Central Wisconsin · Licensed & Insured
Three Generations. Built to Last.
What We Do
Concrete and construction work across Central Wisconsin — from everyday flatwork to custom builds.
New pours and full replacements. We assess grade, drainage, and finish to give you a driveway built to hold up through Wisconsin winters.
Garage slabs, shop floors, building foundations, basement floors, and foundation repair — interior and exterior. Proper prep and mix selection for the load and conditions of your project.
Custom patterns, exposed aggregate, and specialty finishes that elevate any outdoor space — ideal for patios, entries, and pool surrounds.
Patios, sidewalks, pool decks, steps — any horizontal surface. Clean edges, proper slope, and the finish that fits your space.
From patching cracks and surface damage to full removal and fresh pours — we assess what your concrete actually needs and do it right, whether that's a repair or a complete redo.
Concrete retaining walls and epoxy/specialty floor coatings considered on a case-by-case basis. Contact us to discuss your specific project.
Ask About AvailabilityOur Story
The Karlen family has been in this business for decades. My grandfather was a mason, my father carried on the trade, and now I've built a business on the same foundation they gave me — quality work, honest pricing, and pride in what we build.
With 15 years of hands-on experience — the last 5 running my own operation here in Marathon — I've worked on everything from driveways and patios to garages, additions, and commercial builds. I know Central Wisconsin's soil, its winters, and what it takes to build things that hold up decade after decade.
When you hire KCC, you're not getting a faceless crew. You're getting someone who grew up in this business, who cares about the finished product, and who stands behind every job.
Our Work
A look at work completed across Central Wisconsin — select any photo to enlarge.
More photos coming soon, including before & after comparisons.
Get Started
Answer a few quick questions about your concrete project and we'll follow up with a detailed estimate. For construction projects, contact us directly — we'll need to see the site before putting numbers together.
Estimated Project Range
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Based on your inputs. Final pricing depends on site conditions, access, and materials. We'll confirm everything when we follow up.
Thanks for reaching out. We'll review your project details and follow up within 1–2 business days.
Back to TopGet in Touch
Have a question or want to talk through a project? We'd love to hear from you.
We're primarily word-of-mouth, and we take every inquiry seriously. If someone referred you to us, please let us know — it helps us thank them for spreading the word!