Egress Window & Siding Specialists
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Egress Window & Siding Specialists
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Egress Window & Siding Specialists
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A Leading Home Improvement Contractor Serving the Kansas City Metro Area

One Source KC, based in Belton, Missouri, specializes in egress windows, versatile siding solutions, and full-service basement finishing for homeowners across the Kansas City metro area and beyond. With 50 years of combined experience, our in-house crews are known for their dependability, professionalism, and courteous service. Locally owned and fully licensed, we are dedicated to ensuring homes are not only beautiful but also safe and functional. Choose One Source KC for unmatched quality.

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Value-Driven Home Improvement Solutions

Egress Windows
Basement Finishing
Convenient Financing Options

Quality Home Improvement Is More Affordable Than You Think

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Why Choose One Source KC?

For homeowners seeking impeccable craftsmanship, One Source KC stands out. Our expertise combined with our unwavering dedication to superior service allows us to provide an industry-leading value on egress windows, new house siding, and basement finishing. When quality, reliability, and personalized attention matter most, we are the clear choice.

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50 years of combined experience in the industry ensures precision, knowledge, and mastery in every project we undertake.

Premium Products

We exclusively utilize top-tier products like ProVia egress windows and James Hardie fiber cement siding to ensure lasting beauty and performance.

Locally Owned & Operated

Based in Belton, Missouri, we pride ourselves on our community focus, serving the Kansas City metro area and beyond.

Licensed & Insured

For your peace of mind, we maintain all necessary licensures and insurances, underscoring our professionalism and commitment.

“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.

A Home Improvement Company That Puts Customers First

At One Source KC, each project unfolds with precision and care, guided by a methodical process rooted in decades of expertise. From initial consultation to final installation, we prioritize your vision. Our unwavering commitment ensures not just a transformed space, but also your complete satisfaction. With us, excellence isn’t just an outcome—it’s a promise.

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