again to the entire crew that installed our two new basement windows.”

- James H.